McCaughey W J, Martin J B
Vet Rec. 1980 Feb 9;106(6):119-21. doi: 10.1136/vr.106.6.119.
Bilateral partial epididymectomy was performed on 23 bulls. These bulls were used to detect oestrus under two different management systems. The results obtained were compared with simultaneous plasma progesterone assays, and indicated that teaser bulls can provide accurate detection of oestrus.
对23头公牛实施了双侧部分附睾切除术。这些公牛被用于在两种不同管理系统下检测发情情况。将所得结果与同时进行的血浆孕酮检测结果进行比较，结果表明试情公牛能够准确检测出发情。
