Sodium level in serum of Nile tilapia (O. niloticus)in KMnO
(a) and FCA (b) treatment group, compared with the infected group challenged withS. feraxzoospore 2x104and control group. N=8 fish/sampling time. Values are reported as mean ± SE. Values with a different letter superscript are significantly different between and within groups (p < 0.05).