Feeding Yellow Worms to Meagre: Effects on Whole-Body Fatty Acid Profile and Hepatic and Intestine Oxidative Status
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Published:2023-04-29
Issue:5
Volume:12
Page:1031
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ISSN:2076-3921
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Container-title:Antioxidants
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language:en
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Short-container-title:Antioxidants
Author:
Guerreiro Inês1ORCID, Castro Carolina1, Serra Cláudia R.12ORCID, Coutinho Filipe1, Couto Ana12, Peres Helena12ORCID, Pousão-Ferreira Pedro3ORCID, Corraze Geneviève4, Oliva-Teles Aires12ORCID, Enes Paula12ORCID
Affiliation:
1. CIIMAR—Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos s/n, 4450-208 Matosinhos, Portugal 2. Department of Biology, Faculty of Sciences, University of Porto, Rua do Campo Alegre s/n, Ed. FC4, 4169-007 Porto, Portugal 3. Portuguese Institute for Sea and Atmosphere (IPMA), Olhão Pilot Aquaculture Station, Av. 5 de Outubro, s/n, 8700-305 Olhão, Portugal 4. INRAE, University Pau & Pays Adour, E2S UPPA, UMR1419 NUMEA, 64310 Saint-Pee-sur-Nivelle, France
Abstract
This study aimed to determine the effects of dietary inclusion of Tenebrio molitor larvae (yellow worms) meal (TM) on meagre fish (Argyrosomus regius) whole-body fatty acids (FA) profile and hepatic and intestine oxidative status. For that purpose, fish were fed for 9 weeks a fishmeal-based diet (control) or diets including 10%, 20%, or 30% TM. With the increase in dietary TM level, whole-body oleic acid, linoleic acid, monounsaturated FA, and n−6 polyunsaturated FA (PUFA) increased while saturated FA (SFA), n−3 PUFA, n−3 long chain-PUFA, SFA:PUFA ratio, n3:n6 ratio, and FA retention decreased. Hepatic superoxide dismutase (SOD), glucose-6-phosphate dehydrogenase (G6PDH), and glutathione reductase (GR) activities increased and catalase (CAT) and glutathione peroxidase (GPX) activities decreased with dietary TM inclusion. Hepatic total and reduced glutathione were lower in fish fed 20% TM. Intestinal CAT activity and oxidized glutathione increased and GPX activity decreased with dietary TM inclusion. Intestine SOD, G6PDH, and GR activities increased and malondialdehyde concentration decreased in fish fed the diets with lower TM inclusion levels. Liver and intestine oxidative stress index and liver malondialdehyde concentration were unaffected by dietary TM. In conclusion, to avoid major whole-body FA changes or antioxidant status imbalances, it is recommended to limit TM to 10% inclusion in meagre diets.
Funder
Foundation for Science and Technology FCT and European Social Fund the Project ZEBRALGRE
Subject
Cell Biology,Clinical Biochemistry,Molecular Biology,Biochemistry,Physiology
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