Effects of dietary sodium butyrate on growth performance, antioxidant capacity, intestinal histomorphology and immune response in juvenile Pengze crucian carp (Carassius auratus Pengze)

Abstract

The current study was done to assess the effects of dietary sodium butyrate (SB) on growth performance, antioxidative capacities, intestinal microvilli morphology and intestinal immune response in juvenile Pengze crucian carp (Carassius auratus Pengze). Three treated diets and a control containing 0, 1,000, 2,000, 4,000 mg/kg SB (CON, SB1, SB2, SB3) were fed for juvenile Pengze crucian carp (5.49 ± 0.41 g) for 8 weeks. The results revealed that fish in SB2 and SB3 groups showed significantly higher growth performance compared to the control (P 0.05). The intestinal total antioxidant capacity, catalase and superoxide dismutase activities were significantly enhanced in SB groups compared to the control (P 0.05). Conclusively, our results showed the positive effects of the SB in Pengze crucian carp diets to improve the growth, intestinal microvilli morphology and intestinal immune response.

Keywords

• Sodium butyrate
• Growth performance
• Antioxidative capacities
• Intestinal immune response
• Carassius auratus Pengze