Genomic evaluation for a three-way crossbreeding system considering breed-of-origin of alleles

Table 10 Accuracies* of BOA^a, G ^b_A , and G ^c_B models calculated for each of the four folds of cross-validation for estimating breeding values of the maternal breed Large White pigs for crossbred performance for each trait, and weighting factor (w) of the calculated DRP

Folds	\(\varvec{w}\)	BOA	\({{\bf G}}_{{{\bf A}}}\)	\({{\bf G}}_{{{\bf B}}}\)
BF
1	0.21	0.217	0.221	0.216
2	0.13	0.095	0.094	0.089
3	0.28	0.190	0.175	0.170
4	0.23	0.219	0.242	0.243
Mean		0.180	0.183	0.180
LD
1	0.62	0.235	0.234	0.232
2	0.38	0.103	0.126	0.126
3	0.74	0.226	0.229	0.228
4	0.64	0.297	0.318	0.318
Mean		0.215	0.227	0.226

ADG average daily gain, BF back fat thickness, LD loin depth
* Accuracies measured as weighted correlation between DRP and EBV of LR pigs for crossbred performance. Approximate standard errors SE, computed as (1−r²)/N √ (1−r²)/N, were equal to 0.023 to 0.024 for the mean accuracies across the folds, for all combinations of traits and methods.
^aBOA model, model with breed-specific relationship matrices
^b \({\text{G}}_{\text{A}}\) model, model with genomic relationship matrix by allele frequencies obtained across the genotyped population
^c \({\text{G}}_{\text{B}}\) model, model with genomic relationship matrix by breed-specific allele frequencies

ISSN: 1297-9686