Effects of yeast culture on growth performance and intestinal health of American eel(Anguilla rostrata)juveniles
The aim of this experiment was to study the effect of yeast culture on the feed of Anguilla rostrata.Juvenile Anguilla rostrata with an initial weight of(32.68±2.64)g were randomly divided into two groups with three replicates per group and 16 274 fish per replicate.The CON group was fed a basal diet and the YC group was fed a diet containing 0.15％yeast culture.The experiment lasted for 90 days.The results showed that compared with the control group,the growth performance and intestinal digestive enzyme activities of Anguilla rostrata in YC group had no significant effects(P＞0.05),while the serum diamine oxidase activity and D-lactic acid level in YC group were significantly decreased(P＜0.05),which significantly changed the composition of intestinal flora,increased the relative abundance of intestinal beneficial flora,and decreased the relative abundance of potential pathogenic bacteria.The results show that 0.15％yeast culture can't improve the growth performance of Anguilla rostrata,but significantly improve the intestinal permeability and intestinal flora composition.
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