Supplementation of NSP Enzymes and Organic Chromium in Low-Protein Feed on Carbohydrate Utilization in Colossoma macropomum

This paper was not presented at the conference.

Abstract

This paper was not presented at the conference.

Feed is an important factor in Colossoma macropomum aquaculture because feed costs reach 80% of production costs. Carbohydrates are the cheapest source of food energy. However, fish have limited ability to digest feed carbohydrates and the availability of the insulin hormone to transfer glucose into cells as an energy source. This study aimed to evaluate the effectivity of supplementation of NSP enzymes and organic chromium in low-protein feed to increase carbohydrate utilization in C. macropomum. Groups of C. macropomum were fed diets supplemented with different levels of NSP enzymes (0 and 1 g/kg) and organic chromium (0, 1, and 2 mg/kg) for 60 days. The study focused on measuring postprandial blood glucose levels, antioxidant activities, and glycogen. The results revealed significant outcomes. Postprandial blood glucose levels showed that the highest blood glucose levels with dietary of NSP enzymes. The antioxidant activities response showed significantly higher superoxide dismutase and glutathione peroxide activity at 1 g/kg of dietary NSP enzymes and 1 mg/kg of dietary organic chromium, with the lowest malondialdehyde levels observed at 1 g/kg of dietary NSP enzymes and 1 mg/kg of dietary organic chromium. C. macropomum fed diets containing 1 g/kg of dietary NSP enzymes and 1 mg/kg showed notable improvements in liver and muscle glycogen. These findings provide valuable insights into the effect of dietary NSP enzymes and organic chromium supplementation on C. macropomum, contributing to the development of optimized nutritional strategies for enhancing growth performance in aquaculture production systems.