AVALIAÇÃO DA QUALIDADE DE CARNE EM PINTADO AMAZÔNICO SUPLEMENTADO COM RACTOPAMINA NA FASE FINAL DE CRESCIMENTO

The aim of this study was to evaluate the traits of meat quality of the hybrid catfish (Pseudoplatystoma reticulatum x Leiarius marmoratus) fed diets containing ractopamine for different periods in the final growth stages. The fish were subject to supplementation with ractopamine 20 mg kg-1 ration in the diet for four periods (0, 15, 30 and 45 days). The traits of pH, colors L* and a* after slaughter, and fillet color L* after defrosting were influenced significantly by the period of supplementation with additive in the diet. Supplementation of 20 mg kg-1 of ractopamine in the diet of the hybrid catfish during 15, 30 and 45 days changes the quality traits of the fillet.