SINGH, K K. Effect of different sources of nitrogen supplements on intake and utilization of dry mature grasses in crossbred cattle. The Indian Journal of Animal Sciences, Delhi, India, v. 69, n. 5, 2012. Disponível em: https://epubs.icar.org.in/index.php/IJAnS/article/view/20550. Acesso em: 24 oct. 2025.