陆川母猪产程对繁殖性能的影响  

The Effects on Reproduction Performance of Duration of Farrowing in Luchuan Sows

作　　者：曾检华[1,2] 鄢航 许兆伟 谭家健 刘小红[1] 陈清森[1,2] 

机构地区：[1]中山大学生命科学学院广东省生猪改良繁育工程技术研究开发中心,广东广州510475 [2]广西扬翔地方猪创新研究院扬翔猪事业部,广西贵港537100 [3]广西来宾市畜牧站,来宾546100

出　　处：《养猪》2015年第5期30-32,共3页Swine Production

基　　金：广西科技术开发项目(2014AB08042);国家星火计划(2013GA790001);广西创新型企业培育项目(1355012-16);广东省科技项目(2013B020415007)

摘　　要：研究分析了陆川母猪产程对当胎繁殖性能、断奶后发情配种情况及下一胎繁殖性能的影响。结果表明,陆川母猪产程的长短与当胎的产仔数有关,产仔数高,则产程相应延长;母猪产程越长,产死胎母猪比例增加,产程后期产死胎几率越大,窝产死胎数相应提高;前一胎产程长,则下一胎产程相应较长;产程过长(>4 h)其返情比例亦高于群体均值。陆川母猪产程过长与其限位饲养导致母猪体质下降有关;此外,陆川母猪比较敏感,接产不当会加重其紧张状态,致使产程延长。The objective of this study was to determine the effects of duration of farrowing on litter size,subsequent estrus,repeat breeding rate after weaning, and litter size of next parity.The results showed that duration of farrowing related to the litter size.The high litter size prolonged duration of farrowing,increase the possibility in delivering stillbirths and the number of stillbirths.And it would prolong duration of farrowing in next parity when the total duration of previous farrowing was longer.The sows with a longer duration of farrowing（〉4 h） have higher rate of return to estrns.Luchuan sows have long duration of farrowing,which was associated with the poor health owing to the feeding and house condition.Moreover,Luchuan sows were sensitive,so that the incorrect deliver operation would make them nervous, and prolonged duration of farrowing.

关 键 词：龙宝1号猪配套系 LB33系 产程 断奶7d内配种比例 断奶至首次配种间隔 

分 类 号：S828.8[农业科学—畜牧学]