INVESTIGATION OF CHANGES IN WATER QUALITY PARAMETERS BY INCREASING THE LEVEL OF DIETARY PROTEIN IN INTENSIVE POLYCULTURE OF CARPS

Abstract

Changes in water quality parameters of an intensive polyculture of carps (Catla catla, Labeo rohita and Cirhinus mrigala) by different dietary protein ingredients were assessed for a period of one year. The aim of this research was to evaluate whether decrease in the level of protein from 45% to 25% of a certain ingredient could alter various water quality parameters and hence production. Although ammonia was not significantly affected by increasing the level of these protein based ingredients but all other parameters were greatly influenced on ecology in raceways treated with different diets. The results attributed that amount and nature of ingredients; certainly have huge impact directly or indirectly on environmental condition of a pond ecosystem.