 Preserving legumes, as silage, is a good way to provide an on-farm source of home-grown energy and protein, offers advantages over traditional haymaking, being less weather-dependent, and allows a high quality of forage during the harvesting period.In particular, wrapped silage bales of sainfoin have great potential in animal nutrition and can be used by farmers, as found that condensed tannin effects were not reduced by this mode of preservation.