一项关于直肠触诊、腹腔镜检查、剖腹术和卵巢解剖在评估孕马血清促性腺激素（PMSG）超排奶牛卵巢反应方面等效性的研究。
A study of the equivalence between rectal palpation, laparoscopy, laparotomy and ovarian dissection for evaluation of the ovarian response of PMSG-superovulated cows.
作者信息
Guay P, Bedoya M
出版信息
Can Vet J. 1981 Nov;22(11):353-5.
The PMSG-superovulatory response was determined by ovarian dissection in 20 cows and compared with estimates made by laparoscopy laparotomy and rectal palpation at day 7 of the induced estrus. The corpora lutea count made transrectally seriously underestimated real corpora lutea numbers when more than nine corpora lutea were present. Rectal palpation failed to correctly identify the number of follicles >/= 10 mm when more than four follicles were present. After ovarian dissection, laparotomy was the most constant and accurate method to obtain the number of ovulations, followed by laparoscopy. The excessive weight and the large size of the ovaries associated with the presence of large unovulated luteinized follicles were often responsible for the erroneous estimates of the ovulation rate by rectal palpation.
通过对20头母牛进行卵巢解剖来确定孕马血清促性腺激素（PMSG）的超排卵反应，并将其与诱导发情第7天通过腹腔镜检查、剖腹术和直肠触诊所做的估计进行比较。当黄体数量超过9个时，经直肠进行的黄体计数严重低估了实际黄体数量。当卵泡数量超过4个时，直肠触诊无法正确识别直径≥10毫米的卵泡数量。卵巢解剖后，剖腹术是获取排卵数量最稳定且准确的方法，其次是腹腔镜检查。与大量未排卵的黄素化卵泡相关的卵巢过重和过大，常常导致直肠触诊对排卵率的错误估计。
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