Apparent digestibility of ingredients in diets for Salminus brasiliensis

Abstract

The objective of this work was to determine the nutritional value of different protein sources for "dourado" (Salminus brasiliensis). Thirty juveniles per group (33.51±1.4 g) were hand fed on a reference diet (70%) added of tested ingredients (30%) and chromium oxide III (0.1%). Apparent digestibility coefficients of the gross energy (ADC_GE), crude protein (ADC_CP) and amino acids of the tested ingredients were evaluated. Corn gluten meal yielded the best results for ADC_GE and ADC_CP (95.7 and 96.9%, respectively) amongst plant ingredients. Spray-dried blood meal yielded the best values of ADC_GE and ADC_CP amongst animal ingredients (94.1 and 96.3%, respectively). Wheat bran yielded poorest ADCs coefficients (77 for ADC_GE and 88.2% for ADC_CP).