3.6. Superoxide dismutase activity
The SOD concentrations showed no significant differences
between the treatment groups and the control after 30 days of
feeding (Fig.1). However, after 60 days of feeding, the fish group fed
diet containing 108 cfu g1 L. plantarum VSG3 exhibited higher SOD
activity (P < 0.05) than those of fish fed the control and other
supplemented diets. At both time points, a slight decline in SOD
concentration was observed at higher VSG3 supplementation level
(1010 cfu g1).