Vol. 10, Special Issue 11 (2021)

Author(s):
Gitesh Saini, Sandeep Kumar, Anand Kumar Pandey and Vinay Yadav

Abstract:
In present study comparative analysis of plasma estradiol concentration at time of AI in pregnant and non-pregnant indigenous cows was done. Estrus synchronization was done in total 200 cows and blood samples were collected at time of AI. Pregnancy diagnosis was done on day 45 post-AI and in subset of 100 cows (50 pregnant and 50 non pregnant) plasma estradiol was measured through ELISA kit. Higher plasma estradiol concentration (pg/ml) was found in pregnant cows as compared to non-pregnant.