A. K. Singh, S. Kumar, and A. K. Srivastava, “Mechanisms regulating post-partum acyclicity in suckled bovines: a review”, Indian J of Anim Sci, vol. 77, no. 10, Oct. 2007, Accessed: Oct. 23, 2025. [Online]. Available: https://epubs.icar.org.in/index.php/IJAnS/article/view/10291