Fifteen Dorper and Thin-Tailed Han lambs crossbred F1 lambs were selected. The ewes were randomly allocated to 3 groups and 5 ewes per group. The ewes were offered a mixture diet for ad libitum, or 70% or 40% of the ad libitum intake for 52 d. The results showed that the growth performance and intake of dry matter(DM), nitrogen(N), neutral detergent fiber(NDF) and acid detergent fiber(ADF) of ewes influenced significantly with decreasing levels of feed intake(P<0.01), but the apparent digestibility of dry m...
2.吉林省农业科学院畜牧分院,吉林公主岭136100)Effect of different feeding levels on substance and energy metabolismof crossbred ewes/WEI Bingdong1,2,DIAO Qiyu1,CHEN Qun2,YANG Huaming2,QIU Yulang2,WANG Shiqin1,LI Lin2(1.Key Laboratory of Feed Biotechnology o