MANDAL, D K; TYAGI, S; KUMAR, M. Spermiogram of Low vis á vis High Sperm Output Crossbred Frieswal Bulls. Indian Journal of Dairy Science, India, v. 65, n. 4, 2012. Disponível em: https://epubs.icar.org.in/index.php/IJDS/article/view/25768. Acesso em: 11 jun. 2026.