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优质肉羊超数排卵优化组合方案应用研究 被引量:1

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摘要 试验旨在探索优化超排方案,提高肉羊胚胎生产效率。在新疆哈密市牧祥合作社用FSH+PG递减4 d 8针注射法处理供体羊44只,冲胚数503枚、只均冲胚数11.43枚±0.79枚,可用胚数394枚、只均可用胚数8.95枚±0.95枚;同样的方法用FSH+PG+PMSG处理供体45只,冲胚数608枚、只均冲胚数13.51枚±1.04枚,可用胚数435枚、只均可用胚数9.67枚±1.06枚,差异均极显著(P<0.01);对39只供体羊分别采用开膣器输精+自然交配+开膣器输精和自然本交方法配种,重复超排跟踪统计,重复超排和不同授精方式冲胚数无明显差异(P>0.05);选用自然发情与人工诱情法处理,自然发情组可用胚胎数289枚,诱情组可用胚胎数221枚,两者差异极显著(P<0.01);供体羊在不同营养状态下超排处理,营养良好者与营养中等者只均回收胚胎数分别为14.4枚和8.52枚,只均可用胚胎平均数分别为7.0枚和5.25枚,差异也极显著(P<0.01)。该研究优化了绵羊超排方法和配种授精方案,初步建立了高效胚胎移植体系。
出处 《中国草食动物科学》 CAS 2017年第3期15-17,共3页 China Herbivore Science
基金 哈密地区科技兴农项目[哈地党农字(2015)6号]
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