Dietary Supplementation with Hydrolyzable Tannin Improves Nonspecific Immune Responses, Intestinal Morphology, and Disease Resistance against Vibrio alginolyticus in Whiteleg Shrimp

Figure 2

Nonspecific immune responses of whiteleg shrimp fed with different concentrations of hydrolyzable tannin over 28 days. Control without hydrolyzable tannin (C), 1 g/kg hydrolyzable tannins (T1), 2 g/kg hydrolyzable tannins (T2), 4 g/kg hydrolyzable tannins (T4), or 8 g/kg hydrolyzable tannins (T8) during 28-day feeding: (a) total hemocyte count; (b) phagocytic rate; (c) phagocytic index; (d) respiratory burst; and (e) PO activity; values are presented as mean ± standard deviation (n = 5). Significant differences () between treatments are indicated by the different letters above the bars.

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