Ravindranatha BM, Reddy SM. Effect of single and double dose of PGFâ‚‚Î± on oestrus synchronization in purebred Holstein Friesian cows. Indian J of Anim Sci. 2012;69(12). Accessed October 23, 2025. https://epubs.icar.org.in/index.php/IJAnS/article/view/22017