Utilização de farinha de polpa de manga como fonte de carboidratos na ração de tambaqui Colossoma macropomum e avaliação sensorial de hambúrguer da polpa de peixe, elaborado com farinha de manga
Bezerra, Katia Santos
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The study evaluated the growth of tambaqui, Colossoma macropomum with the inclusion of different concentrations of flour in the feed mango (20, 30, 40 and 50%) and reduction of protein (38, 33, 28 and 23%). To conduct the study, we used 240 fish in 12 separate lots, with four treatments and three repetitions each, delineated entirely random. The average weight was 5.21 g, 5.24 g, 5.19 g and 4.99 g respectively. The experiment lasted 56 days, biometrics being held regularly. Diets were fed daily and the fish were fed ad libitum. Were analyzed in relation to the performance of the following variables: specific growth rate TCE (%), biomass gain (GB), feed conversion rate (FCR), survival analysis, metabolic profile and activity of digestive enzyme. Burger tambaqui was prepared with flour adding mango concentrations: 0, 5, 10, 15 and 20% with subsequent sensory analysis. The statistic used was ANOVA, Tukey test at 5% and polynomial regression. To evaluate the sensory analysis was calculated referring to the overall quality attributes such as appearance, color, flavor, odor and texture. The performance variables showed a significant effect, with superior results with the highest concentration in the rations of flour, sleeves and lower protein. The final average weight was R20: 8.65 g; R30: 8.81 g; R40: 8.68 g; R50: 11.39 g. From the analysis of the metabolic profiles of glucose, hepatic glycogen, amino acids and total cholesterol was noted that no mobilization of metabolites to maintain the energy in the processes for fish growth. It is concluded that the best performance of tambaquis occurs with the inclusion of 50% flour and sleeve 23% protein. The metabolic profile of the fish is positively affected by protein replacement meal by mango. You can include up to 5% of flour in the preparation of mango burger tambaqui.