EsturgeonV1, Main, Exploration, bibRecord, 000448

Effects of poly-β-hydroxybutyrate (PHB) on Siberian sturgeon (Acipenser baerii) fingerlings performance and its gastrointestinal tract microbial community.

Identifieur interne : 000448 ( Main/Exploration ); précédent : 000447; suivant : 000449

Effects of poly-β-hydroxybutyrate (PHB) on Siberian sturgeon (Acipenser baerii) fingerlings performance and its gastrointestinal tract microbial community.

Auteurs : Ebrahim H. Najdegerami [Belgique] ; Tiet Ngoc Tran ; Tom Defoirdt ; Massimo Marzorati ; Patrick Sorgeloos ; Nico Boon ; Peter Bossier

Source :

FEMS microbiology ecology [ 1574-6941 ] ; 2012.

RBID : pubmed:22066757

English descriptors

KwdEn :
- Animals, Aquaculture (methods), Bacteria (drug effects), Bacteria (growth & development), Dietary Supplements, Fishes (growth & development), Fishes (microbiology), Gastrointestinal Tract (microbiology), Hydroxybutyrates, Polyesters, Polymerase Chain Reaction, Sequence Analysis, DNA, Siberia.
MESH :
- chemical : Hydroxybutyrates, Polyesters.
- geographic : Siberia.
- drug effects : Bacteria.
- growth & development : Bacteria, Fishes.
- methods : Aquaculture.
- microbiology : Fishes, Gastrointestinal Tract.
- Animals, Dietary Supplements, Polymerase Chain Reaction, Sequence Analysis, DNA.

Abstract

Poly-β-hydroxybutyrate (PHB) is a natural polymer that can be depolymerized into water-soluble short-chain fatty acid monomers. These monomers can act as microbial control agents. In this study, the effects of partially replacing the diet of Siberian sturgeon fingerlings with 2% and 5% PHB were investigated. Replacing 2% of the diet with PHB improved weight gain, specific growth rate (SGR) and survival in the sturgeon fingerlings during the 10-week experimental period. Community-level physiological profiling and PCR-denaturing gradient gel electrophoresis (PCR-DGGE) were used to analyze the microbial community diversity and community organization in the sturgeon gastrointestinal tract. DGGE analysis revealed that PHB affected the intestinal microbial species richness and diversity. The highest species richness was observed with 2% PHB. DNA sequencing of the dominant bands in 2% and 5% PHB treatments revealed that PHB stimulated bacteria belonging to the genera Bacillus and Ruminococcaceae. Principal component analysis, Lorenz curves and the Shannon index of Biolog Ecoplate data revealed that aerobic metabolic potential of the bacterial community was different in the PHB-treated fishes as compared with the control situation. Overall, our results indicate that PHB act as microbial control agents and replacement of 2% of Siberian sturgeon fingerling diet with PHB has beneficial effects.

DOI: 10.1111/j.1574-6941.2011.01194.x
PubMed: 22066757

Affiliations:

Le document en format XML

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<front><div type="abstract" xml:lang="en">Poly-β-hydroxybutyrate (PHB) is a natural polymer that can be depolymerized into water-soluble short-chain fatty acid monomers. These monomers can act as microbial control agents. In this study, the effects of partially replacing the diet of Siberian sturgeon fingerlings with 2% and 5% PHB were investigated. Replacing 2% of the diet with PHB improved weight gain, specific growth rate (SGR) and survival in the sturgeon fingerlings during the 10-week experimental period. Community-level physiological profiling and PCR-denaturing gradient gel electrophoresis (PCR-DGGE) were used to analyze the microbial community diversity and community organization in the sturgeon gastrointestinal tract. DGGE analysis revealed that PHB affected the intestinal microbial species richness and diversity. The highest species richness was observed with 2% PHB. DNA sequencing of the dominant bands in 2% and 5% PHB treatments revealed that PHB stimulated bacteria belonging to the genera Bacillus and Ruminococcaceae. Principal component analysis, Lorenz curves and the Shannon index of Biolog Ecoplate data revealed that aerobic metabolic potential of the bacterial community was different in the PHB-treated fishes as compared with the control situation. Overall, our results indicate that PHB act as microbial control agents and replacement of 2% of Siberian sturgeon fingerling diet with PHB has beneficial effects.</div>
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Effects of poly-β-hydroxybutyrate (PHB) on Siberian sturgeon (Acipenser baerii) fingerlings performance and its gastrointestinal tract microbial community.

Effects of poly-β-hydroxybutyrate (PHB) on Siberian sturgeon (Acipenser baerii) fingerlings performance and its gastrointestinal tract microbial community.

Source :

English descriptors

Abstract

Links toward previous steps (curation, corpus...)

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