Oliveira, Eduardo Raele, et al. “Chito-Oligosaccharide As Growth Promoter Replacement for Weaned Piglets: Performance, Morphometry, and Immune System”. Semina: Ciências Agrárias, vol. 38, no. 5, Oct. 2017, pp. 3253-70, doi:10.5433/1679-0359.2017v38n5p3253.