González Maldonado J., Rangel Santos, R., & Rodríguez de Lara R. (2015). Superovulatory response and embryo quality of Holstein heifers treated with one or two injections of somatotropin. Revista Colombiana De Ciencias Pecuarias, 28(4), 339–346. https://doi.org/10.17533/udea.rccp.324940