Farinha de larvas da mosca-soldado-negro (hermetia illucens) em dietas para o camarão-da-amazônia (macrobrachium amazonicum)

Abstract

Investigates the feasibility of black soldier fly larvae meal (Hermetia illucens) as a partial replacement for fishmeal in diets for Amazon river prawn (Macrobrachium amazonicum), aiming to promote more sustainable aquaculture practices. The study was divided into two main chapters: the first evaluated the effects of black soldier fly larvae meal on growth performance, body composition and Vibrio spp. microbiota in the hepatopâncreas and intestine of the prawns, while the second analyzed the impact of partial fishmeal replacement on zootechnical performance, digestive enzymes activity, feeding preference and resistance of M. amazonicum to V. parahaemolyticus. The results demonstrated that replacing 25% of fishmeal with black Soldier fly larvae meal provided better zootechnical performance, with significant improvements in weight gain, specific growth rate, and feed efficiency, along with reduced loads of pathogenic Vibrio spp. Digestive enzyme quantification revealed optimized protease, lipase and amylase activities, indicating metabolic adaptation to the diet. The inclusion of black soldier fly larvae meal in the diets enhanced M. amazonicum resistance to V. parahaemolyticus. In conclusion, black soldier fly larvae meal represents a viable and sustainable alternative for M. amazonicum nutrition, contributing to reduced dependence on fishmeal while improving prawn health.