Innovative raw materials to be used in aquaculture fish species feeding and the importance of fish welfare to obtain a high nutritional quality and antibiotic-free product

The present PhD project had the aim to find strategies to increase the non-specific immune defences of farming fish avoiding the use of drug, in particular antibiotics, in order to obtain a high nutritional quality products as human food. Considering that animal health is crucial to improve food and nutrition security on one side and Public Health on the other side, fish welfare is an essential factor to improve and the constantly interaction between fish surface and aquatic environment must be considered. Improving fish health means also working on fish nutrition, topic strictly connected to aquatic sustainability, based on the characterization of new raw materials to be used as protein sources in partial substitution of fish meal.