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

• Tipo: Artigo em Revista Científica Internacional
• Data: 2015

Autores

Ines Guerreiro (Autor) Outra; Ana Couto (Autor) Outra; Amalia Perez Jimenez (Autor) Outra; Aires Oliva Teles (Autor) FCUP; Paula Enes (Autor) Outra

Revista

Título: British Journal of Nutrition

Vol. 114

Páginas: 1975-1984

ISSN: 0007-1145

Editora: Cambridge University Press

Indexação

ISI Web of Knowledge - 35 Citações

Scopus - 37 Citações

Classificação Científica

FOS: Ciências médicas e da saúde > Ciências da saúde

Outras Informações

ID Authenticus: P-00J-XR4

DOI: 10.1017/s0007114515003773

Abstract (EN): 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 FM:70 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.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 10