Ben?tez, D., Yanet Ricardo, A. Romero, O. Guevara, Verena Torres, Alina Ram?rez, B. P?rez, M. Miranda, J. Guerra, and C. Olivera. 2009. “Alternatives for Sustainable Beef Production in the Cauto Valley”. Cuban Journal of Agricultural Science 43 (4). https://www.cjascience.com/index.php/CJAS/article/view/461.