Effects of commercial synbiotic Biomin®IMBO on growth performance, some biochemical parameters and skin mucosal immunity in crucian carp (Carassius carassius)

In this study, the effects of commercial synbiotic Biomin®IMBO at  1 and 5 g kg-1 incorporated in control diet on growth performance, some biochemical parameters and skin mucosal immunity was investigated in crucian carp (Carassius carassius). Fish (8.03 ±0.36 g) were randomly distributed among nine aquaria with 12 fish per each aquarium and fed different diets for 45 days. With 5 g kg-1synbiotic, the growth rate increased significantly in comparison with the control group (P < 0.05). When fish administrated with both treatment diets the glucose and cholesterol levels in fish serum significantly decreased in comparison with the control group (P < 0.05). Similarly, lysozyme and protease activities in fish skin mucus of both treatment groups increased significantly compared to the control group (P < 0.05). Based on the current results, supplementation of synbiotic Biomin®IMBO, especially at 5 g kg-1 can significantly enhance the growth performance, some biochemical parameters, and skin mucosal immunity in crucian carp.