摘要
本文给出了动物三元杂交试验的多元分析方法和综合杂种优势的概念。我们把综合杂种优势定义为H_F=W_1h_1+……+W_Lh_L,这里h_L是第L个目标性状的杂种优势,W_L是其相对经济价值,l=1,2,……L。根据广义最小平方理论,本文给出了三元杂交试验中的H_F的最优线性无偏估计及置信区间。
The multrivariate analysis method and the concept of comprehensive heterosis for livestock three-way cross text are given in our paper. We difine the comprehensive heterosis as H_F=W_ih_i+……+W_Lh_L, where h_L is the Lth trait's hybrid vigor, W_L is the relative economic weight given to the Lth trait, L=1, 2…L. Based on the generalized least squares estimate method, we give the best linear unbiased estimate and the confidence inferual of H_F, for three-way cross here,
关键词
杂种优势
三元杂交
分析
家畜
comprehensive heterosis
three-way cross text
multrivariate analysis
generalized least squares estimate method
