Acta Agriculturae Zhejiangensis ›› 2022, Vol. 34 ›› Issue (5): 915-922.DOI: 10.3969/j.issn.1004-1524.2022.05.05

• Animal Science • Previous Articles     Next Articles

Effects of cloprostol sodium and carbetocin on parturition of sows

ZHANG Liang(), CHAI Jie, PAN Hongmei(), GUO Zongyi   

  1. Chongqing Academic of Animal Science, Chongqing 402460, China
  • Received:2020-11-13 Online:2022-05-25 Published:2022-06-06
  • Contact: PAN Hongmei

Abstract:

As a synthetic prostaglandin analog, cloprostol sodium is widely used to induce delivery in various livestock. Carbetocin (CBT) is an oxytocin-like molecule with long-acting properties which targets the same receptors on the myometrium as oxytocin. It is currently considered to be a substitute for oxytocin in the sows to contract the uterus to initiate delivery. The first trial mainly studied the injection site and dosage of cloprostol sodium. The sows were randomly divided into natural delivery group (n=74), 2 mL intramuscular injection group (n=52), 2 mL Houhai acupoint injection group (n=63) and 1 mL Houhai acupoint injection group (n=57). The results of the study showed that the sows in the 2 mL Houhai acupoint injection group showed more synchronized farrowing time, with the shortest farrowing duration (228 min) and the highest daytime delivery rate (90.48%). It was indicated that the sows’ farrowing duration can be shortened and the daytime delivery rate of sows can be improved to a certain extent by adjusting the injection time, dosage and location of sodium cloprostol. The second trial mainly studied the effect of carbetocin (CBT) in combination with cloprostol sodium. The sows were randomly divided into natural delivery group (n=81), cloprostol sodium injection group (n=70), and CBT injection group (n=67), cloprostol sodium+CBT injection group (n=64). The results of the study showed that the combined application of cloprostol sodium and carbetocin could shorten the farrowing duration of sows (205 min), and significantly increased the daytime delivery rate in the working hours (95.31%).

Key words: sows, induced parturition, carbetocin, cloprostol sodium, daytime delivery

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