Effect of vitamin A injection at birth on intramuscular fat development and meat quality in beef cattle
Nenhuma Miniatura disponível
Data
2022-02-01
Autores
Maciel, Felipe C.
Machado Neto, Otávio R. [UNESP]
Duarte, Marcio S.
Du, Min
Lage, Josiane Fonseca
Teixeira, Priscilla D.
Martins, Cyntia L. [UNESP]
Domingues, Edmilson H.R.
Fogaça, Luiz A. [UNESP]
Ladeira, Marcio M.
Título da Revista
ISSN da Revista
Título de Volume
Editor
Resumo
This study aimed to evaluate intramuscular fat and expression of genes in the muscle of Montana × Nellore treated with vitamin A at birth. We hypothesized that an injection of vitamin A after birth would increase marbling by increasing the expression of angiogenic, adipogenic, and lipogenic genes. Animals treated with vitamin A had greater marbling in the longissimus muscle (P = 0.05). The vitamin A treatment increased the expression of VEGFA gene at 40 days of age and at weaning and increased the expression of ZNF423 at weaning and at harvesting (P ≤ 0.03). The expression of WNT was higher (P = 0.01) at 40 days of age and at weaning in the animals treated with vitamin A. Vitamin A also increased the expression of SREBF1 at 40 days of age and at weaning (P ≤ 0.05). Therefore, the administration of vitamin A to cattle at birth could be a way to increase carcass marbling without affecting the performance of the animals.
Descrição
Palavras-chave
Gene expression, Marbling, Neonatal programming, Retinoic acid
Como citar
Meat Science, v. 184.