SINGH, JAGIR, R KASRIJA, G S DHALIWAL, V K GANDOTRA, and M HONPARKHE. 2011. “Effect of Post-Insemination Progesterone Supplementation on Conception Rates in Repeat Breeding Cattle”. The Indian Journal of Animal Sciences 78 (3). https://doi.org/10.56093/ijans.v78i3.4639.