Friendship R M, Bosu W T, King G J
Can J Comp Med. 1982 Oct;46(4):410-3.
The effects of estradiol benzoate plus human chorionic gonadotrophin administered on the day of weaning on the reproductive performance in sows was studied. The treatment advanced the onset of estrus but the duration of estrus was slightly prolonged. Breeding on the post-weaning estrus was associated with poor pregnancy rate and smaller litters. The treatment did not cause permanent damage to the reproductive tract as the reproductive performance of the treated sows after subsequent breedings were unaffected. The possible causes of the poor fertility in the estradiol benzoate plus human chorionic gonadotrophin treated sows are discussed.
研究了在断奶当天注射苯甲酸雌二醇与人绒毛膜促性腺激素对母猪繁殖性能的影响。该处理使发情开始时间提前，但发情持续时间略有延长。在断奶后发情期配种的妊娠率较低且产仔数较少。由于后续配种时经处理母猪的繁殖性能未受影响，所以该处理未对生殖道造成永久性损伤。文中讨论了苯甲酸雌二醇与人绒毛膜促性腺激素处理的母猪繁殖力低下的可能原因。
