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The objective of this study was to analyze the influence of the addition of jundia (Rhamdia quelen) waste meal in the diet of this species, on plasmatic biochemistry, liver and digestive parameters. Experiment I (EXP I) compared diets with 30% of meat and swine bones (FCO), Jundia carcass meal with viscera (FCJCV), Jundia carcass meal without viscera (FCJSV) and full Jundia meal (FJI). In experiment II (EXP II), different FCJCV levels were tested (0, 3.75, 7.5, 15, and 30%). Total circulating proteins, cholesterol, triglyceride, glucose, albumin and amino acids were quantified in plasma. Glucose, ammonia, total protein, glycogen, amino acids and transaminases were analyzed in the liver. The acid protease activity was determined in the stomach, and trypsin and chymotrypsin activity were established in the intestine. EXP I, found a lower glucose concentration in plasma and alanine aminotransferase (ALT) in the liver for FCJSV treatment and higher levels of these parameters for FCO treatment. The activity of acid protease and chymotrypsin were lower for FCO and higher for FCJCV. In EXP II, rates of free amino acids and total cholesterol in plasma increased with increasing levels FCJCV dietary. The incorporation of Jundia waste meal diet modified plasmatic biochemistry, liver and digestive parameters of Jundia juveniles, but these changes did not influence the fish health, demonstrating its nutritional quality and efficiency in fish diet.

Incorporação de farinhas de resíduos de Jundiá na dieta: bioquímica plasmática, parâmetros hepáticos e digestivos