Costa, Fernando Guilherme Perazzo, C.C. Goulart, D.F. Figueiredo, C.F.S. Oliveira, and J.H.V. Silva. “Economic and Environmental Impact of Using Exogenous Enzymes on Poultry Feeding”. International Journal of Poultry Science 7, no. 4 (February 15, 2008): 311–314. Accessed September 22, 2025. https://ijpsjournal.org/index.php/ijps/article/view/951.