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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?

Authors :
Christian Caimi
Laura Gasco
Ilaria Biasato
Vanda Malfatto
Katia Varello
Marino Prearo
Paolo Pastorino
Maria Cristina Bona
Danila Raffaella Francese
Achille Schiavone
Antonia Concetta Elia
Ambrosius Josef Martin Dörr
Francesco Gai
Source :
Animals, Vol 10, Iss 1, p 155 (2020)
Publication Year :
2020
Publisher :
MDPI AG, 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.

Details

Language :
English
ISSN :
20762615
Volume :
10
Issue :
1
Database :
Directory of Open Access Journals
Journal :
Animals
Publication Type :
Academic Journal
Accession number :
edsdoj.922a614eb34ee2b48cdaf638f319c7
Document Type :
article
Full Text :
https://doi.org/10.3390/ani10010155