胎次、季节和产仔数对大白母猪分娩产程的影响

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英文篇名：Effect of Parity,Season and Litter Size on Farrowing Duration of Large White Sow 作者：赵云翔 ; 罗元宇 ; 杨广明 ; 朱晓萍 ; 李智丽 ; 李镇养 英文作者：ZHAO Yunxiang;LUO Yuanyu;YANG Guangming;ZHU Xiaoping;LI Zhili;Li Zhenyang;College of Life Science and Engineering,Foshan University;Liupanshui Academy of Agricultural Sciences; 关键词：大白母猪 ; 产程 ; 胎次 ; 季节 英文关键词：Large White sow;;farrowing duration;;parity;;season 中文刊名：JCST 英文刊名：Journal of Domestic Animal Ecology 机构：佛山科学技术学院生命科学与工程学院;贵州省六盘水市农业科学研究院; 出版日期：2019-03-15 出版单位：家畜生态学报 年：2019 期：v.40;No.202 基金：佛山科学技术学院科研启动基金基项目(gg040983);; 广东省教育厅预防兽医学重点实验室项目(2014KTSPT037) 语种：中文; 页：JCST201903009 页数：4 CN：03 ISSN：61-1433/S 分类号：50-53

摘要

收集广西某规模化猪场2248胎大白母猪分娩产程数据,探讨胎次、季节、产仔总数和死胎等因素对母猪产程的影响。结果表明:(1)初产母猪和≥7胎次母猪产程时间较长,与2~6胎母猪产程时间差异显著;(2)母猪产程在夏季比冬、春两季都长;夏季分娩母猪产程与冬、春两季都存在显著性差异(P<0.05),冬季与春季分娩母猪产程差异不显著(P>0.05);(3)产仔总数、死胎数均与母猪产程呈正相关关系(P<0.01),产仔数为16~24头的母猪产程与产仔数分别为2~9头、10~12头、13~15头的母猪产程均差异显著(P<0.05);当母猪产程>360min时,窝产死胎数与产程分别为0~120min、121~240min、241~360min母猪的窝产死胎数均存在显著性差异(P<0.05);(4)大部分母猪会选择在安静且温度适宜的环境下分娩。试验结果提示,母猪产程受胎次、温度、产仔总数和死胎数的影响,优化猪场环境管理可以缩短母猪产程,提高母猪分娩福利。
        In this study,data from 2248 parities of large white sow in a large-scale pig farm in Guangxi province were collected,and the factors of parity,season,litter size and stillbirth on farrowing duration were analyzed.The results showed that:(1)sow with the first parity and≥7 had longer farrowing time,with a significant difference between that of 2-6 parities;(2)Sow had longer farrowing duration in summer than in winter and spring(P<0.05),with a significant difference;(3)The litter size and stillbirth positively correlated with farrowing duration(P<0.01),the farrowing duration of sow delivered 16 to 24 piglets is significantly different from that delivered 2-9,10-12 and 13-15 piglets;when the farrowing duration was beyond 360 min,the number of stillbirth was of significant difference compared to that of 0~120 min,121~240 min and 241~360 min,respectively(P<0.05);(4)Most sow chose to farrow in a quiet and comfortable environment.It is concluded that farrowing duration can be affected by parity,litter size,temperature,and stillbirth.Therefore,optimizing the environment of pig farms can shorten farrowing duration and improve the welfare of the sow.

引文

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