 The importance of the cattle export industry to the Island can be illustrated when, in the three years from 1830, some 5,756 head of livestock were exported.Over a hundred years later, in 1948, as trade resumed following the end of World War II, some 2,041 animals were exported from the Island which, at that time, had a population of 8,973 head of cattle with 2,404 heifer calves being registered in that year.As importing countries have developed their own national herds to suit their particular conditions the export of cattle has declined in recent years, however, top bloodlines from the Island herd are still exported mainly in the form of frozen bull semen.