chlortetracycli   weight/day for
                                                                    ne; and for the   a total of 28
                                                                    prevention of     days to prevent
                                                                    coccidiosis       coccidiosis. A
                                                                    caused by         withdrawal
                                                                    Eimeria bovis     period has not
                                                                    and E. zuernii.   been
                                                                                established for
                                                                                this product in
                                                                                pre-ruminating
                                                                                calves. Do not
                                                                                use in calves
                                                                                to be processed
                                                                                for veal. Do
                                                                                not feed to
                                                                                animals
                                                                                producing milk
                                                                                for food.
                                                                                Decoquinate as
                                                                                provided by No.
                                                                                054771 in Sec.
                                                                                510.600(c) of
                                                                                this chapter.
(xxii) 4,000 to 20,000 g/ton to   Melengestrol acetate, 0.25 to 2  Growing beef      Top dress 0.5 to     054771
 provide 10 mg/lb of body weight   g/ton to provide 0.25 to 0.5     heifers fed in    2 pounds of
 per day.                          mg melengestrol acetate per      confinement for   this medicated
                                   head per day.                    slaughter: For    feed containing
                                                                    the treatment     both drugs onto
                                                                    of bacterial      or mix at
                                                                    enteritis         feeding with a
                                                                    caused by         non-medicated
                                                                    Escherichia       feed for not
                                                                    coli and          more than 5
                                                                    bacterial         days. After
                                                                    pneumonia         completing
                                                                    caused by         feeding of this
                                                                    Pasteurella       combination,
                                                                    multocida         continue
                                                                    organisms         feeding a Type
                                                                    susceptible to    C top-dress
                                                                    chlortetracycli   medicated feed
                                                                    ne, and for       containing
                                                                    increased rate    melengestrol
                                                                    of weight gain,   acetate alone.
                                                                    improved feed     A withdrawal
                                                                    efficiency, and   period has not
                                                                    suppression of    been
                                                                    estrus (heat).    established for
                                                                                this product in
                                                                                pre-ruminating
                                                                                calves. Do not
                                                                                use in calves
                                                                                to be processed
                                                                                for veal.
                                                                                Chlortetracycli
                                                                                ne and
                                                                                melengestrol as
                                                                                provided by No.
                                                                                054771 in Sec.
                                                                                510.600(c) of
                                                                                this chapter.
(xxiii) 4,000 to 20,000 g/ton to  Melengestrol acetate, 0.5 to 2   Replacement       Top dress 0.5 to     054771
 provide 10 mg/lb of body weight   g/ton to provide 0.5 mg          dairy heifers     2 pounds of
 per day.                          melengestrol acetate per head    less than 20      this medicated
                                   per day.                         months of age     feed containing
                                                                    and replacement   both drugs onto
                                                                    beef heifers:     or mix at
                                                                    For the           feeding with a
                                                                    treatment of      non-medicated
                                                                    bacterial         feed for not
                                                                    enteritis         more than 5
                                                                    caused by         days. After
                                                                    Escherichia       completing
                                                                    coli and          feeding of this
                                                                    bacterial         combination,
                                                                    pneumonia         continue
                                                                    caused by         feeding a Type
                                                                    Pasteurella       C top-dress
                                                                    multocida         medicated feed
                                                                    organisms         containing
                                                                    susceptible to    melengestrol
                                                                    chlortetracycli   acetate alone
                                                                    ne, and for       for a total
                                                                    suppression of    time not
                                                                    estrus (heat).    exceeding 24
                                                                                days. Use in
                                                                                dairy heifers
                                                                                less than 20
                                                                                months of age
                                                                                may cause drug
                                                                                residues in
                                                                                milk and/or in
                                                                                calves born to
                                                                                these cows. A
                                                                                withdrawal
                                                                                period has not
                                                                                been
                                                                                established for
                                                                                this product in
                                                                                pre-ruminating
                                                                                calves. Do not
                                                                                use in calves
                                                                                to be processed
                                                                                for veal.
                                                                                Chlortetracycli
                                                                                ne and
                                                                                melengestrol as
                                                                                provided by No.
                                                                                054771 in Sec.
                                                                                510.600(c) of
                                                                                this chapter.

(xxiv) to provide 350 mg/head/    ...............................  Beef cattle: For  Feed to provide      054771
 day.                                                               control of        chlortetracycli     066104
                                                                    bacterial         ne at the rate      069254
                                                                    pneumonia         of 350 mg per
                                                                    associated with   animal daily. A
                                                                    shipping fever    withdrawal
                                                                    complex caused    period has not
                                                                    by Pasteurella    been
                                                                    spp.              established for
                                                                    susceptible to    this product in
                                                                    chlortetracycli   pre-ruminating
                                                                    ne.               calves. Do not
                                                                                use in calves
                                                                                to be processed
                                                                                for veal.
                                                                                Withdrawal
                                                                                periods: To
                                                                                sponsor No.
                                                                                054771 under
                                                                                NADAs 046-699
                                                                                and 049-287,
                                                                                No. 066104
                                                                                under NADA 092-
                                                                                286, and No.
                                                                                069254 under
                                                                                NADA 048-480:
                                                                                Withdraw 48
                                                                                hours prior to
                                                                                slaughter. To
                                                                                sponsor No.
                                                                                054771 under
                                                                                NADA 048-761
                                                                                and No. 069254
                                                                                under NADA 138-
                                                                                935 and ANADA
                                                                                200-510: Zero
                                                                                withdrawal
                                                                                period.
(xxv) to provide 350 mg/head/day  ...............................  Beef cattle       Feed to provide      054771
                                                                    (under 700 lb):   chlortetracycli     066104
                                                                    For control of    ne at the rate      069254
                                                                    active            of 350 mg per
                                                                    infection of      animal daily. A
                                                                    anaplasmosis      withdrawal
                                                                    caused by         period has not
                                                                    Anaplasma         been
                                                                    marginale         established for
                                                                    susceptible to    this product in
                                                                    chlortetracycli   pre-ruminating
                                                                    ne.               calves. Do not
                                                                                use in calves
                                                                                to be processed
                                                                                for veal.
                                                                                Withdrawal
                                                                                periods: To
                                                                                sponsor No.
                                                                                054771 under
                                                                                NADAs 046-699
                                                                                and 049-287,
                                                                                No. 066104
                                                                                under NADA 092-
                                                                                286, and No.
                                                                                069254 under
                                                                                NADA 048-480:
                                                                                Withdraw 48
                                                                                hours prior to
                                                                                slaughter. To
                                                                                sponsor No.
                                                                                054771 under
                                                                                NADA 048-761
                                                                                and No. 069254
                                                                                under NADA 138-
                                                                                935 and ANADA
                                                                                200-510: Zero
                                                                                withdrawal
                                                                                period.
(xxvi) 50 to 350 g/ton to         Melengestrol acetate, 0.5 to 2   Replacement beef  Melengestrol         054771
 provide 350 mg/head/day.          g/ton to provide 0.5 mg          heifers under     acetate Type C
                                   melengestrol acetate per head    700 lb: For       top-dress
                                   per day.                         control of        medicated feed
                                                                    active            must be top
                                                                    infection of      dressed or
                                                                    anaplasmosis      mixed at
                                                                    caused by         feeding with
                                                                    Anaplasma         the Type C
                                                                    marginale         medicated feed
                                                                    susceptible to    containing 50
                                                                    chlortetracycli   to 350 g/ton
                                                                    ne and for        chlortetracycli
                                                                    suppression of    ne for up to 24
                                                                    estrus (heat).    days of
                                                                                feeding. Do not
                                                                                exceed 24 days
                                                                                of feeding.
                                                                                Chlortetracycli
                                                                                ne and
                                                                                melengestrol as
                                                                                provided by No.
                                                                                054771 in Sec.
                                                                                510.600(c) of
                                                                                this chapter.
(xxvii) 20 to 350 g/ton.........  ...............................  Beef cattle and   Feed to provide      054771
                                                                    replacement       chlortetracycli     069254
                                                                    dairy heifers:    ne at the rate
                                                                    For control of    of 350 mg per
                                                                    bacterial         head per day.
                                                                    pneumonia         This drug is
                                                                    associated with   not approved
                                                                    shipping fever    for use in
                                                                    complex caused    female dairy
                                                                    by Pasteurella    cattle 20
                                                                    spp.              months of age
                                                                    susceptible to    or older,
                                                                    chlortetracycli   including dry
                                                                    ne.               dairy cows. Use
                                                                                in these cattle
                                                                                may cause drug
                                                                                residues in
                                                                                milk and/or in
                                                                                calves born to
                                                                                these cows. A
                                                                                withdrawal
                                                                                period has not
                                                                                been
                                                                                established for
                                                                                this product in
                                                                                pre-ruminating
                                                                                calves. Do not
                                                                                use in calves
                                                                                to be processed
                                                                                for veal. To
                                                                                sponsor No.
                                                                                054771 under
                                                                                NADA 048-761
                                                                                and No. 069254
                                                                                under ANADA 200-
                                                                                510: Zero
                                                                                withdrawal
                                                                                period.
(xxviii) 20 to 350 g/ton to       Melengestrol acetate, 0.25 to 2  Growing beef      Melengestrol         054771
 provide 350 mg/head/day.          g/ton to provide 0.25 to 0.5     heifers fed in    acetate Type C
                                   mg melengestrol acetate per      confinement for   top-dress
                                   head per day.                    slaughter: For    medicated feed
                                                                    control of        must be top
                                                                    bacterial         dressed onto or
                                                                    pneumonia         mixed at
                                                                    associated with   feeding with
                                                                    shipping fever    the Type C
                                                                    complex caused    medicated feed
                                                                    by Pasteurella    containing 20
                                                                    spp.              to 350 g/ton
                                                                    susceptible to    chlortetracycli
                                                                    chlortetracycli   ne.
                                                                    ne, increased     Chlortetracycli
                                                                    rate of weight    ne and
                                                                    gain, improved    melengestrol as
                                                                    feed              provided by No.
                                                                    efficiency, and   054771 in Sec.
                                                                    suppression of     510.600(c) of
                                                                    estrus (heat).    this chapter.

(xxix) 20 to 350 g/ton to         Melengestrol acetate, 0.5 to 2   Replacement       Melengestrol         054771
 provide 350 mg/head/day.          g/ton to provide 0.5 mg          dairy heifers     acetate Type C
                                   melengestrol acetate per head    less than 20      top-dress
                                   per day.                         months of age     medicated feed
                                                                    and replacement   must be top
                                                                    beef heifers:     dressed or
                                                                    For control of    mixed at
                                                                    bacterial         feeding with
                                                                    pneumonia         the Type C
                                                                    associated with   medicated feed
                                                                    shipping fever    containing 20
                                                                    complex caused    to 350 g/ton
                                                                    by Pasteurella    chlortetracycli
                                                                    spp.              ne. Use in
                                                                    susceptible to    dairy heifers
                                                                    chlortetracycli   less than 20
                                                                    ne and            months of age
                                                                    suppression of    may cause drug
                                                                    estrus (heat).    residues in
                                                                                milk and/or in
                                                                                calves born to
                                                                                these cows. A
                                                                                withdrawal
                                                                                period has not
                                                                                been
                                                                                established for
                                                                                this product in
                                                                                pre-ruminating
                                                                                calves. Do not
                                                                                use in calves
                                                                                to be processed
                                                                                for veal.
                                                                                Chlortetracycli
                                                                                ne and
                                                                                melengestrol as
                                                                                provided by No.
                                                                                054771 in Sec.
                                                                                510.600(c) of
                                                                                this chapter.
(xxx) to provide 350 mg/head/day  Laidlomycin, 5.................  Cattle fed in     Feed                 054771
                                                                    confinement for   continuously at
                                                                    slaughter: For    a rate of 30 to
                                                                    control of        75 mg
                                                                    bacterial         laidlomycin
                                                                    pneumonia         propionate
                                                                    associated with   potassium per
                                                                    shipping fever    head per day. A
                                                                    complex caused    withdrawal
                                                                    by Pasteurella    period has not
                                                                    spp.              been
                                                                    susceptible to    established for
                                                                    chlortetracycli   this product in
                                                                    ne; and for       pre-ruminating
                                                                    increased rate    calves. Do not
                                                                    of weight and     use in calves
                                                                    improved feed     to be processed
                                                                    efficiency.       for veal. See
                                                                                Sec.
                                                                                558.305(d) of
                                                                                this chapter.
                                                                                Laidlomycin as
                                                                                provided by No.
                                                                                054771 in Sec.
                                                                                510.600(c) of
                                                                                this chapter.
(xxxi) to provide 350 mg/head/    Laidlomycin, 5 to 10...........  Cattle fed in     Feed                 054771
 day.                                                               confinement for   continuously at
                                                                    slaughter: For    a rate of 30 to
                                                                    control of        75 mg
                                                                    bacterial         laidlomycin
                                                                    pneumonia         propionate
                                                                    associated with   potassium per
                                                                    shipping fever    head per day. A
                                                                    complex caused    withdrawal
                                                                    by Pasteurella    period has not
                                                                    spp.              been
                                                                    susceptible to    established for
                                                                    chlortetracycli   this product in
                                                                    ne; and for       pre-ruminating
                                                                    improved feed     calves. Do not
                                                                    efficiency.       use in calves
                                                                                to be processed
                                                                                for veal. See
                                                                                Sec.
                                                                                558.305(d) of
                                                                                this chapter.
                                                                                Laidlomycin as
                                                                                provided by No.
                                                                                054771 in Sec.
                                                                                510.600(c) of
                                                                                this chapter.
(xxxii) 25 to 42.2 g/ton to       Lasalocid, 25 to 30............  Cattle under 700  Feed                 054771
 provide 350 mg/head/day.                                           pounds fed in     continuously in     069254
                                                                    confinement for   complete feed
                                                                    slaughter: For    at a rate of
                                                                    control of        350 mg
                                                                    active            chlortetracycli
                                                                    infection of      ne and not less
                                                                    anaplasmosis      than 250 mg nor
                                                                    caused by         more than 360
                                                                    Anaplasma         mg lasalocid
                                                                    marginale         per head daily.
                                                                    susceptible to    Do not allow
                                                                    chlortetracycli   horses or other
                                                                    ne; and for       equines access
                                                                    increased rate    to feeds
                                                                    of weight gain    containing
                                                                    and improved      lasalocid. No
                                                                    feed efficiency.  withdrawal
                                                                                period is
                                                                                required. A
                                                                                withdrawal
                                                                                period has not
                                                                                been
                                                                                established for
                                                                                this product in
                                                                                pre-ruminating
                                                                                calves. Do not
                                                                                use in calves
                                                                                to be processed
                                                                                for veal. See
                                                                                Sec.
                                                                                558.311(d) of
                                                                                this chapter.
                                                                                Lasalocid as
                                                                                provided by No.
                                                                                054771 in Sec.
                                                                                510.600(c) of
                                                                                this chapter.
(xxxiii) 25 to 42.2 g/ton to      Lasalocid, 25 to 30............  Cattle fed in     Feed                 054771
 provide 350 mg/head/day.                                           confinement for   continuously in     069254
                                                                    slaughter: For    complete feed
                                                                    control of        at a rate of
                                                                    bacterial         350 mg
                                                                    pneumonia         chlortetracycli
                                                                    associated with   ne and not less
                                                                    shipping fever    than 250 mg nor
                                                                    complex caused    more than 360
                                                                    by Pasteurella    mg lasalocid
                                                                    multocida         per head daily.
                                                                    organisms         Do not allow
                                                                    susceptible to    horses or other
                                                                    chlortetracycli   equines access
                                                                    ne; and for       to feeds
                                                                    increased rate    containing
                                                                    of weight gain    lasalocid. No
                                                                    and improved      withdrawal
                                                                    feed efficiency.  period is
                                                                                required. A
                                                                                withdrawal
                                                                                period has not
                                                                                been
                                                                                established for
                                                                                this product in
                                                                                pre-ruminating
                                                                                calves. Do not
                                                                                use in calves
                                                                                to be processed
                                                                                for veal. See
                                                                                Sec.
                                                                                558.311(d) of
                                                                                this chapter.
                                                                                Lasalocid as
                                                                                provided by No.
                                                                                054771 in Sec.
                                                                                510.600(c) of
                                                                                this chapter.

(xxxiv) 25 to 100 g/ton to        Lasalocid, 10 to 30............  Cattle under 700  Feed                 054771
 provide 350 mg/head/day.                                           pounds fed in     continuously in     069254
                                                                    confinement for   complete feed
                                                                    slaughter: For    at a rate of
                                                                    control of        350 mg
                                                                    active            chlortetracycli
                                                                    infection of      ne and not less
                                                                    anaplasmosis      than 100 mg nor
                                                                    caused by         more than 360
                                                                    Anaplasma         mg lasalocid
                                                                    marginale         per head daily.
                                                                    susceptible to    Do not allow
                                                                    chlortetracycli   horses or other
                                                                    ne; and for       equines access
                                                                    improved feed     to feeds
                                                                    efficiency.       containing
                                                                                lasalocid. No
                                                                                withdrawal
                                                                                period is
                                                                                required. A
                                                                                withdrawal
                                                                                period has not
                                                                                been
                                                                                established for
                                                                                this product in
                                                                                pre-ruminating
                                                                                calves. Do not
                                                                                use in calves
                                                                                to be processed
                                                                                for veal. See
                                                                                Sec.
                                                                                558.311(d) of
                                                                                this chapter.
                                                                                Lasalocid as
                                                                                provided by No.
                                                                                054771 in Sec.
                                                                                510.600(c) of
                                                                                this chapter.
(xxxv) 25 to 100 g/ton to         Lasalocid, 10 to 30............  Cattle fed in     Feed                 054771
 provide 350 mg/head/day.                                           confinement for   continuously in     069254
                                                                    slaughter: For    complete feed
                                                                    control of        at a rate of
                                                                    bacterial         350 mg
                                                                    pneumonia         chlortetracycli
                                                                    associated with   ne and not less
                                                                    shipping fever    than 100 mg nor
                                                                    complex caused    more than 360
                                                                    by Pasteurella    mg lasalocid
                                                                    multocida         per head daily.
                                                                    organisms         Do not allow
                                                                    susceptible to    horses or other
                                                                    chlortetracycli   equines access
                                                                    ne; and for       to feeds
                                                                    improved feed     containing
                                                                    efficiency.       lasalocid. No
                                                                                withdrawal
                                                                                period is
                                                                                required. A
                                                                                withdrawal
                                                                                period has not
                                                                                been
                                                                                established for
                                                                                this product in
                                                                                pre-ruminating
                                                                                calves. Do not
                                                                                use in calves
                                                                                to be processed
                                                                                for veal. See
                                                                                Sec.
                                                                                558.311(d) of
                                                                                this chapter.
                                                                                Lasalocid as
                                                                                provided by No.
                                                                                054771 in Sec.
                                                                                510.600(c) of
                                                                                this chapter.
(xxxvi) 25 to 700 to provide 350  Lasalocid, 30 to 600...........  Pasture cattle    Feed                 054771
 g/head/day.                                                        (slaughter,       continuously on     069254
                                                                    stocker, feeder   a hand-fed
                                                                    cattle, dairy     basis at a rate
                                                                    and beef          of 350 mg
                                                                    replacement       chlortetracycli
                                                                    heifers): For     ne and not less
                                                                    control of        than 60 mg nor
                                                                    bacterial         more than 300
                                                                    pneumonia         mg lasalocid
                                                                    associated with   per head per
                                                                    shipping fever    day in at least
                                                                    complex caused    1 pound of
                                                                    by Pasteurella    feed. Daily
                                                                    multocida         lasalocid
                                                                    organisms         intakes in
                                                                    susceptible to    excess of 200
                                                                    chlortetracycli   mg/head/day in
                                                                    ne; and for       pasture cattle
                                                                    increased rate    have not been
                                                                    of weight gain.   shown to be
                                                                                more effective
                                                                                than 200 mg
                                                                                lasalocid/head/
                                                                                day. Do not
                                                                                allow horses or
                                                                                other equines
                                                                                access to feeds
                                                                                containing
                                                                                lasalocid. No
                                                                                withdrawal
                                                                                period is
                                                                                required. A
                                                                                withdrawal
                                                                                period has not
                                                                                been
                                                                                established for
                                                                                this product in
                                                                                pre-ruminating
                                                                                calves. Do not
                                                                                use in calves
                                                                                to be processed
                                                                                for veal. See
                                                                                Sec.
                                                                                558.311(d) of
                                                                                this chapter.
                                                                                Lasalocid as
                                                                                provided by No.
                                                                                054771 in Sec.
                                                                                510.600(c) of
                                                                                this chapter.
(xxxvii) 25 to 700 g/ton to       Lasalocid, 30 to 600;            Replacement beef  The melengestrol     054771
 provide 350 mg/head/day.          melengestrol acetate, 0.5 to 2   heifers on        acetate Type C
                                   g/ton to provide 0.5 mg/head/    pasture: For      top-dress
                                   day melengestrol acetate.        control of        medicated feed
                                                                    bacterial         must be top
                                                                    pneumonia         dressed onto or
                                                                    associated with   mixed at
                                                                    shipping fever    feeding with a
                                                                    complex caused    Type C
                                                                    by Pasteurella    medicated feed
                                                                    spp.              containing 25
                                                                    susceptible to    to 700 g/ton of
                                                                    chlortetracycli   chlortetracycli
                                                                    ne, increased     ne and 30 to
                                                                    rate of weight    600 g/ton
                                                                    gain, and         lasalocid to
                                                                    suppression of    provide 350 mg
                                                                    estrus (heat).    chlortetracycli
                                                                                ne per head
                                                                                daily and not
                                                                                less than 60 mg
                                                                                or more than
                                                                                300 mg
                                                                                lasalocid per
                                                                                head daily in
                                                                                at least 1
                                                                                pound of feed.
                                                                                Do not exceed
                                                                                24 days of
                                                                                feeding. See
                                                                                Sec.
                                                                                558.311(d) of
                                                                                this chapter.
                                                                                Chlortetracycli
                                                                                ne, lasalocid,
                                                                                and
                                                                                melengestrol as
                                                                                provided by No.
                                                                                054771 in Sec.
                                                                                510.600(c) of
                                                                                this chapter.

(xxxviii) 25 to 700 to provide    Lasalocid, 30 to 600...........  Pasture cattle    Feed                 054771
 350 mg/head/day.                                                   (slaughter,       continuously on     069254
                                                                    stocker, feeder   a hand-fed
                                                                    cattle, beef      basis at a rate
                                                                    replacement       of 350 mg
                                                                    heifers) under    chlortetracycli
                                                                    700 pounds: For   ne and not less
                                                                    control of        than 60 mg nor
                                                                    active            more than 300
                                                                    infection of      mg lasalocid
                                                                    anaplasmosis      per head per
                                                                    caused by         day in at least
                                                                    Anaplasma         1 pound of
                                                                    marginale         feed. Daily
                                                                    susceptible to    lasalocid
                                                                    chlortetracycli   intakes in
                                                                    ne; and for       excess of 200
                                                                    increased rate    mg/head/day in
                                                                    of weight gain.   pasture cattle
                                                                                have not been
                                                                                shown to be
                                                                                more effective
                                                                                than 200 mg
                                                                                lasalocid/head/
                                                                                day. Do not
                                                                                allow horses or
                                                                                other equines
                                                                                access to feeds
                                                                                containing
                                                                                lasalocid. No
                                                                                withdrawal
                                                                                period is
                                                                                required. A
                                                                                withdrawal
                                                                                period has not
                                                                                been
                                                                                established for
                                                                                this product in
                                                                                pre-ruminating
                                                                                calves. Do not
                                                                                use in calves
                                                                                to be processed
                                                                                for veal. See
                                                                                Sec.
                                                                                558.311(d) of
                                                                                this chapter.
                                                                                Lasalocid as
                                                                                provided by No.
                                                                                054771 in Sec.
                                                                                510.600(c) of
                                                                                this chapter.
(xxxix) 25 to 700 g/ton to        Lasalocid, 30 to 600;            Replacement beef  The melengestrol     054771
 provide 350 mg/head/day.          melengestrol acetate, 0.5 to 2   heifers on        acetate Type C
                                   g/ton to provide 0.5 mg/head/    pasture under     top-dress
                                   day melengestrol acetate.        700 pounds: For   medicated feed
                                                                    control of        must be top
                                                                    active            dressed onto or
                                                                    infection of      mixed at
                                                                    anaplasmosis      feeding with a
                                                                    caused by         Type C
                                                                    Anaplasma         medicated feed
                                                                    marginale         containing 25
                                                                    susceptible to    to 700 g/ton of
                                                                    chlortetracycli   chlortetracycli
                                                                    ne, increased     ne and 30 to
                                                                    rate of weight    600 g/ton
                                                                    gain, and         lasalocid to
                                                                    suppression of    provide 350 mg
                                                                    estrus (heat).    chlortetracycli
                                                                                ne per head
                                                                                daily and not
                                                                                less than 60 mg
                                                                                or more than
                                                                                300 mg
                                                                                lasalocid per
                                                                                head daily in
                                                                                at least 1
                                                                                pound of feed.
                                                                                Do not exceed
                                                                                24 days of
                                                                                feeding. See
                                                                                Sec.
                                                                                558.311(d) of
                                                                                this chapter.
                                                                                Chlortetracycli
                                                                                ne, lasalocid,
                                                                                and
                                                                                melengestrol as
                                                                                provided by No.
                                                                                054771 in Sec.
                                                                                510.600(c) of
                                                                                this chapter.
(xl) 25 to 2,800 to provide 350   Lasalocid, 30 to 181.8.........  Beef cattle       Hand feed            054771
 mg/head/day.                                                       weighing under    continuously at     069254
                                                                    700 pounds: For   a rate of 350
                                                                    control of        mg
                                                                    active            chlortetracycli
                                                                    infection of      ne and 1 mg
                                                                    anaplasmosis      lasalocid per
                                                                    caused by         2.2 lb. body
                                                                    Anaplasma         weight daily to
                                                                    marginale         cattle with a
                                                                    susceptible to    maximum of 360
                                                                    chlortetracycli   mg of lasalocid
                                                                    ne; and for the   per head per
                                                                    control of        day. Do not
                                                                    coccidiosis       allow horses or
                                                                    caused by         other equines
                                                                    Eimeria bovis     access to feeds
                                                                    and E. zuernii.   containing
                                                                                lasalocid. No
                                                                                withdrawal
                                                                                period is
                                                                                required. A
                                                                                withdrawal
                                                                                period has not
                                                                                been
                                                                                established for
                                                                                this product in
                                                                                pre-ruminating
                                                                                calves. Do not
                                                                                use in calves
                                                                                to be processed
                                                                                for veal. See
                                                                                Sec.
                                                                                558.311(d) of
                                                                                this chapter.
                                                                                Chlortetracycli
                                                                                ne and
                                                                                lasalocid as
                                                                                provided by No.
                                                                                054771 in Sec.
                                                                                510.600(c) of
                                                                                this chapter.
(xli) 25 to 2,80 g/ton to         Lasalocid, 30 to 181.8;          Growing beef      The melengestrol     054771
 provide 350 mg/head/day.          melengestrol acetate, 0.25 to    heifers fed in    acetate Type C
                                   2 g/ton to provide 0.25 to 0.5   confinement for   top-dress
                                   mg/head/day melengestrol         slaughter under   medicated feed
                                   acetate.                         700 pounds: For   must be top
                                                                    control of        dressed onto or
                                                                    active            mixed at
                                                                    infection of      feeding with a
                                                                    anaplasmosis      Type C
                                                                    caused by         medicated feed
                                                                    Anaplasma         containing 25
                                                                    marginale         to 2,800 g/ton
                                                                    susceptible to    of
                                                                    chlortetracycli   chlortetracycli
                                                                    ne, control of    ne and 30 to
                                                                    coccidiosis       181.8 g/ton
                                                                    caused by         lasalocid to
                                                                    Eimeria bovis     provide 350 mg
                                                                    and E. zuernii,   chlortetracycli
                                                                    increased rate    ne per head per
                                                                    of weight gain,   day and 1 mg
                                                                    improved feed     lasalocid per
                                                                    efficiency, and   2.2 lb. of body
                                                                    suppression of    weight daily
                                                                    estrus (heat).    with a maximum
                                                                                of 360 mg
                                                                                lasalocid per
                                                                                head per day.
                                                                                See Sec.
                                                                                558.311(d) of
                                                                                this chapter.
                                                                                Chlortetracycli
                                                                                ne, lasalocid,
                                                                                and
                                                                                melengestrol as
                                                                                provided by No.
                                                                                054771 in Sec.
                                                                                510.600(c) of
                                                                                this chapter.

(xlii) 25 to 2,800 to provide     Lasalocid, 30 to 181.8.........  Beef cattle       Hand feed            054771
 350 mg/head/day.                                                   weighing up to    continuously at     069254
                                                                    800 pounds: For   a rate of 350
                                                                    control of        mg
                                                                    bacterial         chlortetracycli
                                                                    pneumonia         ne and 1 mg
                                                                    associated with   lasalocid per
                                                                    shipping fever    2.2 lb. body
                                                                    complex caused    weight daily to
                                                                    by Pasteurella    cattle with a
                                                                    spp.              maximum of 360
                                                                    susceptible to    mg of lasalocid
                                                                    chlortetracycli   per head per
                                                                    ne; and for the   day. Do not
                                                                    control of        allow horses or
                                                                    coccidiosis       other equines
                                                                    caused by         access to feeds
                                                                    Eimeria bovis     containing
                                                                    and E. zuernii.   lasalocid. No
                                                                                withdrawal
                                                                                period is
                                                                                required. A
                                                                                withdrawal
                                                                                period has not
                                                                                been
                                                                                established for
                                                                                this product in
                                                                                pre-ruminating
                                                                                calves. Do not
                                                                                use in calves
                                                                                to be processed
                                                                                for veal. See
                                                                                Sec.
                                                                                558.311(d) of
                                                                                this chapter.
                                                                                Lasalocid as
                                                                                provided by No.
                                                                                054771 in Sec.
                                                                                510.600(c) of
                                                                                this chapter.
(xliii) 25 to 2,800 g/ton to      Lasalocid, 30 to 181.8;          Growing beef      The melengestrol     054771
 provide 350 mg/head/day.          melengestrol acetate, 0.25 to    heifers fed in    acetate Type C
                                   2 g/ton to provide 0.25 to 0.5   confinement for   top-dress
                                   mg/head/day melengestrol         slaughter up to   medicated feed
                                   acetate.                         800 pounds: For   must be top
                                                                    control of        dressed onto or
                                                                    bacterial         mixed at
                                                                    pneumonia         feeding with a
                                                                    associated with   Type C
                                                                    shipping fever    medicated feed
                                                                    complex caused    containing 25
                                                                    by Pasteurella    to 2,800 g/ton
                                                                    spp.              of
                                                                    susceptible to    chlortetracycli
                                                                    chlortetracycli   ne and 30 to
                                                                    ne, control of    181.8 g/ton
                                                                    coccidiosis       lasalocid to
                                                                    caused by         provide 350 mg
                                                                    Eimeria bovis     chlortetracycli
                                                                    and E. zuernii,   ne per head
                                                                    increased rate    daily and 1 mg
                                                                    of weight gain,   lasalocid per
                                                                    improved feed     2.2 lb. of body
                                                                    efficiency, and   weight daily
                                                                    suppression of    with a maximum
                                                                    estrus (heat).    of 360 mg
                                                                                lasalocid per
                                                                                head per day.
                                                                                See Sec.
                                                                                558.311(d) of
                                                                                this chapter.
                                                                                Chlortetracycli
                                                                                ne, lasalocid,
                                                                                and
                                                                                melengestrol as
                                                                                provided by No.
                                                                                054771 in Sec.
                                                                                510.600(c) of
                                                                                this chapter.
(xliv) 25 to 2,800 g/ton to       Lasalocid, 30 to 181.8;          Replacement beef  The melengestrol     054771
 provide 350 mg/head/day.          melengestrol acetate, 0.5 to 2   heifers up to     acetate Type C
                                   g/ton to provide 0.5 mg/head/    800 pounds: For   top-dress
                                   day melengestrol acetate.        control of        medicated feed
                                                                    bacterial         must be top
                                                                    pneumonia         dressed onto or
                                                                    associated with   mixed at
                                                                    shipping fever    feeding with a
                                                                    complex caused    Type C
                                                                    by Pasteurella    medicated feed
                                                                    spp.              containing 25
                                                                    susceptible to    to 2,800 g/ton
                                                                    chlortetracycli   of
                                                                    ne, control of    chlortetracycli
                                                                    coccidiosis       ne and 30 to
                                                                    caused by         181.8 g/ton
                                                                    Eimeria bovis     lasalocid to
                                                                    and E. zuernii,   provide 350 mg
                                                                    and suppression   chlortetracycli
                                                                    of estrus         ne per head
                                                                    (heat).           daily and 1 mg
                                                                                lasalocid per
                                                                                2.2 lb. of body
                                                                                weight daily
                                                                                with a maximum
                                                                                of 360 mg
                                                                                lasalocid per
                                                                                head per day.
                                                                                Do not exceed
                                                                                24 days of
                                                                                feeding. See
                                                                                Sec.
                                                                                558.311(d) of
                                                                                this chapter.
                                                                                Chlortetracycli
                                                                                ne, lasalocid,
                                                                                and
                                                                                melengestrol as
                                                                                provided by No.
                                                                                054771 in Sec.
                                                                                510.600(c) of
                                                                                this chapter.
(xlv) 500 to 4,000 to provide 10  Lasalocid, 30 to 181.8.........  Cattle weighing   Hand feed            054771
 mg/head/day.                                                       up to 800         continuously        069254
                                                                    pounds: For the   for not more
                                                                    treatment of      than 5 days at
                                                                    bacterial         a rate of 10 mg
                                                                    enteritis         chlortetracycli
                                                                    caused by         ne and 1 mg
                                                                    Escherichia       lasalocid per
                                                                    coli and          2.2 lb. body
                                                                    bacterial         weight daily to
                                                                    pneumonia         cattle with a
                                                                    caused by         maximum of 360
                                                                    Pasteurella       mg of lasalocid
                                                                    multocida         per head per
                                                                    susceptible to    day. Do not
                                                                    chlortetracycli   allow horses or
                                                                    ne; and for the   other equines
                                                                    control of        access to feeds
                                                                    coccidiosis       containing
                                                                    caused by         lasalocid. No
                                                                    Eimeria bovis     withdrawal
                                                                    and E. zuernii.   period is
                                                                                required. A
                                                                                withdrawal
                                                                                period has not
                                                                                been
                                                                                established for
                                                                                this product in
                                                                                pre-ruminating
                                                                                calves. Do not
                                                                                use in calves
                                                                                to be processed
                                                                                for veal. See
                                                                                Sec.
                                                                                558.311(d) of
                                                                                this chapter.
                                                                                Lasalocid as
                                                                                provided by No.
                                                                                054771 in Sec.
                                                                                510.600(c) of
                                                                                this chapter.

(xlvi) 500 to 4,000 g/ton to      Lasalocid, 30 to 181.8;          Growing beef      The melengestrol     054771
 provide 10 mg/lb of body weight   melengestrol acetate, 0.25 to    heifers fed in    acetate Type C
 daily.                            2 g/ton to provide 0.25 to 0.5   confinement for   top-dress
                                   mg/head/day melengestrol         slaughter up to   medicated feed
                                   acetate.                         800 pounds: For   must be top
                                                                    the treatment     dressed onto or
                                                                    of bacterial      mixed at
                                                                    enteritis         feeding with a
                                                                    caused by         Type C
                                                                    Escherichia       medicated feed
                                                                    coli and          containing 500
                                                                    bacterial         to 4,000 g/ton
                                                                    pneumonia         of
                                                                    caused by         chlortetracycli
                                                                    Pasteurella       ne and 30 to
                                                                    multocida         181.8 g/ton
                                                                    organisms         lasalocid to
                                                                    susceptible to    provide 10 mg
                                                                    chlortetracycli   chlortetracycli
                                                                    ne, control of    ne per lb of
                                                                    coccidiosis       body weight per
                                                                    caused by         day and 1 mg
                                                                    Eimeria bovis     lasalocid per
                                                                    and E. zuernii,   2.2 lb of body
                                                                    increased rate    weight per day
                                                                    of weight gain,   with a maximum
                                                                    improved feed     of 360 mg
                                                                    efficiency, and   lasalocid per
                                                                    suppression of    head per day
                                                                    estrus (heat).    for not more
                                                                                than 5 days of
                                                                                feeding. After
                                                                                completing
                                                                                feeding of this
                                                                                combination,
                                                                                continue
                                                                                feeding a Type
                                                                                C top-dress
                                                                                medicated feed
                                                                                containing
                                                                                melengestrol
                                                                                acetate alone.
                                                                                See Sec.
                                                                                558.311(d) of
                                                                                this chapter.
                                                                                Chlortetracycli
                                                                                ne, lasalocid,
                                                                                and
                                                                                melengestrol as
                                                                                provided by No.
                                                                                054771 in Sec.
                                                                                510.600(c) of
                                                                                this chapter.
(xlvii) 500 to 4,000 g/ton to     Lasalocid, 30 to 181.8;          Replacement       The melengestrol     054771
 provide 10 mg/lb of body weight   melengestrol acetate, 0.5 to 2   dairy heifers     acetate Type C
 daily.                            g/ton to provide 0.5 mg/head/    up to 800         top-dress
                                   day melengestrol acetate.        pounds and less   medicated feed
                                                                    than 20 months    must be top
                                                                    of age and        dressed onto or
                                                                    replacement       mixed at
                                                                    beef heifers up   feeding with a
                                                                    to 800 pounds:    Type C
                                                                    For the           medicated feed
                                                                    treatment of      containing 500
                                                                    bacterial         to 4,000 g/ton
                                                                    enteritis         of
                                                                    caused by         chlortetracycli
                                                                    Escherichia       ne and 30 to
                                                                    coli and          181.8 g/ton
                                                                    bacterial         lasalocid to
                                                                    pneumonia         provide 10 mg
                                                                    caused by         chlortetracycli
                                                                    Pasteurella       ne per lb of
                                                                    multocida         body weight per
                                                                    organisms         day and 1 mg
                                                                    susceptible to    lasalocid per
                                                                    chlortetracycli   2.2 lb of body
                                                                    ne, control of    weight per day
                                                                    coccidiosis       with a maximum
                                                                    caused by         of 360 mg
                                                                    Eimeria bovis     lasalocid per
                                                                    and E. zuernii,   head per day
                                                                    and suppression   for not more
                                                                    of estrus         than 5 days.
                                                                    (heat).           After
                                                                                completing
                                                                                feeding of this
                                                                                combination,
                                                                                continue
                                                                                feeding a Type
                                                                                C top-dress
                                                                                medicated feed
                                                                                containing
                                                                                melengestrol
                                                                                acetate alone.
                                                                                See Sec.
                                                                                558.311(d) of
                                                                                this chapter.
                                                                                Chlortetracycli
                                                                                ne, lasalocid,
                                                                                and
                                                                                melengestrol as
                                                                                provided by No.
                                                                                054771 in Sec.
                                                                                510.600(c) of
                                                                                this chapter.
----------------------------------------------------------------------------------------------------------------

* * * * *

0
31. In Sec.  558.342, revise paragraph (e)(1)(iv) to read as follows:

Sec.  558.342  Melengestrol.

* * * * *
    (e) * * *
    (1) * * *

----------------------------------------------------------------------------------------------------------------
  Melengestrol acetate in                                  Indications for
        mg/head/day          Combination in mg/head/day          use             Limitations         Sponsor
----------------------------------------------------------------------------------------------------------------

                                                  * * * * * * *
(iv) 0.25 to 0.5..........  Monensin, 10 to 40.........  Heifers fed in      Add at the rate of  016592
                                                          confinement for     0.5 to 2.0 lb/     045771
                                                          slaughter: For      head/day a         058198
                                                          increased rate of   medicated feed
                                                          weight gain,        (liquid or dry)
                                                          improved feed       containing 0.125
                                                          efficiency, and     to 1.0 mg
                                                          suppression of      melengestrol
                                                          estrus (heat);      acetate/lb to a
                                                          and for the         feed containing
                                                          prevention and      10 to 40 g of
                                                          control of          monensin per ton
                                                          coccidiosis due     to provide 0.25
                                                          to Eimeria bovis    to 0.5 mg
                                                          and E. zuernii.     melengestrol
                                                                              acetate/head/day
                                                                              and 0.14 to 0.42
                                                                              mg monensin/lb
                                                                              body weight,
                                                                              depending on
                                                                              severity of
                                                                              coccidiosis
                                                                              challenge, up to
                                                                              480 mg monensin/
                                                                              head/day. See
                                                                              Sec.   558.355(d)
                                                                              of this chapter.
                                                                              Monensin as
                                                                              provided by No.
                                                                              016592 or 058198;
                                                                              melengestrol
                                                                              acetate as
                                                                              provided by No.
                                                                              016952, 054771,
                                                                              or 058198 in Sec.
                                                                                510.600(c) of
                                                                              this chapter.

                                                  * * * * * * *
----------------------------------------------------------------------------------------------------------------

* * * * *

0
32. In Sec.  558.355, revise paragraphs (b)(2), (f)(2)(ii), (f)(3), and
(f)(4)(i) and (ii), remove paragraph (f)(4)(v), redesignate paragraph
(f)(4)(vi) as paragraph (f)(4)(v) and revise it, and revise paragraphs
(f)(6)(i) and (f)(7)(viii)
    The revisions read as follows:

Sec.  558.355  Monensin.

* * * * *
    (b) * * *
    (2) No. 016592 for use of a Type A medicated article containing
90.7 grams monensin, USP, per pound as in paragraphs (f)(3), (f)(4)(v),
and (f)(6) of this section.
* * * * *
    (f) * * *
    (2) * * *

----------------------------------------------------------------------------------------------------------------
                             Combination in grams/
   Monensin in  grams/ton             ton           Indications for use       Limitations           Sponsor
----------------------------------------------------------------------------------------------------------------

                                                  * * * * * * *
(ii) 54 to 90..............  Bacitracin            Growing turkeys: For  Feed continuously as  058198
                              methylenedisalicyla   the prevention of     the sole ration.     069254
                              te, 4 to 50.          coccidiosis caused    The optimum level
                                                    by Eimeria            depends upon the
                                                    adenoeides, E.        severity of
                                                    meleagrimitis, and    coccidiosis
                                                    E. gallopavonis,      exposure. Do not
                                                    and for increased     allow horses, other
                                                    rate of weight gain   equines, mature
                                                    and improved feed     turkeys, or guinea
                                                    efficiency.           fowl access to feed
                                                                          containing
                                                                          monensin. Ingestion
                                                                          of monensin by
                                                                          horses and guinea
                                                                          fowl has been
                                                                          fatal. Some strains
                                                                          of turkey coccidia
                                                                          may be monensin
                                                                          tolerant or
                                                                          resistant. Monensin
                                                                          may interfere with
                                                                          development of
                                                                          immunity to turkey
                                                                          coccidiosis.
                                                                          Bacitracin
                                                                          methylenedisalicyla
                                                                          te as provided by
                                                                          No. 054771 or
                                                                          069254 in Sec.
                                                                          510.600(c) of this
                                                                          chapter.

                                                  * * * * * * *
----------------------------------------------------------------------------------------------------------------

    (3) * * *

------------------------------------------------------------------------
                          Indications for
 Monensin in grams/ton          use          Limitations       Sponsor
------------------------------------------------------------------------
(i) 5 to 40............  Growing beef      Feed             016592
                          steers and        continuously    058198
                          heifers fed in    in complete
                          confinement for   feed at a rate
                          slaughter: For    of 50 to 480
                          improved feed     milligrams of
                          efficiency.       monensin per
                                            head per day.
                                            No additional
                                            improvement in
                                            feed
                                            efficiency has
                                            been shown
                                            from feeding
                                            monensin at
                                            levels greater
                                            than 30 grams
                                            per ton (360
                                            milligrams per
                                            head per day).
                                            See special
                                            labeling
                                            considerations
                                            in paragraph
                                            (d) of this
                                            section.
(ii) 10 to 40..........  Growing beef      Feed at a rate   016592
                          steers and        of 0.14 to      058198
                          heifers fed in    0.42 milligram
                          confinement for   per pound of
                          slaughter: For    body weight
                          prevention and    per day,
                          control of        depending upon
                          coccidiosis due   the severity
                          to Eimeria        of challenge,
                          bovis and E.      up to maximum
                          zuernii.          of 480
                                            milligrams per
                                            head per day.
                                            See special
                                            labeling
                                            considerations
                                            in paragraph
                                            (d) of this
                                            section.
(iii) 10 to 200........  Calves excluding  Feed at a rate   016592
                          veal calves:      of 0.14 to 1.0  058198
                          For prevention    milligram
                          and control of    monensin per
                          coccidiosis due   pound of body
                          to Eimeria        weight per
                          bovis and E.      day, depending
                          zuernii.          upon the
                                            severity of
                                            challenge, up
                                            to maximum of
                                            200 milligrams
                                            per head per
                                            day. See
                                            special
                                            labeling
                                            considerations
                                            in paragraph
                                            (d) of this
                                            section.
(iv) 11 to 22..........  Dairy cows: For   Feed             016592
                          increased milk    continuously    058198
                          production        to dry and
                          efficiency        lactating
                          (production of    dairy cows in
                          marketable        a total mixed
                          solids-           ration
                          corrected milk    (``complete
                          per unit of       feed''). See
                          feed intake).     special
                                            labeling
                                            considerations
                                            in paragraph
                                            (d) of this
                                            section.
(v) 11 to 400..........  Dairy cows: For   Feed             016592
                          increased milk    continuously    058198
                          production        to dry and
                          efficiency        lactating
                          (production of    dairy cows in
                          marketable        a component
                          solids-           feeding system
                          corrected milk    (including top
                          per unit of       dress). The
                          feed intake).     Type C
                                            medicated feed
                                            must be fed in
                                            a minimum of 1
                                            lb of feed to
                                            provide 185 to
                                            660 mg/head/
                                            day monensin
                                            to lactating
                                            cows or 115 to
                                            410 mg/head/
                                            day monensin
                                            to dry cows.
                                            See special
                                            labeling
                                            considerations
                                            in paragraph
                                            (d) of this
                                            section.

(vi) 15 to 400.........  Growing beef      For increased    016592
                          steers and        rate of weight  058198
                          heifers on        gain, feed at
                          pasture           a rate of 50
                          (stocker,         to 200
                          feeder, and       milligrams
                          slaughter) or     monensin per
                          in a dry lot      head per day
                          and replacement   in not less
                          beef and dairy    than 1 pound
                          heifers: For      of feed or,
                          increased rate    after the 5th
                          of weight gain,   day, feed at a
                          and for           rate of 400
                          prevention and    milligrams per
                          control of        head per day
                          coccidiosis due   every other
                          to Eimeria        day in not
                          bovis and E.      less than 2
                          zuernii.          pounds of
                                            feed. For
                                            prevention and
                                            control of
                                            coccidiosis,
                                            feed at a rate
                                            of 0.14 to
                                            0.42 milligram
                                            per pound of
                                            body weight
                                            per day,
                                            depending on
                                            severity of
                                            challenge, up
                                            to 200
                                            milligrams per
                                            head per day.
                                            During first 5
                                            days of
                                            feeding,
                                            cattle should
                                            receive no
                                            more than 100
                                            milligrams per
                                            day in not
                                            less than 1
                                            pound of feed.
                                            See special
                                            labeling
                                            considerations
                                            in paragraph
                                            (d) of this
                                            section.
(vii) 25 to 400........  Beef cows: For    Feed as          016592
                          improved feed     supplemental    058198
                          efficiency when   feed, either
                          receiving         hand-fed in a
                          supplemental      minimum of 1
                          feed, and for     pound of feed
                          the prevention    or mixed in a
                          and control of    total ration.
                          coccidiosis due   For improved
                          to Eimeria        feed
                          bovis and E.      efficiency,
                          zuernii.          feed
                                            continuously
                                            at a rate of
                                            50 to 200
                                            milligrams
                                            monensin per
                                            head per day.
                                            For prevention
                                            and control of
                                            coccidiosis,
                                            feed at a rate
                                            of 0.14 to
                                            0.42 milligram
                                            per pound of
                                            body weight
                                            per day,
                                            depending upon
                                            severity of
                                            challenge, up
                                            to a maximum
                                            of 200
                                            milligrams per
                                            head per day.
                                            During first 5
                                            days of
                                            feeding,
                                            cattle should
                                            receive no
                                            more than 100
                                            milligrams per
                                            head per day
                                            in not less
                                            than 1 pound
                                            of feed. See
                                            special
                                            labeling
                                            considerations
                                            in paragraph
                                            (d) of this
                                            section.
------------------------------------------------------------------------

    (4) * * *

----------------------------------------------------------------------------------------------------------------
            Monensin amount                 Indications for use          Limitations               Sponsor
----------------------------------------------------------------------------------------------------------------
(i) 150 milligrams per pound of protein- Growing beef steers and   Provide 50 to 200        012286
 mineral block (0.033%).                  heifers on pasture        milligrams of monensin
                                          (stocker, feeder, and     (0.34 to 1.33 pounds
                                          slaughter) and            of block) per head per
                                          replacement beef          day, at least 1 block
                                          heifers on pasture: For   per 10 to 12 head of
                                          increased rate of         cattle. Roughage must
                                          weight gain, and for      be available at all
                                          prevention and control    times. Do not allow
                                          of coccidiosis caused     animals access to
                                          by Eimeria bovis and E.   other protein blocks,
                                          zuernii in pasture        salt or mineral, while
                                          cattle which may          being fed this
                                          require supplemental      product. See paragraph
                                          feed.                     (d)(10)(i) of this
                                                                    section.
(ii) 175 milligrams per pound of         Growing beef steers and   Provide 40 to 200        017800
 protein-mineral block (0.038%).          heifers on pasture        milligrams of monensin
                                          (stocker, feeder, and     (0.25 to 1.13 pounds
                                          slaughter): For           or 4 to 18 ounces of
                                          increased rate of         block) per head per
                                          weight gain.              day, at least 1 block
                                                                    per 4 head of cattle.
                                                                    Do not allow cattle
                                                                    access to salt or