Fig. 6.

Effect of probiotic supplementation on antioxidant enzyme activities of aging animals during 2 months of feeding on respective diet regimen: BD, basal diet; SM, skim milk; LR, L. rhamnosus fermented milk. SOD activity in a RBCs and b liver. Catalase activity in c RBCs and d liver and glutathione peroxidase activity in e RBCs and f Liver. Values are mean ± SEM; values with different letters are significantly different within the group at P < 0.05; *P < 0.05 for treatments fed for 1 versus 2 months