[acidfree:87 style=image align=right] Sheep are hardy, resourceful ruminant animals that live and produce for several years when adequately fed. Being ruminants, they convert forages, forbs (weeds) and browse into meat, milk and wool. Either by artificial or natural selection, certain genotypes produce more effectively in one environment than in others. The environment of temperature and rainfall is not provided by man. Management, however, is. Utilizing feedstuffs that are readily available and providing nutrition for sheep that is the least costly is how money is made in a sheep operation.