Waldroup P, Fritts C, Keen C, Yan F. The Effect of Alpha-galactosidase Enzyme with and Without Avizyme 1502 on Performance of Broilers Fed Diets Based on Corn and Soybean Meal. Int. J. Poult. Sci. 2005;4(12):920–937. doi:10.3923/ijps.2005.920.937