6 pregnant sheep and 4 nongravid sheep. by Feeding test, digestion and metabolism experiment and gas metabolism experimen were wsed to study the metabolic rule for pregnant of fat - tail sheep.

• 选用同期怀孕的大尾寒羊6只,空怀羊4只做对照,采用饲养试验,消化代谢试验和气体代谢试验的方法,研究大尾寒羊妊娠期能量的代谢。