中国农业大学学报2011，Vol.16Issue(4)：113-117,5.
分娩限位栏PIC母猪的死胎分析
Analysis of stillbirth of PIC sows in farrowing crate
摘要
Abstract
To decrease the piglet stillbirth rate of PIC（Pig Improvement Company）sows,a longitudinal study was conducted to collect sow reproductive performance data from 6 415 litters in a Sino-U.S.joint venture swine farm from 2004 to 2008.The effects of parity,farrowing year,farrowing season,farrowing year × farrowing season interaction and total number born on number of stillborn（NSB） and percentage of born alive（PBA） were analyzed.Results of variance analysis indicated that farrowing season and total number of born had highly significant difference in NSB（P〈0.001）,and parity had significant difference in NSB（P〈0.05）,but not farrowing year（P〉0.05）.Farrowing year had significant difference in PBA（P〈0.05）,and farrowing seasons,the farrowing year × farrowing season interaction and total number of piglet born had highly significant difference in PBA（P〈0.001）.The sow farrowed in Spring and Winter had higher PBA（90.6%-90.8%）than that of in Summer and Autumn（83.4%-88.0%）.Moreover,there was an increasing trend of least square means for NSB and PBA with an increase with total number born.关键词
仔猪/母猪/分娩环境/死胎Key words
farrowing environment/piglet/sow/stillbirth分类
农业科技引用本文复制引用
顾招兵,林保忠,钟正泽,刘作华,王朝元,施正香,曹薇,李保明..分娩限位栏PIC母猪的死胎分析[J].中国农业大学学报,2011,16(4):113-117,5.基金项目
重庆市畜牧科学院科技攻关计划项目（10602) （）
国家公益性行业（农业)科研专项（201003001) （）
重庆市科技攻关国际合作项目（CSTC 2009AB1190) （）
