Unraveling genetic sensitivity of beef cattle to environmental variation under tropical conditions.

ABSTRACT:

Background

Selection of cattle that are less sensitive to environmental variation in unfavorable environments and more adapted to harsh conditions is of primary importance for tropical beef cattle production systems. Understanding the genetic background of sensitivity to environmental variation is necessary for developing strategies and tools to increase efficiency and sustainability of beef production. We evaluated the degree of sensitivity of beef cattle performance to environmental variation, at the animal and molecular marker levels (412 K single nucleotide polymorphisms), by fitting and comparing the results of different reaction norm models (RNM), using a comprehensive dataset of Nellore cattle raised under diverse environmental conditions.

Results

Heteroscedastic RNM

SUBMITTER: Carvalheiro R 

PROVIDER: S-EPMC6585094 | biostudies-literature | 2019 Jun

REPOSITORIES: biostudies-literature