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Impact of maternal protein supplementation during mid or late gestation on skeletal muscle energy metabolism of beef calves

Authors :
Letícia Maria Pereira Sanglard
David Esteban Contreras Marquez
Walmir Silva
Marta Maria dos Santos
Thaís Correia Costa
Dante Teixeira Valente Junior
Mateus Pies Gionbelli
Nick Vergara Lopes Serão
Claudia Batista Sampaio
Marcio de Souza Duarte
Source :
Ciência Rural, Vol 53, Iss 7 (2022)
Publication Year :
2022
Publisher :
Universidade Federal de Santa Maria, 2022.

Abstract

ABSTRACT: This study evaluated the effect of maternal protein supplementation during mid or late gestation on energy metabolism of the skeletal muscle of beef calves. Sixteen pregnant cows were divided into 3 groups: CTRL (not supplemented); MID (supplemented from 30 to 180 days of gestation); and LATE (supplemented from 181 to 281 days of gestation). The supplement contained 30% crude protein. Thirty days after birth, blood and muscle samples of the calves were collected for analyses of gene expression, proteins, and metabolites. No differences (P ≥ 0.15) in birth weight, performance at weaning, or muscle expression of the genes evaluated (P ≥ 0.21) were observed. Calves born to CTRL cows had a lower ratio (P = 0.03) of p-AMPK/AMPK protein in the skeletal muscle. Calves born to MID cows had lower (P = 0.04) glucose concentration than those born to LATE cows. Changes in p-AMPK/AMPK protein, indicated a possible metabolic inflexibility in the skeletal muscle of calves born to CTRL cows. These results indicated that lack of protein supplementation in pregnant cows alter the energy metabolism of their calves and reflect in a metabolic inflexibility.

Details

Language :
English, Portuguese
ISSN :
16784596 and 01038478
Volume :
53
Issue :
7
Database :
Directory of Open Access Journals
Journal :
Ciência Rural
Publication Type :
Academic Journal
Accession number :
edsdoj.56991d394640e58d92e3ac50e74766
Document Type :
article
Full Text :
https://doi.org/10.1590/0103-8478cr20210917