Evaluation of metabolizable nutrient values of Tomato Pomace (TP) in Nile tilapia (Oreochromis niloticus)

Abstract

This study was conducted to investigate the metabolizable Nutrient values of Tomato Pomace (TP) in Nile tilapia (Oreochromis niloticus). Ninety days (three month) old fish were divided into 2 groups, each group consists from 12 aquariums, and each aquarium contains 12 Nile tilapia fingerlings whereas the excreta could be collected. Fish in each group were randomly fed basal diet or basal diet mixed Tomato Pomace (TP) at the ratio of 80:20. Their excreta with collected daily for 30 days. Diets and excreta of fish were analyzed for crude protein and gross energy. The metabolizable protein and metabolizable energy of Tomato Pomace (TP) were estimated by using different methods.rnThe results showed that metabolizable nutrient values of Tomato Pomace (TP) in fish were 0.81% of protein intake, 0.98 kcal/g of metabolizable energy, 0.27% of crude fiber intake, 0.32% of Ether Extract intake and 0.87% of nitrogen free extract (NFE) of intake, respectively.