中国草食动物科学2012，Vol.32Issue(4)：32-34,3.
简阳大耳羊繁殖性能研究
Reproductive Performance of Jianyang Daer Goat
摘要
Abstract
The systemic data in generation selection were used to study the reproductive performance of Jianyang Daer goat. The results showed that the estrous cycle of Jianyang Daer goat was 20.66 d, the estrous duration was 48.52 h, and the pregnancy duration was 148.76 d. The ewe could breed yearly,and abided by the rule of mating in spring and yeaning in fall,or mating in fall and yeaning in spring. The lambing rates were 153.51 % and 242.41 % for primiparity and multiparity respectively. The yearly average lambing was 1.75 fetuses. The birth weights were 3.10 kg for male and 2.95 kg for female respectively. It showed that the goat possessed the characteristics of multiplets, empathema and yean perennial.The reproductive performance was fine.关键词
简阳大耳羊/繁殖性能/产羔率Key words
Jianyang Daer goat/ reproductive performance/ lambing rate分类
农业科技引用本文复制引用
尹洛蓉,范景胜,熊朝瑞,王永,龚华斌,郑水明,陈天宝,俄木曲者,张红平..简阳大耳羊繁殖性能研究[J].中国草食动物科学,2012,32(4):32-34,3.基金项目
四川省畜禽育种攻关项目 （）
四川省科技支撑计划(2011NZ0003) （2011NZ0003）
