供体发情状况对波尔山羊超排效果的影响  

Influence of Donors' Estrus on the Effects of Superovulation in Boer Goat

作　　者：代相鹏[1] 侯放亮 王锋[1] 

机构地区：[1]南京农业大学动物胚胎工程技术中心,江苏南京210095 [2]陕西省家畜改良站,陕西泾阳713702

出　　处：《家畜生态学报》2006年第6期156-159,共4页Journal of Domestic Animal Ecology

基　　金：农业部农业结构调整重大技术研究专项(05-07-01B);南京市科技招标项目(2004ZB0107)

摘　　要：本试验以波尔山羊为对象，研究和讨论了PG-发情的时间、供体发情状况和配种次数等因素与供体超排效果之间的关系，同时对供体左、右卵巢的反应性和胚胎回收率进行了统计、比较。结果表明，缩短配种间隔，增加配种次数不能增加供体的可用胚数。供体发情对供体的超排效果有重要的体现，注射PG后37～48h发情的供体的超排效果最好，发情异常的供体的超排效果比重复超排的供体的超排效果差（P〉0．05）。超排供体左、右卵巢的超排反应性压回收率趋向一致，没有显著差异（P〉0．05）。In this trial, the relationship between superovulation effects and the interval of mate, time of PG to estrus and whether the estrus is normal were studied and discussed. The correlation of response to superovulation between left and right ovary was also compared. The results were as follows：the number of viable embryos did not increase when the interval of mate was decreased. Donors which had the interval from the treatment of PGF2α to estrus of 37-48h had the best superovulation result in viable embryos （mean of 16.50）. But donors which showed abnormal estrus had a worse result than that of donors showing normal estrus （P〉0.05）. The response to superovulation and mean recovery rate was not significantly different between the two varies or oviducts （P〉0.05）.

关 键 词：波尔山羊 超数排卵 黄体 卵泡 未受精卵 

分 类 号：S811.5[农业科学—畜牧学]