Animal Husbandry and Feed Science ›› 2017, Vol. 38 ›› Issue (10): 56-56.doi: 10.12160/j.issn.1672-5190.2017.10.017

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Development of Comprehensive Technology of Sows Reproductive Performance Improvement

Zhaorigetu1,2, Hexigebaiyin1 , SONG Rong-ting1 , LI Zhi-guo2(1.Chifeng Academy of Agricultural and Animal Husbandry Sciences袁 Chifeng 024031, China; 2. Shuangxin Pig Breeding Farm,Chifeng Academy of Agricultural and Animal Husbandry Sciences,Chifeng 024031, China)Abstract In order to develop a set of comprehensive technology to improve the reproductive performance of sows, the effects of   

  • Online:2017-10-20 Published:2017-10-20

Abstract: In order to develop a set of comprehensive technology to improve the reproductive performance of sows, the effects of exogenous hormones treatments [luteinizing hormone releasing hormone A3 (LHRH -A3) and oxytocin]and deep cervicalinsemination (low semen volume) on sows pregnancy rate, average litter size, live litter size, and weak litter size were assessed. The results showed that the sows receiving intramuscular injection of LHRH-A3 had significantly higher average litter size and live litter size (P〈0.05); the sows inseminated using the semen added with oxytocin showed higher pregnancy rate, average litter size, and live litter size (P〉0.05); the application of deep cervical insemination technique in sows significantly increased the average litter size and live litter size (P〈0.05), and no significant differences in reproductive performance between the sows inseminated with low and normal semen volume were observed (P〉0.05). The comprehensive technology of exogenous hormones treatments and deep cervical insemination with low semen volume developed in this study improves the reproductive performance of sows, which has a good popularizing value in practical production.

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