Mogollón, E. M, A. L. Jimenez, J. R. Cardona, H. J Narvaez, C. R. Quirino, and R.T. Beltrame. 2015. “Superovulatory Response in Holstein Cows and Heifers in the Chiquinquira Valley, Colombia”. Pubvet 5 (16). https://ojs.pubvet.com.br/index.php/revista/article/view/2309.