SINGH, L P; AGRAWAL, RAJNISH. Effect of protein concentration and ferning pattern of bovine cervical mucus on sperm penetration. The Indian Journal of Animal Sciences, Delhi, India, v. 70, n. 10, 2014. Disponível em: https://epubs.icar.org.in/index.php/IJAnS/article/view/36261. Acesso em: 23 oct. 2025.