弗莱维赫牛在北京地区超数排卵效果初探  

Superovulation of Fleckvieh Cattle in Beijing

作　　者：朱伯阳 李卓琳[1] 田凤[1] 姬向东[1] 郭勇[1] 倪和民[1] 

机构地区：[1]北京农学院动物科学技术学院,北京102206

出　　处：《中国农学通报》2017年第14期125-129,共5页Chinese Agricultural Science Bulletin

基　　金：北京市农业科技项目"安格斯等肉牛品种种质资源扩繁技术示范与推广"(20160130)

摘　　要：为了充分挖掘进口乳肉兼用牛弗莱维赫的繁殖潜力,探寻在北京地区饲养的乳肉兼用牛超数排卵的可行性方案,实现快速建立核心群的目标,在春季(3月份)和秋季(9月份)对同一牛群进行2次超排处理,2次超排程序相同,超排用药量主要依据其体重与营养状况。结果表明:春季的头均可用胚数和妊娠率分别为(5.33±1.51)枚、81.82%,秋季的头均可用胚数和妊娠率分别为(6.00±1.83)枚、69.57%,二者之间差异不显著(P>0.05)。经产牛在春季、秋季的头均可用胚数分别为(6.50±2.21)、(5.33±0.58)枚,二者之间差异不显著(P>0.05)。育成牛在春季、秋季头均可用胚胎数分别为(5.75±1.26)、(4.50±2.38)枚,二者之间差异不显著(P>0.05)。该试验方案可用于北京地区不同胎次弗莱维赫牛的超数排卵,超排季节可选春季或秋季。To fully explore the reproductive potential of import dual-purpose cattle Fleckvieh, determine its feasible scheme of superovulation in Beijing and quickly establish a core group of Fleckvieh, two superovulation experiments were conducted in spring （Match） and autumn （September） respectively. The superovulation doses were based on cattles＇ weight and nutritional status, and the proceedings of the two experiments were the same. The results showed that the average number of available embryos per female （5.33±1.51） and pregnancy rate （81.82%） in spring had no significant difference compared with those in autumn （6.00 ± 1.83, 69.57% ） （P〉0.05）. There were no significant difference on the average number of available embryos per muhiparity between spring （6.50±2.21） and autumn （5.33±0.58） （P〉0.05）. And there were also no significant difference on the average number of available embryos per nulliparity between spring （5.75 ± 1.26） and autumn （4.50 ± 2.38） （P〉0.05）. The results indicated that this scheme could be used to conduct superovulation of Fleckvieh at different parities both in spring and autumn in Beijing.

关 键 词：弗莱维赫牛 胚胎 超数排卵 

分 类 号：S823.94[农业科学—畜牧学]