中国畜禽种业2025，Vol.21Issue(10)：87-94,8.
不同剩余采食量对澳杜湖羊公羔屠宰性状、体组成和脂肪沉积的影响研究
Study on Different Residual Feed Intake and Slaughter Performance of AoDuhu Male Lambs
摘要
Abstract
The hybrid generation of Dorper sheep and Hu sheep was used as the female parent,and Australian white sheep was used as the male parent for hybridization.A total of 99 Australian white sheep and Dorper-Hu sheep ternary hybrid F1 male lambs(80-180 days old)were selected for the determination of growth and development traits and feed efficiency traits during the fattening period.At 180 days of age,three groups of extreme values of residual feed intake(high,medium and low)were selected,and 12 lambs in each group were slaughtered to collect slaughter traits data.The results showed that the heart weight,liver weight,spleen weight and stomach weight of sheep with high feed efficiency(Low-RFI group)were lighter.The results showed that the basal metabolic rate of sheep with high feed efficiency(Low-RFI group)was lower than that of sheep with low feed efficiency(High-RFI group).Significant increases in perirenal and mesenteric fat weights were observed in the High-RFI group relative to the Low-RFI group(P＜0.01).Furthermore,mesenteric fat displayed a positive correlation with RFI(P＜0.05).The sheep with low feed efficiency(High-RFI group)had more fat deposition in the body,and the sheep with high feed efficiency(Low-RFI group)had less fat deposition in the body.In this study,it was concluded that the fat deposition in the High-RFI group was more than that in the Low-RFI group,and there were different significant correlations between slaughter traits,fat deposition and body composition in different RFI groups.关键词
饲料效率/剩余采食量/屠宰性状/相关性/澳杜湖羊三元杂交F1代Key words
Feed efficiency/Residual feed intake/Slaughter performance/Correlation/Aoduhu sheep ternary hybrid F1 generation分类
农业科技引用本文复制引用
王博,吴伟伟,哈尼克孜·吐拉甫,黄俊成,王许,林长春,董桂花,闫娜娜,李鹏飞,依明·苏来曼..不同剩余采食量对澳杜湖羊公羔屠宰性状、体组成和脂肪沉积的影响研究[J].中国畜禽种业,2025,21(10):87-94,8.基金项目
国家科技重大专项项目高效高繁抗病肉羊新品种培育(2022ZD040130205) （2022ZD040130205）
中央引导地方科技发展专项资金项目(ZYYD2023B14). （ZYYD2023B14）
