Hooge, Danny M. “Meta-Analysis of Broiler Chicken Pen Trials Evaluating Dietary Mannan Oligosaccharide, 1993-2003”. International Journal of Poultry Science 3, no. 3 (February 15, 2004): 163–174. Accessed October 28, 2026. https://ijpsjournal.org/ijps/article/view/160.