应用随机回归模型估计蛋鸡体重遗传参数

郭军,曲亮,窦套存,王星果,沈曼曼,胡玉萍,王克华

Using Random Regression Models to Estimate Genetic Parameters on Body Weights in Layers

GUO Jun,QU Liang,DOU TaoCun,WANG XingGuo,SHEN ManMan,HU YuPing,WANG KeHua

表2 蛋鸡体重遗传模型比较

Table 2 Comparison of models on body weight in laying chickens

加性遗传效应阶数 Orders of additive genetic effects 永久环境效应阶数 Orders of PE effects 参数个数 The number of parameters 最大对数似然值 Maximum lgL AIC BIC 2 2 11 -84372 168766 168855 2 3 14 -83807 167642 167755 2 4 18 -83776 167589 167734 2 5 23 -83734 167514 167514 2 6 29 -83734 167526 167760 3 3 17 -83627 167288 167426 3 4 21 -83599 167240 167410 3 5 26 -83553 167157 167367 3 6 32 -83553 167169 167428 4 4 25 -83515 167081 167283 4 5 30 -83419 166899 167142 4 6 36 -83419 166911 167202 5 5 35 -83052 166173 166456 5 6 41 -83052 166185 166517 6 6 47 -83052 166197 166577