Effect of replacing dietary Caridina nilotica (Fishmeal) with Arthrospira platensis on water quality parameters during the culture of Oreochromis niloticus fingerlings

Abstract

This study was designed to investigate the effect of replacement of Caridina nilotica with Arthrospira platensis at four different levels: 10%, 20%, 50% and 100%, as T1, T2, T3 and T4 respectively on water quality parameters, monitored for 8 weeks in triplicate glass tanks with 300 fingerlings of Oreochromis niloticus fingerlings. No significant differences were found throughout the experimental period (p>0.05.). Temperature ranged from 27.880C to 28.020C, DO was 7.22 to 7.41mgll-1 , pH 7.473 to 7.561 and Total Ammonia and Nitrite 0.37-0.81 respectively. All were within the normal range for tilapia fingerlings which enabled them to grow significantly.