DESEMPENHO ZOOTÉCNICO E PARÂMETROS BIOQUÍMICOS DE PACUS SOB RESTRIÇÃO ALIMENTAR EM TANQUES-REDE

In this study, the objective was to analyze the produtive performance and biochemical parameters of pacus submitted to different feedind strategies. The experiment was carried out with 40 fish/m3 of initial average size of 25.5cm and initial average weight of 357.5g. Six net tanks (4m3) were used, three of them with food restriction by 15 days returning to feed in the subsequent 15 days and continuous feeding in the other three tanks for a period of 30 days. At the end of the experiment, biometry was performed to evaluate weight and length gain and blood collection by caudal vessel puncture for the analysis of glucose, triglycerides, total cholesterol and total protein. Total protein was the only biochemical parameter that presented the highest in the blood plasma of pacus submitted to food restriction. No significant difference was observed for the other biochemical parameters and produtive performance between the two pacus groups, indicating that the final performance of the animals that were under restriction was not adversely affected.