Title: Candidata a titolo di Phd

Association/Company: Università di Bologna

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Speech session
Circularity and Sustainability in Food Production

Speech
Synergistic Benefits of Fishery and Aquaculture by-product and Nannochloropsis sp. in diet for European Seabass Juvenile

Abstract
Five experimental diets were formulated to replace wild fishmeal (FM), wild fish oil (FO) and soy protein using fisheries, aquaculture by-product (BP) and microalgae (MIC). European seabass juveniles were reared and fed in recirculating system for 88 days. At the end, growth indexes, feed intake (FI), proximal composition, nutritional index, apparent digestibility, somatometric indexes, blood plasma biochemistry, digestive enzymes activity and gut microbiota composition were evaluated. Growth, digestibility, and nutritional performance were not affected by FM and FO and soy replacement using BP and MIC. Less than 50% of MIC and total replacement of FM and FO with BP have positive effects on enzyme activity. Moreover, inclusion of BP and MIC had positive effects on the microbiota richness and abundance.