杂种猪胴体性状的通径分析  

Path analysis for the carcass traits of crossbreeding pigs

作　　者：陈海燕[1] 李江波[1] 徐燕云[1] 钟仙龙[1] 傅衍[2] 徐宁迎[2] 章胜乔[2] 

机构地区：[1]丽水师范专科学校生物系,丽水323000 [2]浙江大学动物科学学院,杭州310029

出　　处：《上海交通大学学报（农业科学版）》2003年第1期51-53,共3页Journal of Shanghai Jiaotong University(Agricultural Science)

基　　金：国家自然科学基金资助项目(39670533)

摘　　要：利用通径分析的方法,对杂种猪瘦肉率与其它胴体性状的相关关系进行了剖析,并建立了最优回归方程。结果表明:瘦肉率与脂率、皮率、背膘厚、屠宰率、宰前重及胴直长的表型相关都达显著(P<0.05)或极显著水平(P<0.01)。在这些性状中,脂率和皮率是影响瘦肉率的最主要因素。以瘦肉率为依变量的最优回归方程为:Y=79.4467+0.0712X1-0.1413X2+0.1678X4-0.8237X5-0.Based on path analysis,the correlations between lean meat percentage an d other carcass traits was analyzed.The lean meat percentage had a significa nt (P <0.05)or highly significant (P <0.01)correlation with fat rate,skin rate,back -fat thickness,dressing perce ntage,live weight and carcass length respectively.Among the traits stu died,both the fat and the skin rate were the important f actors which affect the lean meat percentage.The best regression model f or the lean meat percentage was formed as follows:Y =79.4467+0.0712X 1 -0.1413X 2 +0.1678X 4 -0.8237X 5 -0.9611X 6

关 键 词：杂种猪 胴体性状 通径分析 表型参数 

分 类 号：S828[农业科学—畜牧学]