MANDAL, D K; SINGH, KRIPAL; TYAGI, S. Age related changes in body size and gonadal development of growing Frieswal bulls. The Indian Journal of Animal Sciences, Delhi, India, v. 74, n. 1, 2014. Disponível em: https://epubs.icar.org.in/index.php/IJAnS/article/view/38188. Acesso em: 23 oct. 2025.