华北农学报2011，Vol.26Issue(z1)：48-51,4.
杜泊绵羊与小尾寒羊杂交自群繁育后代生产性能研究
Study on Performance of Inter-mating Breed Offspring from Small Tail Han Sheep Associated with Dorper
摘要
Abstract
The study of hybrid breeding was conducted through Dorper ram associated with Small Tail Han Sheep ewe in this paper. The early gain weight, growth and reproduction performance of inter-mating breed offspring were measured. The results showed that the third month body weight of ram and ewe was 27. 36 kg and 22. 88 kg re spectively, which was 6.98 kg and 7.20 kg more than those from Small Tail Han Sheep respectively. Three month daily gain was 272. 56 g and 227. 44 g, which was 78. 67 g and 80. 77 g more than those from Small Tail Han Sheep respectively. The Sixth month body weight was 48. 46 kg and 40. 56 kg, which was 13. 9 kg and 15. 53 kg more than those from Small Tail Han Sheep respectively. Six month daily gain was 253.50 g and 211. 94 g, which was 75. 67 g and 86.67 g more than those from Small Tail Han Sheep respectively. Chest breadth and chest circumference, thigh circumference of the third,sixth month and adult inter-mating breed offspring were more than Small Tail Han Sheep significantly. There were more oestrus proportion of inter-mating breed offspring in first half year than second half year. Results indicated that early gain weight and mutton shape of inter-mating breed offspring were both better than Small Tail Han Sheep. Litter size of inter-mating breed offspring was 1. 76, which improved than Dorper but oestrus seasonal.关键词
肉羊/自群繁育后代/生产性能/日增重Key words
Mutton sheep/Inter-mating breed offspring/Production performance/Daily gain分类
农业科技引用本文复制引用
敦伟涛,陈晓勇,田树军,孙洪新,董玉玲,谭志伟,李盼霞,刘桐令..杜泊绵羊与小尾寒羊杂交自群繁育后代生产性能研究[J].华北农学报,2011,26(z1):48-51,4.基金项目
河北省科技支撑计划项目子课题(No.06220402D-3) （No.06220402D-3）
河北省农业科技成果转化资金项目(No.11220139D) （No.11220139D）
河北省属公益科研院所项目(No.11240413D) （No.11240413D）
