The impact of direct-maternal genetic correlations on international beef cattle evaluations for Limousin weaning weight.

ABSTRACT: In beef cattle maternally influenced traits, estimates of direct-maternal genetic correlations (rdm) are usually reported to be negative. In international evaluations, rdm can differ both within countries (rdm_WC) and between countries (rdm_BC). The rdm_BC are difficult to estimate and are assumed to be zero in the current model for international beef cattle evaluations (Interbeef). Our objective was to investigate re-ranking of international estimated breeding values (IEBVs) in international beef cattle evaluations between models that either used estimated values for rdm or assumed them to be 0. Age-adjusted weaning weights and pedigree data were available for Limousin beef cattle from ten European countries. International EBVs were obtained using a multi-trait animal model with countries

SUBMITTER: Bonifazi R 

PROVIDER: S-EPMC8442942 | biostudies-literature | 2021 Sep

REPOSITORIES: biostudies-literature