奶孕酮放射免疫测定改善奶牛受胎力  

USE OF MILK PROGESTERONE RIA TO IMPROVE FERTILITY IN DAIRY COWS

作　　者：蔡正华[1] 卢雁平 程金华[1] 宣柏华 方雁军 王运亨 郑明国 张云 孙永芳 

机构地区：[1]中国农业科学院畜牧研究所 [2]北京奶牛育种中心良种场 [3]北京西郊农场奶牛公司

出　　处：《核农学报》1998年第3期179-182,共4页Journal of Nuclear Agricultural Sciences

摘　　要：对北京郊区５个奶牛场的１２２４头繁殖母牛进行了放免测定。从产犊后第１次配种开始，每一发情周期采集３个奶样（０ｄ、输精后１０～１２ｄ和２２～２４ｄ），取回实验室用放免法测出奶样中孕酮浓度，判断出母牛的生理状态：妊娠（５２０％）、未受精（２２７％）、卵巢静止（５８％）、持久黄体（３８％）、配种不适时（７１％）或周期不正常（８６％）等。将测定结果和判断意见及时反馈给奶牛场的配种员和兽医，使他们据此并对照直肠检查结果作出正确诊断，从而采取措施，使母牛尽早受胎。本试验共监测了１８０１个发情周期。Milk samples were collected on 0, 10～12 and 22～24 days after service from 1224 dairy cows in 5 dairy farms. Progesterone concentration were examined by RIA. The reproductive status of the cows could be identified: pregnant(52 0%), nonfertilisation(22 7%), inactive ovary (5 8%), persistent CL, luteal cyst (3 8%),AI at inappropriate time (during luteal phase)(7 1%),abnormal oestrus cycles(8 6%),AI in pregnant animals etc. The examination results and our judgement were sent back to AI technician and veterinary of dairy farms as early as possible so that they could use these information (comparing with the rectal palpation results) to get correct diagnoses and to adopt appropriate remedial measures. So far 1801 oestrus cycles has been monitored.

关 键 词：奶牛 人工授精 孕酮 放免测定 繁殖状态 

分 类 号：S823.91[农业科学—畜牧学]