ZHAO, P Y, et al. “Impact of Dietary Enzyme Complex on Growth Performance, Nutrient Digestibility and Fecal Noxious Gas Emissions in Growing Pigs”. The Indian Journal of Animal Sciences, vol. 86, no. 9, Sept. 2016, pp. 1041–1045, https://doi.org/10.56093/ijans.v86i9.61578.