Accounting for genomic pre-selection in national BLUP evaluations in dairy cattle

Table 5 Quality of BLUP evaluations with or without accounting for pre-selection in the cohort of daughters of the selected young sires

Heritability	Proportion of selected young sires	Bias (in σ_g^c)		Mean squared error
		GPS_no^a	GPS_all^b	GPS_no^a	GPS_all^bb
0.36 (UD^d trait)	10%	-0.074 (***) -0.009 (ns)		0.547	0.541
	25%	-0.044 (**) -0.002 (ns)		0.544	0.540
0.14 (FA^e trait)	10%	-0.144 (***) -0.010 (ns)		0.685	0.662
	25%	-0.092 (***) -0.006 (ns)		0.674	0.660

H0 = {μ = 0}: ns = non significant (p > 0.001); *** = p-value < 0.001; ^agenomic pre-selection of young sires but no inclusion of genomic pseudo-performances; ^bgenomic pre-selection of young sires and genomic pseudo-performances were included for all candidate sires; ^cgenetic standard deviation of the trait; ^dudder depth; ^efoot angle

ISSN: 1297-9686