Benefícios da adição de óleo bruto de Bacuri (Attalea phalerata mart. ex Spreng) no desenvolvimento e coloração do peixe Mato grosso (Hyphessobrycon eques, Steindachner 1882)

Abstract

Bacuri pulp oil (Attalea phalerata Mart. ex Spreng) has medicinal properties due to a high concentration of carotenoids and palmitoleic acid in the Omega-7 group that may benefit fish health and well-being. The objective of this study was to evaluate the benefits of inclusion of bacuri oil in the development and coloration of Mato Grosso fish (Hyphessobrycon eques Steindachner 1882). It was used 51 specimens distributed in four 10L units in an individual recirculation system and thermostated water at 28 ° C. During the 60 day test the fish were fed commercial diets (DC) and commercial diets plus bacuri oil(5g.kg-1) (DB). At the end of the experimental period, survival, growth, coloration and thermogenicity were evaluated. Data were analyzed by the T test (P> 0.05). The use of bacuri oil presented greater length in relation to the group DC. Consumption was not affected by the increase of bacuri oil, having no effect on the palatability of the diet. However, the survival of the assay was 73% for DB and 88% for DC. No change in color and thermogenicity of fish with inclusion of bacuri oil was observed. The DB fish condition factor was higher than the DC, which demonstrates the capacity to promote fish welfare. It is concluded that in the dose used the bacuri oil is not recommended for the fishes as a supplement to optimize the coloration