PATEL, J A; KAVANI, F S; DHAMI, A J. Ultrasonographic study on follicular dynamics in repeat breeding Holstein Friesian cows. The Indian Journal of Animal Sciences, Delhi, India, v. 76, n. 8, 2011. Disponível em: https://epubs.icar.org.in/index.php/IJAnS/article/view/4236. Acesso em: 4 jun. 2026.