Naslov
Is intestinal microbial community of juvenile European sea bass affected by diet?

Autori
Bušelić, Ivana ; Lepen Pleić, 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, 118-118

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
insect meal, poultry by-product meal, sustainable aquafeeds, microbiome, 16S rRNA

Sažetak
Recently, gut microbiome has been at the center of nutritional aquaculture research, as it has been confirmed to regulate nutrient uptake and changes in fish metabolism. Such functional flexibility of the intestinal microbiota likely increases the adaptability of fish digestion and studies of the gut microbiome are becoming a necessity for dietary research in aquaculture. Within this study, the effect of experimental diets on intestinal microbiome of juvenile European sea bass was assessed after 120-day feeding trial. Experimental diets contained poultry by-product and/or insect meal as a partial substitute for commonly used fish or plant derivatives. The results demonstrated a resilience of intestinal microbiota of juvenile E. sea bass, regardless of the tested diet. These results are in contrast to our study of subadult E. sea bass using the same experimental diets, where 16S rRNA sequencing revealed each treatment group had different gut microbial communities. It is interesting to note that the overall growth performance of juveniles was poorer on plant-based diets, compared to fish-based diets within this research, while the opposite was confirmed for subadults. There is a possibility that changes within the intestinal microbiota of subadults increased their digestive adaptability and aided in better performance of alternative plantbased diets supplemented with poultry by-product and/or insect meal, while this effect was missing in juvenile E. sea bass.

Izvorni jezik
Engleski

Znanstvena područja
Biotehnologija

POVEZANOST RADA