SOD1 and Hepatic fibrosis: Algandaby et al. (2017) also reported same result that after the treatment of icariin in thioacetamide-induced liver fibrosis in rats, SOD, MDA, and GSH-Px contents were restored to normal values in rats. Our results indicated that icariin exhibited antioxidant properties, because it corrected the damaging effects on liver by restoring the oxidative imbalance in broiler chickens. Experimentally, it has also been reported previously that icariin possess antioxidant activities (Ke et al., 2015).