KUMAR, AJAY; SINGH, C; SINGH, A P. Response of age and reproductive stage on plasma cobalt concentration with and without feeding mineral mixture. The Indian Journal of Animal Sciences, Delhi, India, v. 77, n. 7, 2011. Disponível em: https://epubs.icar.org.in/index.php/IJAnS/article/view/5501. Acesso em: 23 oct. 2025.