重庆黑山羊体尺体重指标与胴体净肉率的相关回归分析  

Regression Analysis between Body Weight Body Size and Carcass Net Muscle Percentage of Chongqing Black Goat

作　　者：王高富[1] 黄勇富[1] 罗艺[1] 赵金红[1] 高立芳[1] 

机构地区：[1]重庆市畜牧科学院,重庆荣昌402460

出　　处：《草食家畜》2009年第1期28-31,共4页Grass-Feeding Livestock

基　　金：科技部畜禽种质资源共享平台建设项目(2005DKA21101)。

摘　　要：采用SAS软件CORR过程对重庆黑山羊成年羊体尺体重指标与胴体净肉率进行相关分析,并以成年体高X1、体斜长X2、胸围X3、胸宽X4、胸深X5、成年体重X6为自变量,胴体净肉率Y为因变量,采用REG过程BACKWARD(后退法)的多元回归分析方法,构建了估测重庆黑山羊胴体净肉率的最优回归方程:Y=9.9370-0.0109X3-0.2184X4+0.4914X5。The phenotype correlation between body size body weight and carcass net muscle percentage of Chongqing Black Goat were analyed with SAS software CORR progress. With carcass net muscle percentage Y as dependent variables, body height （X1）, trunk length （X2）, chest girth （X3）, chest width （X4）, chest depth（X5）, body weight（X6） as independent variables, REG progress BACKWARD multiple regression analysis was carried out.And the optimum regression equation was established subsequently： Y=69.9370-0.0109X3-0.2184X4＋ 0.4914X5.

关 键 词：重庆黑山羊 体尺体重 胴体净肉率 相关系数 回归模型 

分 类 号：S871[农业科学—畜牧兽医]