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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 |
| Aparece nas coleções: | DZO - Artigos publicados em periódicos |
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