Gut morphology and hepatic oxidative status of European sea bass (Dicentrarchus labrax) juveniles fed plant feedstuffs or fishmeal-based diets supplemented with short-chain fructo-oligosaccharides and xylo-oligosaccharides.
Br J Nutr
; 114(12): 1975-84, 2015 Dec 28.
Article
em En
| MEDLINE
| ID: mdl-26435350
ABSTRACT
The effects of short-chain fructo-oligosaccharides (scFOS) and xylo-oligosaccharides (XOS) on gut morphology and hepatic oxidative status were studied in European sea bass juveniles weighing 60 g. Fish were fed diets including fishmeal (FM diets) or plant feedstuffs (PF diets; 30 FM70 PF) as main protein sources (control diets). Four other diets were formulated similar to the control diets but including 1 % scFOS or 1 % XOS. At the end of the trial, fish fed PF-based diets presented histomorphological alterations in the distal intestine, whereas only transient alterations were observed in the pyloric caeca. Comparatively to fish fed FM-based diets, fish fed PF diets had higher liver lipid peroxidation (LPO), superoxide dismutase (SOD) and catalase (CAT) activities, and lower glutathione peroxidase, glutathione reductase and glucose 6-phosphate dehydrogenase activities. In fish fed the PF diets, prebiotic supplementation decreased SOD activity and XOS supplementation further decreased CAT activity. In fish fed the FM diets, XOS supplementation promoted a reduction of all antioxidant enzyme activities. Overall, dietary XOS and scFOS supplementation had only minor effects on gut morphology or LPO levels. However, dietary XOS reduced antioxidant enzymatic activity in both PF and FM diets, which indicate a positive effect on reduction of hepatic reactive oxygen species production.
Palavras-chave
Antioxidant defences; CAT catalase; DI distal intestine; European sea bass; FM fishmeal; FMC diet FM control diet; FOS fructo-oligosaccharides; Fish health; G6PD glucose 6-phosphate dehydrogenase; GPX glutathione peroxidase; GR glutathione reductase; Intestinal histology; LPO lipid peroxidation; MOS mannan-oligosaccharides; PC pyloric caeca; PF plant feedstuffs; Plant feedstuffs; Prebiotics; ROS reactive oxygen species; SBM soyabean meal; SOD superoxide dismutase; XOS xylo-oligosaccharides; scFOS short-chain fructo-oligosaccharides
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Oligossacarídeos
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Antro Pilórico
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Estresse Oxidativo
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Glucuronatos
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Fígado
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Ração Animal
Limite:
Animals
Idioma:
En
Revista:
Br J Nutr
Ano de publicação:
2015
Tipo de documento:
Article
País de afiliação:
Portugal