摘要
作者进行了29只(窝)德系安哥拉生长幼兔和38只妊娠母兔的比较屠宰试验以及相应的消化代谢试验后得出:①生长兔每克增重的净蛋白质(NCP,克/克)和净能(NE,千卡/克),可用剪毛后活重(W,克)估测:NCP=0.095W^(0.0902),NE=O.569W^(0.1721)。②妊娠母兔每公斤代谢体重维持的消化能需要量为114.93千卡,可消化粗蛋白质4.68克。消化能用于产毛、胎儿和母体中能量沉积的效率分别为0.190、0.278、0.747;可消化粗蛋白质用于产毛、胎儿和母体中蛋白质沉积的效率分别为0.432、0.567、0.853。③兔体蛋白质和脂肪的热价分别为5.747、9.266千克/卡。
Comparative slaughter and digestive experiments were carried out with 29 grow- tag and 38 pregnant Angora rabbits.By regression analysis,the results showed: (1)the protein(NCP)and energy(NE)contents per gram live weight gain of the growing rabbits could be calculated using following equations: NCP(g/g)=0.095W^(0.0902),NE(Kcal/g)=0.569W^(0.1721)where,W is the live weight after shearing of the rabbits。(2)for the pregnant does,the digest- ible energy and digested protein requirements for maintenance were 114.93 Kcal and 4.68g per kilogram of the metabolic live weight.The utilization efficienci- es of digestible energy were 0.190,0.278 and 0.747 respectively for wool product ion,foetus growth and body gain of the doe,and the efficieneies of digested pr- otein 0.432,0.567 and 0.853 respectively.(3)the heat values of the protein and fat of the rabbit body were 5.747 and 9.266 Kcal/g respectively.
