Table 4.

Accuracies and regression coefficients of predicted breeding values and total genetic values for models MA, MG, and MGD

Trait	$${\mathit{r}\left(\mathit{YD},\widehat{\mathit{u}}\right)}^{\mathbf{1}}$$			$${\mathit{r}\left(\mathit{YD},\widehat{\mathit{g}}\right)}^{\mathbf{2}}$$	$${\mathit{b}\left(\mathit{YD},\widehat{\mathit{u}}\right)}^{\mathbf{3}}$$			$${\mathit{b}\left(\mathit{YD},\widehat{\mathit{g}}\right)}^{\mathbf{4}}$$
	MA	MG	MGD	MGD	MA	MG	MGD	MGD
Milk yield	0.221 ± 0.029	0.277 ± 0.030	0.278 ± 0.031	0.275 ± 0.032	0.925 ± 0.109	0.955 ± 0.099	0.967 ± 0.101	0.950 ± 0.104
Fat yield	0.228 ± 0.018	0.325 ± 0.020	0.325 ± 0.019	0.325 ± 0.019	1.031 ± 0.085	1.068 ± 0.078	1.085 ± 0.079	1.072 ± 0.075
Protein yield	0.202 ± 0.031	0.236 ± 0.016	0.238 ± 0.016	0.234 ± 0.016	0.958 ± 0.148	0.889 ± 0.070	0.924 ± 0.072	0.889 ± 0.069
Somatic cell score	0.102 ± 0.018	0.169 ± 0.020	0.169 ± 0.019	0.168 ± 0.015	0.866 ± 0.165	1.007 ± 0.131	1.031 ± 0.133	0.973 ± 0.107
Milkability	0.133 ± 0.042	0.327 ± 0.025	0.324 ± 0.028	0.322 ± 0.027	0.563 ± 0.182	0.744 ± 0.057	1.053 ± 0.099	1.004 ± 0.087
Stature	0.180 ± 0.017	0.308 ± 0.014	0.308 ± 0.014	0.308 ± 0.014	1.082 ± 0.117	1.030 ± 0.059	1.023 ± 0.059	1.021 ± 0.059
Udder score	0.121 ± 0.017	0.159 ± 0.022	0.159 ± 0.022	0.158 ± 0.022	1.023 ± 0.144	1.004 ± 0.142	1.007 ± 0.142	1.002 ± 0.146
Udder depth	0.192 ± 0.017	0.269 ± 0.020	0.269 ± 0.020	0.272 ± 0.020	1.031 ± 0.119	0.988 ± 0.095	0.991 ± 0.094	0.988 ± 0.095
Feet and legs score	0.106 ± 0.026	0.108 ± 0.023	0.108 ± 0.023	0.109 ± 0.024	1.201 ± 0.290	1.055 ± 0.221	1.063 ± 0.223	1.060 ± 0.225

The results are given as mean ± standard error.¹$\mathit{r}\left(\mathit{YD},\widehat{\mathit{u}}\right)$ = accuracy of predicted breeding values (cross-validation correlation between YD and predicted breeding values).²$\mathit{r}\left(\mathit{YD},\widehat{\mathit{g}}\right)$ = accuracy of predicted total genetic values (cross-validation correlation between YD and predicted total genetic values).³$\mathit{b}\left(\mathit{YD},\widehat{\mathit{u}}\right)$ = regression coefficient of YD on predicted breeding values.⁴$\mathit{b}\left(\mathit{YD},\widehat{\mathit{g}}\right)$ = regression coefficient of YD on predicted total genetic values.