Oxidative status and gut morphology of white sea bream, Diplodus sargus fed soluble non-starch polysaccharide supplemented diets

• Type: Article in International Scientific Journal
• Date: 2012

Authors

Enes, P (Author) FCUP; Perez Jimenez, A (Author) FCUP; Peres, H (Author) FCUP; Couto, A (Author) Other; Pousao Ferreira, P (Author) Other; Oliva Teles, A (Author) FCUP

Journal

Title: Aquaculture

Vol. 358

Pages: 79-84

ISSN: 0044-8486

Publisher: Elsevier

Indexing

ISI Web of Knowledge - 26 Citations

Scopus - 29 Citations

Scientific classification

FOS: Agrarian Sciences > Agriculture, Forestry, and Fisheries

Other information

Authenticus ID: P-002-6XE

DOI: 10.1016/j.aquaculture.2012.06.020

Abstract (EN): The present work aims to study the effect of a soluble non-starch polysaccharide (NSP), guar gum on white sea bream intestinal health through oxidative status and distal intestine morphology evaluation. A control diet was formulated to contain 40% crude protein, 14% crude lipids and 35% pregelatinized maize starch. Three other diets were formulated to include the same levels of all ingredients as control diet except for guar gum, which was included at 4% (diet GG4), 8% (diet GG8) or 12% (diet GG12). Compared to the control, lower catalase (CAT), superoxide dismutase (SOD) and glutathione reductase (GR) activities and higher SOD, glutathione peroxidase (GPX) and glucose-6-phosphate dehydrogenase (G6PD) activities were observed in the whole intestine of fish fed with diets GG4 and GG12, respectively. Thiobarbituric acid-reacting substances (TBARS) levels were unaffected by diet composition. No morphological alterations in the distal intestine were found among groups. Overall, data on key enzymes of the antioxidant enzymatic defense mechanism suggested that diet-induced reactive oxygen species (ROS) generation is dependent on guar gum inclusion levels and low dietary inclusion of soluble NSP (up to 4%) may have a gut oxidation stress prevention effect.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 6