The purpose of this study was to evaluate
the effects of feeding corn naturally contaminated with
aflatoxin B1 (AFB1) and aflatoxin B2 (AFB2) on serum
biochemical parameters, hepatic antioxidant enzyme
activities, and pathological lesions of broilers. In total,
1,200 Cobb male broilers were randomly allocated into
5 treatments, with 8 replicates per treatment and 30
birds per replicate, in a 42-d experiment. The dietary
treatments were as follows: control, 25, 50, 75, and 100%
contaminated corn groups. Results showed that serum
aspartate aminotransferase activity in the 75 and 100%
contaminated groups were higher than that in the control
group on d 21 (P < 0.05). Decreased content of
hepatic total protein and increased activities of hepatic
glutathione reductase and glutathione-S-transferase
were observed as the percentage of contaminated corn