Prebiotics effect on immune and hepatic oxidative status and gut morphology of white sea bream (Diplodus sargus)

• Type: Article in International Scientific Journal
• Date: 2016

Authors

Guerreiro, I (Author) Other; Ana Couto (Author) FCUP; Machado, M (Author) Other; Castro, C (Author) Other; Pousao Ferreira, P (Author) Other; Oliva Teles, A (Author) FCUP; Enes, P (Author) FCUP

Journal

Title: Fish and Shellfish Immunology

Vol. 50

Pages: 168-174

ISSN: 1050-4648

Publisher: Elsevier

Indexing

ISI Web of Knowledge - 70 Citations

Scopus - 76 Citations

Other information

Authenticus ID: P-00K-4W8

DOI: 10.1016/j.fsi.2016.01.023

Abstract (EN): The aim of this study was to evaluate the effects of short-chain fructooligosaccharides (scFOS), xylooligosaccharides (XOS) and galactooligosaccharides (GOS) on immune and hepatic oxidative status, and gut morphology of white sea bream juveniles. Four diets were formulated: a control diet with fish meal (FM) and plant feedstuffs (PF) (30FM:70PF) and three test diets similar to the control but supplemented with 1% of scFOS, XOS or GOS. Dietary prebiotic incorporation did not affect total blood cell counts, hematocrit, hemoglobin, red blood indices or differential white blood cell counts. Fish fed GOS had lower ACH50 and nitric oxide than fish fed control diet. XOS enhanced immune status through the increase in alternative complement pathway (ACH50), lysozyme and total immunoglobulin. The higher activity of glucose 6-phosphate dehydrogenase in fish fed FOS compared to the other dietary groups was the only related antioxidant enzyme affected by prebiotics in the liver. GOS ameliorated the precocious adverse effects of PF based diet on gut histomorphology, as denoted by the lower incidence of histological alterations in fish fed GOS for 15 days. In conclusion, XOS and GOS at 1% might have potential to be used as prebiotics in white sea bream juveniles.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 7