A 58-day feeding trial was conducted in concrete tanks (2m x 2m x 1.25m) of 400L capacity to determine the effects of O. niloticus (3.40g + 0.04) fed pelleted diet to apparent satiation at different feeding frequencies (once (FF1) at 0900hr, twice (FF2) at 0900 and 1700 h, three (FF3) at 0900, 1300 and 1700 h and four times (FF4) 0900, 1200, 1500 and 1800 hs daily respectively. Fish were...