Pérez-Osorio, J., J. A. Cardona-Álvarez, V. E. Gómez-León, and R. J. Otero-Arroyo. “Relationship Between Scrotal Circumference and Parameters of Semen Quality in Male Guzerat Bulls from Puberty to 36 Months of Age Raised Pasture in the Savanah”. Ciencia Y Agricultura, vol. 13, no. 2, 2016, 5549.