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zuo xian hong niu tong qi fa qing yu chao shu pai luan yan jiu
Author(s): 
Pages: 5-7
Year: Issue:  10
Journal: Henan Journal of Animal Husbandry and Veterinary Medicine

Keyword:  同期发情超数排卵黄体胚胎郏县红牛;
Abstract: 为探索有效、稳定的郏县红牛同期发情和超数排卵程序,分别采用肌肉注射PG法、CIDR+PG法对郏县红牛进行同期发情处理,应用FSH连续4d递减法肌肉注射对郏县红牛进行超数排卵处理.PG法和CIDR+PG法分别处理供体牛10头次,同期发情率分别为40%和100%,差异显著(P<0.05);FSH法共有效超排供体牛10头次,头均黄体总数(7.90±4.72)个,头均获胚数(2.80±2.44)枚,其中3头次采用加拿大进口FSH,7头次采用国产FSH,头均黄体总数分别为(14.00±1.00)个、(5.29±2.56)个,差异显著(P<0.05),头均获胚数分别为(2.33±2.08)枚、(3.00±2.71)枚,差异不显著(P>0.05).结果:PG法处理郏县红牛供体牛的同情发情效果不如CIDR+PG法效果明显;对郏县红牛进行超排处理中,使用进口FSH所得黄体总数明显多于国产FSH,但二者的头均获胚数并没有显著差异.以上结果表明,CIDR+PG法处理比PG法处理郏县红牛供体牛的同期发情效果显著;对郏县红牛应用FSH连续4d递减法肌肉注射进行超排是可行的.
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