Fig. 2

Effects of NaB on intestinal histomorphology. (a) The intestines of turbot in different groups were collected and sectioned. Fixation with H&E, the morphology of the distal intestines was observed. The images were representative of at least three independent experiments, and scale bar indicates 500 μm; (A) and (B) in the images manifests villus height and muscle layer thickness, respectively; lamina propria width is indicated by arrows. (b–d) The micromorphology, including villus height (b), lamina propria width (c), and muscle layer thickness (d) of the intestine, was evaluated (n = 6). Values were presented as means ± SEM. Multiple comparisons were conducted with Tukey’s test. Different superscript letters indicated significant difference (P < 0.05).