胎次对大白母猪产死胎数与弱仔数的影响

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英文篇名：Effect of Parity on the Number of Stillbirths and the Number of Weak Births in Yorkshire Sows 作者：冯帅飞 ; 郭艳娇 ; 马官军 ; 李新云 ; 赵书红 ; 邹庆坚 ; 李长春 ; 刘向东 英文作者：FENG Shuai-fei;GUO Yan-jiao;MA Guan-jun;LI Xin-yun;ZHAO Shu-hong;ZOU Qing-jian;LI Chang-chun;LIU Xiang-dong;Key Laboratory of Pig Genetics and Breeding,Ministry of Agriculture and Rural Sciences,College of Animal Science and Technology,Huazhong Agricultural University;Guangxi Yangxiang Co.,Ltd.; 关键词：母猪 ; 死胎数 ; 弱仔数 ; 胎次 英文关键词：Sow;;Number of stillbirths;;Number of Weak births;;Parity 中文刊名：ZGXM 英文刊名：Chinese Journal of Animal Science 机构：华中农业大学动物科学技术学院农业农村部猪遗传育种重点实验室;广西扬翔股份有限公司; 出版日期：2019-02-10 出版单位：中国畜牧杂志 年：2019 期：v.55 基金：中央高校基本科研业务费专项(2662016PY006) 语种：中文; 页：ZGXM201902011 页数：4 CN：02 ISSN：11-2083/S 分类号：59-62

摘要

为探究胎次对母猪产弱仔、死胎的影响,实验对广西某猪场2015年12月——2017年11月的8 028窝大白母猪的胎次和产弱仔数、死胎数进行统计分析。结果表明:不同胎次母猪产弱仔数和死胎数具有极显著差异(P<0.01),其中第1胎次母猪弱仔数显著高于其他胎次母猪(P<0.05),且弱仔数均值呈逐渐下降趋势;第5胎次母猪的死胎数显著低于其他胎次(P<0.05),且死胎数均值近似呈先下降后上升的趋势;对产弱仔数和死胎数占总产仔数的比例进行分析进一步证明了上述结果。综上,第2～6胎次母猪产弱仔数和死胎数都相对较少,产仔性能最好,规模化猪场可以考虑淘汰7胎以上的母猪;对第1胎次的母猪建设P1场(第1胎次母猪场),制定更为严格的"驯化"和饲养工作。
        In order to explore the effect of parity on the sows’ number of weak births and stillbirths,the experiment was carried out on the number of parity,births and stillbies of 8 028 litters of Yorkshire sows from December 2015 to November 2017 in a pig farm in Guangxi.The results showed that there were significant differences between the number of weak births and the number of stillbirths in different parity sows(P<0.01),and the number of weak births in the first parity sows was significantly higher than that in other parity sows(P<0.05).The mean number of weak litters showed a downward trend;the number of stillbirths of the fifth parity sows was significantly lower than other parity(P<0.05),and the mean number of stillbirths decreased first and then increased;The above results were further proved by analyzing the ratio of the number of weak births and the number of stillbirths to the total litter size.In summary,the number of weak and the number of stillbirths in the 2nd to 6th sows are relatively small,and the litter performance is the best.Large-scale pig farms can consider the elimination of sows with more than 7 births;Pig construction P1 field(first parity sow farm),to develop more strict "domesticization" and breeding work.

引文

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