Sixty hybrid Yorkshire-Landrace penned sows, 30 with eutocic farrowing and 30 experiencing a dystocic parturition, were studied to evaluate the obstetric and neonatal outcomes to low doses of oxytocin administered at advanced stages of parturition. Animals in each group were randomly subdivided into 2 subgroups: 15 eutocic and 15 dystocic sows received oxytocin 0.083 IU/kg (equivalent to 1 IU/12 kg body weight), administered intramuscularly after the delivery of the 5th piglet; the other 15 eutocic and 15 dystocic sows received saline solution intramuscularly at the same time. Oxytocin decreased the number of intrapartum deaths by approximately 50% (P = 0.002). No piglet was born dead from the saline- and oxytocin-treated eutocic sows. The highest viability score was observed among piglets born to eutocic sows treated with oxytocin. In summary, this dose schedule would help to decrease the number of stillbirths in both eutocic and dystocic farrowing sows.
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机译：研究了六十只杂种约克夏-兰德斯（Yorkshire-Landrace）杂种母猪，其中有30头具有自产性产仔，有30头经历了难产性分娩，以评估在分娩后期使用低剂量催产素对产科和新生儿的影响。每组动物被随机分为2个亚组：15只自交系和15条难育母猪接受催产素0.083 IU / kg（相当于1 IU / 12 kg体重），在第5头仔猪分娩后进行肌肉注射。另外15例自体和15例难育母猪同时肌肉注射盐溶液。催产素使产时死亡人数减少了约50％（P = 0.002）。盐水和催产素处理的自交系母猪没有仔猪死亡。在用催产素治疗的自交系母猪出生的仔猪中观察到最高的生存力得分。总而言之，该剂量表将有助于减少自产和难产分娩母猪的死产数量。
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