Naslov
Alternative protein sources for environmentally friendly farming of European sea bass in the Adriatic Sea

Autori
Lepen Pleić, Ivana ; Bušelić, Ivana ; Hrabar, Jerko ; Žuvić, Luka ; Talijančić, Igor ; Žužul, Iva ; Pleadin, Jelka ; Grubišić, Leon ; Šegvić-Bubić, Tanja

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
14th International Aquaculture Conference, Book of Abstracts / Filić, Želimir - : Hrvatska gospodarska komora (HGK), 2023, 109-109

Skup
14th International Aquaculture Conference

Mjesto i datum
Vukovar, Hrvatska, 29.03.2023. - 31.03.2023

Vrsta sudjelovanja
Poster

Vrsta recenzije
Domaća recenzija

Ključne riječi
European seabass, insect meal, poultry by-product meal, sustainable aquafeeds

Sažetak
Increasing demand for high value fish species and increasing pressure on forage fish challenge aquaculture to ensure sustainable growth by replacing fish derivatives in aquafeeds with novel ingredients such as plant and terrestrial animal proteins without compromising the economic value and quality of the final fish product. In order to develop sustainable feeds and feeding protocols for environmentally friendly Adriatic fish farming, experimental diets containing poultry by-product and/or insect meal as a partial substitute for commonly used fish or plant derivatives, were formulated and their effect on growth performance and overall fitness of farmed subadult European seabass were tested and compared. Our results demonstrated that plant-based diets supplemented with insect meal singly or in combination with poultry by-product meal have great potential as an alternative feed for E. sea bass, without compromising growth performance, intestinal homeostasis and overall fitness, while maintaining the nutritional value of fillets for human consumption. These diets were also found to be the most economically sustainable options, as they had the lowest estimated production costs compared to diets with higher percentage of fish or plant derivatives. Finally, this study also demonstrated the importance of animal proteins in diets for E. sea bass, as the addition of small amount of insect meal and poultry by-product significantly improved all parameters measure compered to not supplemented plan-based diet. Since animal proteins are irreplaceable for carnivorous fish species, it is important to continue the search for optimal alternatives to advance the development of environmentally and economically sustainable aquaculture.

Izvorni jezik
Engleski

Znanstvena područja
Biotehnologija

POVEZANOST RADA