AGUNBIADE, J. A.; BABATUNDE, G. M. COPPER AND IRON SUPPLEMENTATION IN THE DIETS OF LAYING HENS IN THE TROPICAL ENVIRONMENT — EFFECTS ON PRODUCTION TRAITS. Nigerian Journal of Animal Production, [S. l.], v. 15, p. 91–97, 2021. DOI: 10.51791/njap.v15i.1213. Disponível em: https://njap.org.ng/index.php/njap/article/view/1213. Acesso em: 25 sep. 2026.