Validation of genomic predictions for body weight in broilers using crossbred information and considering breed-of-origin of alleles.

ABSTRACT:

Background

Pig and poultry breeding programs aim at improving crossbred (CB) performance. Selection response may be suboptimal if only purebred (PB) performance is used to compute genomic estimated breeding values (GEBV) because the genetic correlation between PB and CB performance ([Formula: see text]) is often lower than 1. Thus, it may be beneficial to use information on both PB and CB performance. In addition, the accuracy of GEBV of PB animals for CB performance may improve when the breed-of-origin of alleles (BOA) is considered in the genomic relationship matrix (GRM). Thus, our aim was to compare scenarios where GEBV are computed and validated by using (1) either CB offspring averages or individual CB records for validation, (2) either a PB or CB reference population, and (3

SUBMITTER: Duenk P 

PROVIDER: S-EPMC6613268 | biostudies-literature | 2019 Jul

REPOSITORIES: biostudies-literature