Fig. 3

A Catalase (CAT), (B) glutathione reductase (GSH), and (C) Malondialdehyde (MDA) activities of Nile tilapia fed on control or diets supplemented with P. boryanum at 0.75 or 1.5 mg/kg. Data were expressed as a Mean ± SD. Values with a different letter superscript are significantly different between groups. Asterisks indicate levels of significance (ANOVA with post hoc Tukey test, *P < 0.05; **P < 0.01; ***P < 0.001)