Produção de concentrado proteico verde em sistema de aquaponia

Abstract

Aquaponics is the practice of integrating aquaculture with hydroponics, which consists of producing two types of food in a single system (aquatic organisms and plants) and aims to produce vegetables from products derived from fish excretion, sustainable in the environment reuse of water and not release pollutants in water sources. This production system can be used as an alternative for cultivation in regions with water scarcity at certain times of the year, as well as being an income alternative for family farming. This work aims to evaluate the development of black oat forage (Avena strigosa Schreb) in aquaponics system. The experiment was carried out at Unepe - Piscicultura of UTFPR, Campus Dois Vizinhos. The work consisted of producing Black Oats in aquaponics and hydroponics systems and evaluating the efficiency of the systems in water reuse and forage nutritional composition in these systems, over 23 days. It was observed that the treatments had no significant effect on crude protein content and neutral detergent fiber and were ineffective in the nitrification process, promoting mortality and system overload, and the treatments had a statistically significant effect (p<0.05 ) in relation to the forage cutting height in hydroponics system and in the percentages of mineral matter and neutral detergent fiber. The production of aquaponic forage with 10kg of biomass and hydroponic is possible, provided the system is properly assembled, with effective decanters of solids and biological filters and with appropriate cutting height to not influence its nutritional quality.