Understanding the underlying genetic mechanisms for age at first calving, inter-calving period and scrotal circumference in Bonsmara cattle.

ABSTRACT:

Background

Reproduction is a key feature of the sustainability of a species and thus represents an important component in livestock genetic improvement programs. Most reproductive traits are lowly heritable. In order to gain a better understanding of the underlying genetic basis of these traits, a genome-wide association was conducted for age at first calving (AFC), first inter-calving period (ICP) and scrotal circumference (SC) within the South African Bonsmara breed. Phenotypes and genotypes (120,692 single nucleotide polymorphisms (SNPs) post editing) were available on 7,128 South African Bonsmara cattle; the association analyses were undertaken using linear mixed models.

Results

Genomic restricted maximum likelihood analysis of the 7,128 SA Bonsmara cattle yielded genomi

SUBMITTER: Reding JJ 

PROVIDER: S-EPMC10464233 | biostudies-literature | 2023 Aug

REPOSITORIES: biostudies-literature