畜牧与兽医2025，Vol.57Issue(5)：9-14,6.
澳洲白羊与杜湖羊三元杂交F1代澳杜湖公羔育肥期生长发育与饲料效率的研究
Growth and development and feed efficiency of Australian white sheep and Duhu sheep ternary hybrid F1 generation of AuDuhu male lambs in fattening period
摘要
Abstract
The aim of this study was to explore the relationship between growth and development and feed efficiency of Australian white sheep and Duhu sheep ternary hybrid F1 generation(AuDuhu)male lamb in the fattening period.Taking the first generation of Dorper sheep and Hu sheep as the female parent and Australian white sheep as the male parent for hybridization,99 AuDuhu male lambs(80-180 days old)were selected to determine the growth and development traits and feed efficiency traits during the fattening.The results were as follows:The body weight of the AuDuhu male lambs showed an increasing trend from 80 to 180 days of age.The statistical analysis showed that there was a significant positive correlation between the body weight and the body size index at different days of age in the AuDuhu male lambs(P＜0.05).The daily gain of the AuDuhu male lambs was(0.30±0.03)kg,their daily feed intake was(1.91±0.16)kg,their residual feed intake was(0.00±0.14)kg,and their feed conversion rate was 5.41±0.67.These results showed that the growth peak of the AuDuhu male lambs was at 120-180 days of age.There was a significant positive correlation between their body weight and body size index,and the corre-lation coefficient between their body weight and chest circumference was the highest.The remaining feed intake was related to the feed effi-ciency traits but not to the growth traits,while the feed conversion rate was significantly correlated with the growth traits and feed efficiency traits.关键词
生长发育/饲料效率/相关性/澳杜湖羊三元杂交F1代Key words
growth and development/feed efficiency/correlation/ternary hybrid F1 generation AuDuhu sheep分类
畜牧业引用本文复制引用
王博,哈尼克孜·吐拉甫,黄俊成,王许,李鹏飞,吴伟伟,依明·苏来曼..澳洲白羊与杜湖羊三元杂交F1代澳杜湖公羔育肥期生长发育与饲料效率的研究[J].畜牧与兽医,2025,57(5):9-14,6.基金项目
科技2030生物育种重大专项(2022ZD040130205) （2022ZD040130205）
