Fig. 4.

Effects of NaB on the anti-bacterial ability in turbot. After the feeding trial, turbot from each group were infected with E. tarda (1 × 10⁷ CFU/fish) by i.p. injection. (a) The mortality of the turbot was recorded every 6 h till 42 hpi (n = 10). (b) The viable bacteria in the spleen at 12 hpi were counted (n = 12). Values were presented as means ± SEM. Multiple comparisons were conducted with Tukey’s test. Different superscript letters indicated significant difference (P < 0.05).