羔羊对不同营养水平饲料能量与有机物的消化率

Digestibility of OM and Energy of Complete Diet Pellets with Different Nutritional Levels in Fattening Lambs

将15只陶塞特(♂)与藏羊(♀)的杂交一代(3.5～4月龄)公羔,分为3组,每组5只,采用单因子设计研究了不同营养水平(NRC、0.9倍,NRC、0.8倍)全饲粮颗粒饲料的能量和有机物消化率。结果表明:B、C组的饲粮采食量、有机物质和能量食入量显著高于A组(P<0.01);B、C组表观有机物质和能量消化量有高于A组的趋势;A组有机物质和能量消化率均高于B、C组,B组也有高于C组的趋势。

Fifteen crossbred lambs of dorset(♂)×Tibetan sheep (♀)were divided into three groups.Lambs of each group was fed one of Complet e Diet Pellets of different nutritional levels(0.9X and0.8X level recomm ended by NRC at DE and CP).The results indicated:The intakes of diet,OM and energy in group B and C were higher than that of the group A(P<0.01).The re were the tendency that apparent absorpition of OM and energy for group B and group C were better than that of group A.It noted the trends that apparent di gestibility of OM and energy in group A was higher than those of group B and gro up C,and that of group B was alos better than that of group C.