摘要
采用随机抽样的方法,对甘肃省永昌县引进的肉羊品种无角陶赛特杂交改良蒙古羊的杂种F1(DMF1)、F2(DMF2)和F3(DMF3)在不同年龄阶段通过测定体重体尺指标,以当地蒙古羊(M)为对照进杂交效果的分析。结果表明杂种后代的主要生产性能均优于蒙古羊,无角陶赛特杂交改良蒙古羊杂交效果显著,在条件允许的情况下可以对当地蒙古羊进行大规模杂交,尤其是高代杂交经济效应更为显著。
By random sampling, the F1, Fz and F3 which were crossbred of the introduced meat sheep Poll Dorset and Mongolian sheep were measured at different ages to determine their body indexes in order to analyze the crossbred effect in contrast to the local mongolian sheep. The result shows that the major productive rorformances of the crossbreed are all superior to the Mongolian sheep, which indicates the marked crossbred effect. Condition permitting, the local Mongolian sheep can be crossbred in large scale, particularly the economic effect for high generation crossbred is most significant.
出处
《家畜生态学报》
2008年第1期49-52,共4页
Journal of Domestic Animal Ecology
基金
甘肃省“十五”科技攻关项目(编号:GS012-A41-042)
关键词
无角陶赛特
蒙古羊
杂交效果
Poll Dorset Sheep
Mongolian Sheep
crossbred effect
