不同季节对荷斯坦青年母牛超排效果的影响  

Effect of Different Seasons on Superovulation of Holstein Heifers

作　　者：李强 张光伟 刘水涛 肖锐 牛志宏 张建军 张健 

机构地区：[1]新疆动物胚胎工程技术研究中心,呼图壁831203

出　　处：《中国奶牛》2013年第1期20-22,共3页China Dairy Cattle

摘　　要：本试验对895头荷斯坦青年母牛的超排效果进行比较,结果表明,春季的超排效果最好,平均可用胚胎数最多,但与冬季相比差异不显著(P>0.05),与夏季和秋季相比分别差异极显著(P<0.01)和显著(P<0.05)。春季和冬季的囊胚比例高于夏季和秋季。该结果说明,季节对奶牛超排效果和胚胎发育均有不同程度的影响,因此,可根据不同季节母牛卵巢的反应和排卵类型对超排方案进行相应的调整。Comparisons between 895 Holstein heifers superovulated in four seasons show that the best superovulation results and most average good embryos are in spring, but no significant difference with Winter （P〈0.05）. If compared with summer and autumn, it is a significant difference （P〈0.01 and P〈0.05, respectively）. In spring and winter, the percentage of blastocysts is higher that that of summer and autumn. In conclusiom four seasons have a different effect on superovulation and embryo development stages. So an efficient superovulation program can be worked out in the different seasons according to the different ovary response of animals to superovulation and ovulation types.

关 键 词：季节 荷斯坦青年母牛 超排 

分 类 号：S823.3[农业科学—畜牧学]