Rodríguez, M., G. Milián, A. j. Rondón, R. Bocourt, A. Beruvidez, and E. Crespo. “Evaluation of a Probiotic Mixture in the Started Birds Feeding of Heavy Pure Breeds B4 in a Production Unit”. Cuban Journal of Agricultural Science, vol. 49, no. 4, Mar. 2016, https://www.cjascience.com/index.php/CJAS/article/view/493.