Application comprehensive analysis in Kazak sheep×Texel sheep hybrid breeding
Zhang Mei
Li Tao
Chu Hongzhong
Tuan Yong
Liu Jianming
Chen Chunhua
Liu Yiyong
Tu Lailijiang
Abstract：The study was aim to reveal the interaction and internal relationship between the body size traits of Kazak sheep and Texel sheep,and established effective indexes and regression equations for scientific identification and breeding.1 169 six-month-old Kazakh sheep and Texel sheep were selected experimental subjects in Yili area,carried out the correlation analysis,cluster analysis,principal component analysis and stepwise multiple regression analysis.The results showed that there was a extremely significant correlation between the body size traits of Teha hybrid progenies(P＜0.01).The cluster analysis showed that the traits could be divided into seven categories.The principal component analysis results could be divided into three principal component indexes:Y1(girth factor),Y2(body factor)and Y3(height factor),the cumulative contribution rate reached 63.89%.Six character indexes were selected in the optimal regression equation,which can be accurately and simply estimate the body weight.Through the comprehensive analysis of Teha hybrid progenies,it was clear that chest circumference an important breeding index,as the same we were taken into others traits and non genetic factors.
Keywords：Comprehensive analysisTeha hybrid lambBody weightBody size traits
Publication Date：2020-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：5( 14-18 )