Muscle tissue transcriptome of F1 Angus-Nellore bulls and steers feedlot finished: impacts on intramuscular fat deposition.

ABSTRACT:

Background

Castration is a common practice in beef cattle production systems to manage breeding and enhance meat quality by promoting intramuscular fat (IMF) deposition, known as marbling. However, the molecular mechanisms that are influenced by castration in beef cattle are poorly understood. The aim of this study was to identify differentially expressed genes (DEGs) and metabolic pathways that regulate IMF deposition in crossbred cattle by RNA sequencing (RNA-Seq) of skeletal muscle tissue. Six hundred and forty F1 Angus-Nellore bulls and steers (n = 320/group) were submitted to feedlot finishing for 180 days. Sixty Longissimus thoracis muscle samples were collected randomly from each group in the hot carcass (at slaughter) and 48 h post-mortem (at deboning), at between 12th and

SUBMITTER: Reis IA 

PROVIDER: S-EPMC11616301 | biostudies-literature | 2024 Dec

REPOSITORIES: biostudies-literature