D’Ascanio, G. N., A. Elías, Angela J. Flores, R. Rodríguez, and F. Herrera. 2016. “Effect of the Supplementation With a Ruminal Protein Activator on Weight Gain of Steers Fed Rice Straw”. Cuban Journal of Agricultural Science 50 (2). https://www.cjascience.com/index.php/CJAS/article/view/611.