| Influence of the diet on microbial diversity of faecal and gastrointestinal contents in gilthead sea bream (Sparus aurata) and intestinal contents in goldfish (Carassius auratus). | |
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MedLine Citation:
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PMID: 21692817 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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Fish intestinal microbiota changes with diet and this effect is of particular interest considering the increasing substitution of fish meal by plant protein sources. The objective of this work was to study the effects of partial substitution of fish meal with lupin and rapeseed meals on gut microbiota of the gilthead sea bream (Sparus aurata) and in goldfish (Carassius auratus). Faecal, gastrointestinal and intestinal contents were characterized by culture-based and molecular methods. Vibrionaceae was high in faeces and in the intestine of sea bream, while a more diverse microbiota was retrieved from the stomach, where Bacillales and Flavobacteriaceae appeared to be influenced by the diet. PCR-DGGE profiles revealed high diversity of the microbiota transiting in the sea bream digestive tract, with a shift between gastric and intestinal communities, specially in the group fed with lupin meal. The goldfish was different, with predominance of Aeromonas spp., Shewanella putrefaciens and Staphylococcus spp. among the aerotolerant cultivable bacteria. The culture-independent methods revealed the presence of anaerobes like Cetobacterium somerae, and that of Vibrio spp., likely in a viable but non-cultivable state. There was a trend towards decreasing diversity in goldfish microbiota with the partial substitution by lupin, which seemed to inhibit some taxa. |
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Authors:
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Flávia Cristina de Paula E Silva; Jacques Robert Nicoli; José Luiz Zambonino-Infante; Sadasivam Kaushik; François-Joël Gatesoupe |
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Publication Detail:
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Type: JOURNAL ARTICLE Date: 2011-6-21 |
Journal Detail:
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Title: FEMS microbiology ecology Volume: - ISSN: 1574-6941 ISO Abbreviation: - Publication Date: 2011 Jun |
Date Detail:
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Created Date: 2011-6-22 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 8901229 Medline TA: FEMS Microbiol Ecol Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Copyright Information:
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© 2011 Federation of European Microbiological Societies. Published by Blackwell Publishing Ltd. All rights reserved. |
Affiliation:
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Departamento de Microbiologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil INRA, UR1067 Nutrition Métabolisme Aquaculture, F-64310 St Pée Sur Nivelle, France Ifremer, Centre de Brest, Laboratoire ARN, F-29280 Plouzané, France. |
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