highly significantP < 0.001
The Tissue × Origin interaction term was highly significant for all three enzymes ( P < 0.001), indicating that the immune expression of B. lenok under different growth environments is tissue-specific. 3.5 Analysis of antioxidant parameters As shown in Figure 5 , hepatic CAT activity and GSH content in the wild group were significantly higher than in the farmed group ( P < 0.01).