SRIVASTAVA, S K; SHANKER, UMA; AGARWAL, S K; SAHNI, K L. Effect of oestrus cervical mucus peroxidase and fern pattern on fertility in crossbred cows. The Indian Journal of Animal Sciences, Delhi, India, v. 70, n. 8, 2014. Disponível em: https://epubs.icar.org.in/index.php/IJAnS/article/view/36192. Acesso em: 23 oct. 2025.