影响杜洛克猪新品系60日龄窝重繁殖性状因素的相关性分析  

Correlation Analysis of Breeding Traits Affecting the Litter Weight of New Line Duroc Pigs at 60-day-old

作　　者：华升[1] 梅书棋[1] 彭先文[1] 

机构地区：[1]湖北省农业科学院畜牧兽医研究所,武汉430209

出　　处：《中国畜牧兽医》2009年第12期204-206,共3页China Animal Husbandry & Veterinary Medicine

基　　金："十一五"国家科技支撑计划(2006BAD01A08-02);湖北省农业创新项目(2007-620-004-003);现代生猪产业技术体系建设专项(NYCYTX-009)

摘　　要：利用通径分析、决定系数分析及多元逐步回归分析等方法找到了影响杜洛克猪新品系60 d窝重的主要繁殖性状是60 d活仔数2、0 d活仔数、60 d个体重及20 d个体重,而初生重、初生窝重和产活仔数影响较小。60 d窝重的最优回归方程为:Y=2.1836X4-15.6442X5-11.4572X6+18.129X7+6.9936X8-44.6259。The major breeding traits which affected the litter weight of new line Duroc pigs at 60-day-old were found by using path coefficeient,determination coefficient and multi-factor gradual regression analysis.60-day litter size,20-day litter size,60-day weight and 20-day weight had great influence,but the birth weight,liveborn weight and number born alive had little influence.The optimal regression equation which affected the litter weight at 60-day-old was Y=2.1836X4-15.6442X5-11.4572X6＋ 18.192X7＋6.9936X8-44.6259.

关 键 词：杜洛克猪新品系 60d窝重 相关性分析 

分 类 号：S813[农业科学—畜牧学]