In Figure 7, the antioxidant enzyme (GSH-Px, SOD, CAT) activities of the BC group were higher than those of the CON and LA groups in the broilers' serum (P < 0.05, Figures 7A–C), whereas the level of MDA in the BC group was lower than that in the CON and LA groups (P < 0.05, Figure 7D). The gene discussed is CAT; the disease is breast cancer.