Avaliação nutricional do resíduo de camarão e sua inclusão na ração de postura para codornas europeias

Abstract

This research aimed to evaluate the potential of shrimp residue flour (SRF) to be used in the feeding of European quails in the production phase, evaluating their nutritional potential. A metabolism assay was conducted using the total excreta collection method with 96 quails at 28 days of age distributed in a completely randomized design (DIC) with three treatments and four replications of eight birds. The treatments consisted of a reference diet and two test diets in which FRC replaced the reference diet by 20% and 40%. It was observed that the nutritional composition of FRC is within the variation found in the literature, differing only in the high sodium content found. In determining the metabolizable energy, it was observed that there was no significant difference between the values of apparent metabolizable energy (AME) and apparent corrected by the nitrogen balance (AMEn), using the average obtained in the two substitution levels to characterize the flour from the shrimp. For the performance experiment 200 quails were used at 28 weeks of age distributed in DIC with four treatments and five repetitions of ten birds each. The treatments consisted of a reference diet based on corn and soybean meal and three levels of inclusion, 5, 10 and 15% of SM. There was only a reduction in the nitrogen metabolism coefficient (CMN) at the inclusion level of 15% of SRF. For the variables feed consumption, egg production and egg mass, a significant worsening was observed with the inclusion of 15% of FRC in relation to the control treatment, with a linear reduction in feed consumption, egg production, egg mass and feed conversion . The results of egg quality, the inclusion of FRC in levels 5, 10 and 15% provided a significant reduction in the values of specific density and Hugh unit, and the level of 15% of FRC also promoted a reduction in the percentage and thickness of the shell. . In the regression analysis, there was a linear worsening for specific density and a linear improvement for the color of the gems. For the economic viability analysis, no significant difference was observed between treatments with the inclusion of FRC on any of the variables. It is concluded that for quails, the corrected apparent metabolizable energy of the shrimp residue flour is 2,377 kcal / kg of dry matter and that the inclusion of the shrimp residue flour in the diet for production quails can be up to 10%.