Genotype-by-environment interactions for feed efficiency traits in Nellore cattle based on bi-trait reaction norm models.

ABSTRACT:

Background

Selecting animals for feed efficiency directly impacts the profitability of the beef cattle industry, which contributes to minimizing the environmental footprint of beef production. Genetic and environmental factors influence animal feed efficiency, leading to phenotypic variability when exposed to different environmental conditions (i.e., temperature and nutritional level). Thus, our aim was to assess potential genotype-by-environment (G × E) interactions for dry matter intake (DMI) and residual feed intake (RFI) in Nellore cattle (Bos taurus indicus) based on bi-trait reaction norm models (RN) and evaluate the genetic association between RFI and DMI across different environmental gradient (EG) levels. For this, we used phenotypic information on 12,958 animals (young bu

SUBMITTER: Silva Neto JB 

PROVIDER: S-EPMC10722809 | biostudies-literature | 2023 Dec

REPOSITORIES: biostudies-literature