PAUL, S. S.; CHANU, Y. M.; DEY, A. . Options for Improving Nitrogen Utilization Efficiency in Ruminants. Indian Journal of Animal Nutrition, India, v. 33, n. 1, 2018. Disponível em: https://epubs.icar.org.in/index.php/IJAN/article/view/72599. Acesso em: 6 jun. 2026.