UPADHYAY, A; SADANA, D K; GUPTA, A K; SINGH, AVTAR. Analysis of age and lactation specific survival rate, stayability and expected herd life in Sahiwal cattle. The Indian Journal of Animal Sciences, Delhi, India, v. 84, n. 7, p. 767–770, 2014. DOI: 10.56093/ijans.v84i7.42120. Disponível em: https://epubs.icar.org.in/index.php/IJAnS/article/view/42120. Acesso em: 24 jun. 2026.