Kostov L, Vasilev G, Uzunov S
Vet Med Nauki. 1985;22(3):37-42.
Studied were certain methods for programming the estrus and fixing the optimal term for the insemination of sheep. A record was kept of the changes taking place in the genital apparatus in various periods of time following the use of hormonal preparations during the anestral period. The fertility of sheep was also taken into consideration both after the first treatment with serum gonadotropin and after the two-fold programmed insemination at a 16-day interval with regard to the total fertility. It was shown that the optimal time for programmed insemination of sheep was between the 36th and the 56th hour after the three-fold injection with Prolosan at 12-hour intervals so far as periods other than the breeding season were concerned. Fertility at two-fold injection rated at 121 per cent, and conception--at 78.2 per cent.
对绵羊发情进行程序设定和确定最佳输精期的某些方法进行了研究。记录了在乏情期使用激素制剂后不同时间段生殖器官发生的变化。还考虑了首次用血清促性腺激素处理后以及在16天间隔进行两次程序输精后的绵羊繁殖力与总繁殖力的情况。结果表明，就繁殖季节以外的时期而言，绵羊程序输精的最佳时间是每隔12小时三次注射普罗洛桑后的第36至56小时。两次注射后的繁殖力为121%，受孕率为78.2%。
