Genetic parameters and genomic prediction for feed intake recorded at the group and individual level in different production systems for growing pigs

Table 3 Pearson’s correlations between group (genomic) estimated breeding values ((G)EBV) calculated as the sum of (G)EBV for animals in each group and the corrected phenotypes of group-level feed intake (\(\rho_{{y_{c} ,r}}\)), and slope (SE) of the regression of corrected phenotypes of group-level feed intake on group (G)EBV (\(b_{{y_{c} ,r}}\)) calculated as the sum of (G)EBV for animals in each group from univariate pedigree-based best linear unbiased prediction (PBLUP) and single-step genomic best linear unbiased prediction (ssGBLUP), the bivariate PBLUP and ssGBLUP models

	All 323 groups
	\({\varvec{\rho}}_{{{\varvec{y}}_{{\varvec{c}}} ,{\varvec{r}}}}\)	\({\varvec{b}}_{{{\varvec{y}}_{{\varvec{c}}} ,{\varvec{r}}}}\)
Univariate^a
PBLUP	0.578	1.00 (0.079)
ssGBLUP	0.597	0.91 (0.068)
Bivariate^b
PBLUP	0.596	1.00 (0.075)
ssGBLUP	0.629	0.87 (0.060)

^aUnivariate analyses were based on the group-level dataset only
^bBivariate analyses were based on the combination of group- and individual-level datasets

ISSN: 1297-9686