Hühn R, König I, Hühn U, Elze K, Hagner H J
Arch Exp Veterinarmed. 1977;31(6):921-4.
An experiment was applied to ovulation-synchronised gilts and old sows. Mean values of pregnancy time were almost one and the same. Variations between the 111th and 117th days were exhibited within the control group. The test animals, however, farrowed on the 109th, 110th, and 111th days within spans of three days (113th to 115th day of pregnancy), following intramuscular injection of 75 mg DXMS. Intramuscular injection of 5 mg prostaglandin F2alpha on the 112th day of pregnancy triggered parturition within 25-36 hours in ten of 13 treated sows, whereas 19 of 20 sows gave birth within 27.7 +/- 5.1 hours in response to injection of 7.5 mg PGF2alpha.
对排卵同步的后备母猪和经产老母猪进行了一项实验。妊娠时间的平均值几乎相同。对照组在第111天至117天之间出现了变化。然而，在肌肉注射75毫克地塞米松后，试验动物在三天内（妊娠第113天至115天）于第109天、第110天和第111天分娩。在妊娠第112天肌肉注射5毫克前列腺素F2α后，13头经治疗母猪中有10头在25 - 36小时内分娩，而注射7.5毫克前列腺素F2α后，20头母猪中有19头在27.7±5.1小时内分娩。
