高脂肪日粮对早期断奶羔羊断奶前后能量代谢和屠宰性能的影响

李文娟,陶慧,张乃锋,马涛,刁其玉

Effects of High-Fat Diet on Energy Metabolism and Slaughter Performance of Early-Weaning Lambs

LI WenJuan,TAO Hui,ZHANG NaiFeng,MA Tao,DIAO QiYu

表4 高脂肪日粮对早期断奶羔羊屠宰性能的影响（60和120日龄）

Table 4 Effect of high-fat diet on slaughter performance of early weaning lambs (60 and 120 days of age)

项目 Items 组别Groups SEM P NF HF 60日龄 60 days of age 宰前活重LBW(kg) 9.58 11.57 1.542 0.096 空体重EBW(kg) 7.46 8.58 0.861 0.238 胴体重HCW(kg) 4.33b 5.41a 0.424 0.048 屠宰率Dressing percentage(%) 44.83 46.69 1.931 0.277 GR值Grade rule(mm) 1.12 1.21 0.043 0.432 眼肌面积Rib eye area(cm2) 8.43b 10.29a 0.261 0.001 120日龄 120 days of age 宰前活重LBW(kg) 30.00b 32.72a 1.739 0.028 空体重EBW(kg) 21.19b 23.19a 0.732 0.025 胴体重HCW(kg) 14.17b 15.65a 1.249 0.022 屠宰率Dressing percentage(%) 47.05 47.72 1.210 0.207 GR值Grade rule(mm) 2.33 2.39 0.052 0.121 眼肌面积Rib eye area(cm2) 19.11 20.44 0.759 0.119