Path analysis of the main economic characters of the Inner Mongolia white cashmere goats.
Path analysis of the main economic characters of the Inner Mongolia white cashmere goats.
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DOI：
10.18006/2015.3(3).269.274
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发表时间：
2015
影响因子：
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通讯作者：
Bai Junyan;Jia Xiao-ping;W. Yuqin;Pang Youzhi
中科院分区：
文献类型：
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作者：
Bai Junyan;Jia Xiao-ping;W. Yuqin;Pang Youzhi
利用SAS8.1软件对内蒙古白绒山羊产绒量(Y)、体重(X1)、绒厚(X2)、绒长(X3)、绒细度(X4)、绒伸长(X5)等经济性状之间的相关系数进行了分析，并在通径分析的基础上建立了产绒量与其他经济性状的回归方程。结果表明，决定公羊产绒量的主要因素是体重，决定绵羊产绒量的主要因素是羊绒厚度，其次是体重。公羊和母羊产绒量与其他经济性状的回归方程分别为Y=7.0462X1+15.6568X2-7.2930X3+14.5744X5和Y=176.8148+5.0321X1+45.5121X2-3.4524X3+15.6498X4+18.7189X5，。建议在饲养内蒙古白绒山羊时，应注重体重和产绒量，同时兼顾绒厚和绒细度，才能获得良好的育种效果。白俊艳、肖平佳、王玉琴、尤志鹏
In this paper, the correlation coefficients among the various economic characters of the Inner Mongolia white cashmere goats such as cashmere yield (Y) , bo dy weight (X1), cashmere thickness (X2), staple length (X3), cashmere fineness (X4) and cashmere stretched length(X5) are analyzed with the SAS8.1 software, and the regression equation between the cashmere yield and other economic characters is established based on the path analysis. The results shows that the main factor determining the cashmere yield of rams is the body weight and that of ewes is the cashmere thickness of the cashmere, followed by the body weight. The regression equations of rams and ewes between the cashmere yield and other economic characters were Y=7.0462X1+15.6568X2-7.2930X3+14.5744X5 and Y=176.8148+5.0321X1+45.5121X2-3.4524X3+15.6498X4+18.7189X5, respectively. It’s recommended to put emphasis on the body weight and cashmere yield and give dual attention to the cashmere thickness and cashmere fineness when breedin g the Inner Mongolia white cashmere goats, in order to obtain good breedin g effect. JunYan Bai*, Xiao Ping Jia, Yu Qin Wang and You Zhi Pang