KUMAR, P., SINGH, M. and VASISHTA, N.K. (2011) “Effect of progesterone supplementation on conception rate following artificial insemination in normal cows”, The Indian Journal of Animal Sciences, 79(3). Available at: https://epubs.icar.org.in/index.php/IJAnS/article/view/2912 (Accessed: 23 October 2025).