Use este identificador para citar ou linkar para este item: http://repositorio.ufla.br/jspui/handle/1/50237
Título: Effect of vitamin A injection at birth on intramuscular fat development and meat quality in beef cattle
Palavras-chave: Gene expression
Marbling
Neonatal programming
Retinoic acid
Data do documento: Fev-2022
Editor: Elsevier
Citação: MACIEL, F. C. et al. Effect of vitamin A injection at birth on intramuscular fat development and meat quality in beef cattle. Meat Science, [S.l.], v. 184, p. 1-7, Feb. 2022. DOI: 10.1016/j.meatsci.2021.108676.
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.
URI: https://www.sciencedirect.com/science/article/pii/S0309174021002527
http://repositorio.ufla.br/jspui/handle/1/50237
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