The growth trial lasted 45 days with Nile tilapia (9.6 g) in which 4 diets were evaluated with P/E levels of 18, 19, 20 and 21 kg/MJ with an apparent satiety feeding model (100 % daily feed intake) and the same diets with a 30 % restriction feeding model (70 % daily feed intake). The results of the experiment indicate that the diet with a P/E ratio of 18 kg/MJ supplied with a 30 % restriction improved feed consumption and the use of protein for growth (p<0.05). The profitability analysis determined that the feeding strategy (3H:2L) obtained the best benefit/cost ratio (1.11) and that this condition, once evaluated for 5 years under scenarios of increases in the cost of feed and in the sale price of the product, allowed obtaining increases in the benefit/cost ratio comparable to the performance of the baseline (initial production condition) in values of 1.2-1.4, however, the net present value under these conditions presents a downward trend. In conclusion, the profitability analysis was positive for the evaluation of the project after five-year period of production in terms of the benefit/cost ratio, besides obtained results varied depending on the quality of the diet and on the conditions of the analyzed productive system. Therefore, the usefulness of this modeling could be feasible to produce juveniles of commercial tilapia lines with an average weight of 150 g.