L. Vargas-Rodriguez, L. Duran-Melendez, J. Garcia-Masias, J. Arcos-Garcia, B. Joaquin-Torres, and M. Ruelas-Inzunza, “Effect of Probiotic and Population Density on the Growth Performance and Carcass Characteristics in Broiler Chickens”, Int. J. Poult. Sci., vol. 12, no. 7, pp. 390–395, Jun. 2013, doi: 10.3923/ijps.2013.390.395.