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Effects of yellow passion fruit (Passiflora edulis) residue in diets for Oreochromis niloticus in a recirculating aquaculture system with integrated lettuce cultivation

The inclusion of agro-industrial residues in fish diets represents a sustainable strategy for modern aquaculture. This study investigated the effects of incorporating yellow passion fruit (Passiflora edulis) residue into diets for Nile tilapia (Oreochromis niloticus) fingerlings reared in a recircul...

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Autores principales: Costa Vasconcelos, Vivian, Melgaço Heluy, Guilherme, Angélica da Silva, Maria, de Oliveira, Jerusa Maria, Neves Santisteban, Anita, Teodósio Cavalcante Junior, Ricardo Fábio, Costa Dantas, Priscylla, Lima Santos, Elton, Soares, Emerson Carlos
Formato: Artículo
Lenguaje:inglés
Publicado: 2024
Materias:
Agro-Industrial Residues
Recirculating Aquaculture Systems
Water Quality
Antioxidant Enzymes
Sustainable Aquaponics
Resíduos Agroindustriais
Sistemas de Recirculação de Água
Qualidade da Água
Enzimas Antioxidantes
Aquaponia Sustentável
Residuos Agroindustriales
Sistemas Acuícolas de Recirculación
Calidad del Agua
Acuaponía Sostenible
Acceso en línea:https://dialnet.unirioja.es/servlet/oaiart?codigo=10265549
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Sumario:The inclusion of agro-industrial residues in fish diets represents a sustainable strategy for modern aquaculture. This study investigated the effects of incorporating yellow passion fruit (Passiflora edulis) residue into diets for Nile tilapia (Oreochromis niloticus) fingerlings reared in a recirculating aquaculture system (RAS) integrated with lettuce (Lactuca sativa) cultivation. Over a 60-day period, 12 tanks were used in a completely randomized design with four treatments: T1 (12% yellow passion fruit residue (PFR) with lettuce), T2 (12% PFR without lettuce), T3 (0% PFR with lettuce), and T4 (0% PFR without lettuce), each with three replicates and a stocking density of 25 fish per tank (3.75 ± 0.40 g; 5.84 ± 0.50 cm). The presence of lettuce significantly reduced ammonia levels, improving water quality. No significant differences in growth performance were observed among treatments. Antioxidant capacity was enhanced by the inclusion of 12% PFR, showing higher activities of catalase, superoxide dismutase and glutathione S-transferase. Despite a reduction in intestinal villi height in fish fed 12% PFR, no negative impacts on growth performance were identified. The study demonstrates that integrating lettuce into the RAS is effective for water treatment and that using up to 12% PFR in diets is a sustainable, functional, and promising approach for Nile tilapia, contributing to more efficient and environmentally responsible production systems.

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