Análise de viabilidade econômica da utilização de proteína hidrolisada de frango (PHF) na alimentação da tilápia-do-Nilo (Oreochromis niloticus)

Abstract

The goal of this study was to evaluate financial-economic results from the inclusion of chicken protein hydrolysate (CPH) in Nile tilapia’s diets across productive phases. To achieve this objective, it was used the zootechnical data collected from researches performed in GEMAq (Aquaculture Management Study Group) laboratories, with CPH inclusion in 3 productive phases (post-larva to fry; fry to juvenile fish; and juvenile to adult fish). In phase 1 (fry) and 2 (juvenile fish), a short-term economic analysis was performed, but in phase 3 (termination-fattening) a short-term (GR, NR and ROI) and a long-term analysis (IRR, PV, NPV, ROR, PI, Payback and ROI) were performed. Results of fish filet yield and short-term financial return from CPH use were also evaluated. The best zootechnical results obtained from CPH inclusion were 2,50% in phase 1, 2,00% in phase 2 and 1,00% in phase 3. In order to provide context for the application of the results from a controlled environment to large scale production, it was researched the cost of capital to construct two excavated nurseries with the size of 5.000 m², production costs and feed costs with variable levels of CPH inclusion. Thus it was possible to do a short-term and a long-term evaluation, and to present better short-term results for phases 1 and 2, and long-term results for phase 3. In this phase the best result for fish fillet yield was obtained with 1% CPH. This yield was greater than any other result, analyzing the inclusion of 0% CPH or any other level of hydrolyzed protein. The best results found indicate that the increase in the survival rate, growth rate and fish filet yield generated positive repercussions in the financial-economic results in short-term and long-term. The obtained results indicate that the increase in the survival rate, growth rate and fish filet yield generated positive repercussions in the financial-economic in short-term and long-term results when using 1% CPH.