as shown in table 3, as the ratio of contaminated corn increased, the BW of broilers decreased. compared with the control, the BW of broilers in the 100% contaminated group desreased significantly. there was no influence on the BW of broilers on d 42. no difference was shown in the absolute and relative weights of livers among treatments on d 21. however, the absolute weight of liver in the 25% contaminated group was lower (p>0.05) than that in the 50, 75, and 100% contaminated groups on d 42.