IMAM, S, M R ANSARI, RIPUSUDAN KUMAR, VISHAL MUDGA, V P VARSHNEY, and R S DASS. 2011. “Effect of Inorganic and Organic Zinc Supplementation on Serum Testosterone Level in Murrah Buffalo (Bubalus Bubalis) Bulls”. The Indian Journal of Animal Sciences 79 (6). https://epubs.icar.org.in/index.php/IJAnS/article/view/2916.