和牛杂交牛高强度重复超排效果的研究  

Studies on Effects of High-intensity and Repeated Superovulation in Wagyu-catalo

作　　者：韩伟[1,2] 余文莉[1,2] 李树静[1,2,3] 

机构地区：[1]河北农业大学动物科技学院,河北保定071001 [2]北京安伯胚胎生物技术中心,北京100107 [3]河北天和肉牛养殖有限公司,河北石家庄050051

出　　处：《中国畜牧兽医》2012年第5期170-173,共4页China Animal Husbandry & Veterinary Medicine

基　　金：现代农业产业技术体系建设专项资金资助(nycytx-38);科技部"十二五"农村领域国家科技计划课题(2011BAD19B02);科技部农业科技成果转化资金项目(2011GB2A210017)

摘　　要：为研究和牛杂交牛短期内重复超排效果,自2011年6月至2011年8月对100头和牛杂交牛连续进行了3次重复超排。结果发现,3次超排获得回收胚平均数分别为11.65±8.96、13.28±7.69、13.24±8.39枚;可用胚平均数分别为7.52±7.16、8.51±6.94和8.92±6.59枚。试验结果表明,对和牛杂交牛进行间隔为33d的连续3次超排,能够获得较好的超排效果,且个体差异是影响超排效果的主要因素;育成牛超排有效率稍高于经产牛(P>0.05),但可用胚平均数显著低于经产牛(P<0.05)。To study the repeated superovulation effect in brief period in wagyu-catalo, 100 head of wagyu-catalo were super- ovulated continuously for three times from Jun in 2011 to Aug in 2011. The three times superovulation obtained the mean of embryo recovered were 11. 65±8.96,13.28±7.69 and 13.24±8.39,respectively;the mean of usable embryos were 7.52± 7.16,8.51 ± 6.94 and 8.92±6.59, respectively. The experimental results indicated that a good result could be obtained by proceeding consecutively three times repeated superovulation in 33 d interval in wagyu-catalo. There were obvious individual differ- ences in the effect of superovulation. The superovulation efficiency of primiparous was a little better than multipara cow （P〈0.05） ,but the number of available embryos of muhiparous was better than primiparous cow notablely（P〈〈0.05）.

关 键 词：和牛杂交牛 重复超排 可用胚平均数 

分 类 号：S814.8[农业科学—畜牧学]