Coulson A, Noakes D E, Cockrill T, Hamer J
Vet Rec. 1979 Nov 10;105(19):440-2. doi: 10.1136/vr.105.19.440.
The plasma levels of progesterone and luteinising hormone (LH) were monitored in a group of cattle after pretreatment with two injections of 25 mg dinoprost. Close groupings of preovulatory LH peaks were observed and the possible significance of this is discussed. Based on the findings of this study, supporting evidence is provided for the timing of insemination after injection of cattle which have been synchronised for oestrus with dinoprost.
对一组牛在预先注射两次25毫克氯前列醇进行预处理后，监测其孕酮和促黄体生成素（LH）的血浆水平。观察到排卵前促黄体生成素峰值的紧密分组，并讨论了其可能的意义。基于本研究的结果，为已用氯前列醇同步发情的牛注射后输精的时间提供了支持证据。
