Almeida, Edison de, et al. “Effect of Probiotic on the Development of Piglets Challenged With Escherichia Coli”. Brazilian Journal of Veterinary Research and Animal Science, vol. 49, no. 1, Feb. 2012, pp. 57-66, https://doi.org/10.11606/issn.2318-3659.v49i1p57-66.