摘要
试验以小尾寒羊做母本与国外引进肉羊品种及滩羊杂交,结果显示为除体高外,杂种羊在初生体重、体长、胸围和管围等性状均显著高于小尾寒羊(P<0.01);杂种后代均表现出一定的杂种优势,初生体重的杂种优势更明显,但没有超越最优亲本的现象。杜寒杂种的初生重、初生体尺及其相应的杂种优势率均最高,是一种比较理想的杂交组合。
This experiment makes the female Small-tail sheep hybrid by overseas introduction meat sheep and tan sheep.The results show： Besides body high, the hybrid sheep in the birth weight, the body length , the chest girth and the ennon girth and so on characters are higher than Small-tail sheep signifcently （ P 〈0.01 ）; The hybrid descent displays certain heterosis, the birth weight＇s heterosis is more obvious, but does not have surpass the most superior parent phenomenon. The Du-Han hybrid birth weight, the birth body size and the heterosis rate is highest, and is one kind of ideal hybridized combination.
出处
《养殖技术顾问》
2009年第7期137-139,共3页
Technical Advisor for Animal Husbandry
关键词
小尾寒羊
杂交效果
杂种优势
Small-tail sheep
Heterotie Effect
Heterotie Vigor
