SINGH, M K; GURNANI, M. Factors affecting body weight at different ages, age at first fertile service and age at first calving in Karan Fries cattle. The Indian Journal of Animal Sciences, Delhi, India, v. 72, n. 6, 2014. Disponível em: https://epubs.icar.org.in/index.php/IJAnS/article/view/37657. Acesso em: 23 oct. 2025.