Abstract

The rapid development of aquaculture, in last decade, has made this sector one of the most important both at economic and social level gaining a main role in human nutrition, but this industry is severely limited by the lack of proteins intended for animal feed (as a competitor of human nutrition) (Wang et al. 2015). Fishery and aquaculture by-products can be considered as promising alternative feed ingredients in terms of nutritional quality and availability; however, these products are still underused resulting in economic and environmental issues (Gasco et al. 2020). At the same time, limiting the use of soy in fish diets has become necessary for the sustainability of aquaculture production. In past years, due to emerging health concern, gluten meal has become an even more significant cereal by-product of agriculture that is spreading thanks to its high protein content (Tapia-Hernández et al. 2019). The effects of total replacement of wild fish meal, (FM) fishoil (FO) and soy product (SP) by using fishery and aquaculture by-products and gluten were tested on the growth, gut health and fish quality parameters of European seabass.