Farinha de Mosca da Fruta (Ceratitis Capitata) na alimentação de alevinos de Tilápia-do-Nilo (Oreochromis niloticus)

Abstract

There is a great search for alternative foods to compose feed for aquaculture, which are capable of maintaining the nutritional quality of diets and at the same time reducing the costs of conventional ingredients. Therefore, the introduction of insect larvae into the diets of production animals, mainly monogastric animals, has been widely studied by researchers. In this sense, the objective of the present study was to evaluate the use of Fruit Fly (Ceratitis capitata) flour in feeding Nile Tilapia (Oreochromis niloticus) fry. The study was carried out in the Ichthyology Laboratory of the Department of Animal Husbandry of the Faculty of Agronomy Eliseu Maciel of the Federal University of Pelotas (UFPel), lasting 62 days, where 200 Nile tilapia fingerlings were used, randomly distributed in 20 units experimental experiments of 50 liters coupled to a water recirculation system with a biological filter, in a completely randomized design with five treatments and four replications, called: T1 (0% fruit fly flour), T2 (25% fruit fly flour), fruit fly), T3 (50% fruit fly flour), T4 (75% fruit fly flour) and T5 (100% fruit fly flour). Performance indices such as: final weight (g), weight gain (g), specific growth rate and standard and total length (cm) were analyzed through biometrics performed weekly during the experiment. According to the results found, the treatments using fruit fly flour in the diet did not show a statistically significant difference. However, they demonstrate that the incorporation of fly meal as a source of protein in the animals' diet does not alter the palatability and quality of the feed, as it did not negatively influence their performance.