Nutritive Evaluation of Edible Trash Fish: I Analysis of Mineral Composition of Trash Fishes and Their Utilization

摘要

The commercial and industrial catch of marine fishes generally consists of edible and inedible species. Among inedible species the bulk catch of small size fishes were also included and these small fishes were commonly referred to as trash fish. Twenty three species of small fishes from fish trash were identified and studied for their mineral compositions which were collected bimonthly from fish harbour Karachi. Minerals like phosphorus, calcium, sodium, potassium, iron and magnesium were found in the trash which were analysed by spectrophotometry, flame photometry and atomic absorption techniques. The results have been explained in relation of importance of minerals found in edible fish trash and their utilization as poultry feed and other useful byproduct.