Could Dietary Black Soldier Fly Meal Inclusion Affect the Liver and Intestinal Histological Traits and the Oxidative Stress Biomarkers of Siberian Sturgeon (Acipenser baerii) Juveniles?
Articolo
Data di Pubblicazione:
2020
Abstract:
The trial investigates if a highly defatted Hermetia illucens larva meal (H) at two dietary inclusion levels and a vegetable protein based diet (VEG) influences the normal gut and liver histology and the oxidative stress biomarkers in liver and kidney of Siberian sturgeon juveniles. Fish were fed four diets: one control diet (H0) containing 70% of fishmeal (FM), two diets including 18.5% (H185) and 37.5% (H375) of highly defatted H in substitution for 25% and 50% of FM, and one vegetable protein based diet (VEG). At the end of a growth trial, 12 fish per treatment were sacrificed by over-anaesthesia to collect 12 liver and 5 distal intestine samples for histological analyses, as well as 12 liver and kidney samples for biochemical analyses. The H and VEG diets did not significantly affect the histology of liver and distal intestine, but alterations of the oxidative stress biomarkers were detected at the highest inclusion level of H (37.5%). In order to avoid unfavorable effects on the fish health, an inclusion level up to 18.5% of H is recommended for Siberian sturgeon juveniles.
Tipologia CRIS:
03A-Articolo su Rivista
Keywords:
gut histochemistry; Hermetia illucens; insect meal; liver histology; oxidative stress biomarkers; Siberian sturgeon
Elenco autori:
Caimi, C; Gasco, L; Biasato, I; Malfatto, V; Varello, K; Prearo, M; Pastorino, P; Bona, MC; Francese, DR; Schiavone, A; Elia, AC; Dörr, AJM; Gai, F
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