Kumar, Amit, S.S. Tomar, Ravi Rojoriya, and Harish Sharma. 2017. “EFFECT OF INBREEDING AND SOME OTHER FACTORS ON AGE AT FIRST CALVING IN GIR COWS”. Indian Journal of Animal Production and Management 30 (3-4). https://epubs.icar.org.in/index.php/IJAPM/article/view/69504.