Elmusharaf, M.A., V. Bautista, L. Nollet, and A.C. Beynen. 2006. “Effect of a Mannanoligosaccharide Preparation on Eimeria Tenella Infection in Broiler Chickens”. International Journal of Poultry Science 5 (6): 583–588. https://doi.org/10.3923/ijps.2006.583.588.