Taljaard T L, Terblanche S J, Bertschinger H J, Van Vuuren L J
Department of Veterinary Physiology, Faculty of Veterinary Science, Medical University of Southern Africa, Medunsa.
J S Afr Vet Assoc. 1991 Jun;62(2):60-1.
This investigation was designed to determine whether or not the technique of intrauterine insemination affects the length of the subsequent oestrous cycle. Dorper ewes (n = 31) were divided into treatment and control groups. All the ewes were synchronised using 40 mg fluorogestone acetate intravaginal sponges for 14 d and 300 IU pregnant mare serum gonadotrophin on the day of sponge removal. A standard semen diluent was deposited laparoscopically in each uterine horn of ewes in the treatment group. Teaser rams were used to detect oestrus. Progesterone profiles were used to confirm oestrus. The mean oestrous cycle length of 17.83 +/- 0.69 d for the group in which the diluent was deposited by laparoscopy did not differ significantly (P less than 0.1) from the 18.36 +/- 2.11 d of the control group. The technique of laparoscopic insemination did not influence the length of subsequent oestrous cycles.
本研究旨在确定子宫内授精技术是否会影响随后发情周期的时长。将31只杜泊母羊分为治疗组和对照组。所有母羊均使用40毫克醋酸氟孕酮阴道海绵栓同步发情14天，并在取出海绵栓当天注射300国际单位孕马血清促性腺激素。在治疗组母羊的每个子宫角内通过腹腔镜注入标准精液稀释液。使用试情公羊检测发情情况。通过孕酮水平曲线来确认发情。通过腹腔镜注入稀释液的组，其平均发情周期时长为17.83±0.69天，与对照组的18.36±2.11天相比，差异不显著（P＜0.1）。腹腔镜授精技术并未影响随后发情周期的时长。
