RT journal article T1 Grape pomace in diets for European sea bass: influence on oxidative status, intestinal microbiota, and fillet quality A1 Martínez Antequera, Francisca Purificación A1 Simó-Mirabet, Paula A1 Heras Rodríguez, Veronica de las A1 Román, M. A1 Mancera Romero, Juan Miguel A1 Martos Sitcha, Juan Antonio A1 Moyano, F.J. A2 Biología K1 Aquafeeds K1 Grape pomace K1 Bioactive compounds K1 Antioxidant capacity K1 Polyphenols AB The use of intensive systems in aquaculture causes an increase in environmental stress agents, reducing water quality and facilitating the appearance of pathologies in individuals. In this context, the selection of ingredients is a key strategy in managing the quality of aquafeed and the cultivation of aquaculture species. Considering this, wine by-products can be a potential functional ingredient due to several particular characteristics, such as their low cost, large volumes produced, and for being a natural source of bioactive compounds with antioxidant activity. The present study developed different experiments focused on evaluating the benefits of feeding juvenile European sea bass during 5 weeks with feeds incorporating 0.4% red wine grape pomace (GP). At the end of the feeding period, potential modifications in metabolism, immunological and oxidative status, and functionality of intestinal microbiota were assessed as well as the potential protective effect against oxidation in fish fillets during 6 days of cold storage (4 °C). In addition, the preservative effect of GP on the feed when stored for a period of 12 weeks at two different temperatures (4 °C and 25 °C) was evaluated. The results demonstrated that the inclusion of GP in feeds for European sea bass prevents oxidation when stored at room temperature. In addition, a general improvement in the physiological and immunological status, as well as fillet quality, was evidenced. PB Springer Nature SN 1573-143X YR 2024 FD 2024 LK http://hdl.handle.net/10498/33649 UL http://hdl.handle.net/10498/33649 LA eng DS Repositorio Institucional de la Universidad de Cádiz RD 15-nov-2026