修水黄羽乌鸡体尺与体重通径分析及最优回归模型的建立  

Path Analysis and Optimum Regression Equation Between Body Size and Body Weight of Xiushui Yellow Silky

作　　者：苏红卫[1] 毛辉荣[1] 谭东海[1] 李江曼[1] 万明辉[1] 刘三凤[1] 

机构地区：[1]江西农业大学动物科学技术学院,江西南昌330045

出　　处：《中国畜牧杂志》2014年第17期9-12,共4页Chinese Journal of Animal Science

基　　金：江西省科技支撑计划重点项目(2009BNA06800);江西农业大学自由申请项目(2008)

摘　　要：本研究运用SPSS17.0对150日龄修水黄羽乌鸡公母鸡体尺(X1=体斜长、X2=龙骨长、X3=胸深、X4=胸围、X5=胫长、X6=胫围、X7=骨盆宽)与体重进行相关性分析、通径分析,确立影响体重的主要体尺性状,并建立体尺与体重的最优回归模型。结果表明:修水黄羽乌鸡体重、体尺较其它鸡品种要小;龙骨长是影响母鸡体重的最主要体尺因素,胸围是影响公鸡体重的最主要体尺因素;修水黄羽乌鸡公母鸡体尺对体重的最优回归方程分别为Y=-679.9+41.7X4+211.3X6和Y=-735.2+76.2X2+40.5X4。The correlation between body size traits （X1 =body length,X2=length over keel blocks,X3=chest depth,X4 =chest circumference,X5 =shin length,X6 =shin circumference,X7 =width of pelvis） and body weight,the path analysis and the decision factors of body size for body weight of Xiushui yellow silky were analyzed by SPSS software.The optimum regression equations were established respectively.The results showed that the body weight and body size of Xiushui yellow silky were smaller than those of other chicken breeds.The decision factor for the body weight in female and male was length over keel blocks and breast circumference,respectively.The optimum regression equations of cock and hen were Y=-679.9＋41.7X4＋211.3X6 and Y=-735.2＋76.2X2＋40.5X4,respectively.

关 键 词：体尺 体重 通径分析 回归模型 修水黄羽乌鸡 

分 类 号：S831.2[农业科学—畜牧学]