Influence of Biofloc technology on economic evaluation of culturing Oreochromis niloticus reared at different stocking densities and feeding rates.

The present work aimed to investigate the effect of Biofloc technology at different densities (60 &80 fish/m3) and feeding rates (2% & 3%) Oreochromis niloticus vs control clear water groups on growth performance protein utilization, then estimation economic evaluation production scale (3000 m3) based output work. A 20-week study was performed from June October 2019. Triplicate four once were used. All had additional carbohydrates diets composed molasses rice brane (1:1) Circular 250 Liter tanks with 200 Results feed conversion ratio in used estimate (Feddan 3000 m3 net volume). Generally, improved performance, utilization achieved more estimated income than 9/1 provide consumption.