| Poly-beta-hydroxybutyrate (PHB) increases growth performance and intestinal bacterial range-weighted richness in juvenile European sea bass, Dicentrarchus labrax. | |
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MedLine Citation:
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PMID: 20094715 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The bacterial storage polymer poly-beta-hydroxybutyrate (PHB) has the potential to be used as an alternative anti-infective strategy for aquaculture rearing. In this research, the effects of (partially) replacing the feed of European sea bass juveniles with PHB were investigated. During a 6-week trial period, the PHB showed the ability to act as an energy source for the fish. This indicated that PHB was degraded and used during gastrointestinal passage. The gut pH decreased from 7.7 to 7.2 suggesting that the presence of PHB in the gut led to the increased production of (short-chain fatty) acids. The diets supplemented with 2% and 5% PHB (w/w) induced a gain of the initial fish weight with a factor 2.4 and 2.7, respectively, relative to a factor 2.2 in the normal feed treatment. Simultaneously, these treatments showed the highest bacterial range-weighted richness in the fish intestine. Based on molecular analysis, higher dietary PHB levels induced larger changes in the bacterial community composition. From our results, it seems that PHB can have a beneficial effect on fish growth performance and that the intestinal bacterial community structure may be closely related to this phenomenon. |
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Authors:
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Peter De Schryver; Amit Kumar Sinha; Prabesh Singh Kunwar; Kartik Baruah; Willy Verstraete; Nico Boon; Gudrun De Boeck; Peter Bossier |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't Date: 2010-01-22 |
Journal Detail:
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Title: Applied microbiology and biotechnology Volume: 86 ISSN: 1432-0614 ISO Abbreviation: Appl. Microbiol. Biotechnol. Publication Date: 2010 May |
Date Detail:
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Created Date: 2010-04-14 Completed Date: 2010-07-29 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 8406612 Medline TA: Appl Microbiol Biotechnol Country: Germany |
Other Details:
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Languages: eng Pagination: 1535-41 Citation Subset: IM |
Affiliation:
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Laboratory of Microbial Ecology and Technology (LabMET), Ghent University, Coupure Links 653, 9000, Ghent, Belgium. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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3-Hydroxybutyric Acid
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metabolism Animal Feed Animals Aquaculture / methods* Bass / growth & development*, microbiology Body Weight Hydrogen-Ion Concentration Hydroxybutyrates / pharmacology* Intestines / microbiology Polyesters / pharmacology* Survival Analysis |
| Chemical | |
Reg. No./Substance:
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0/Hydroxybutyrates; 0/Polyesters; 26063-00-3/poly-beta-hydroxybutyrate; 300-85-6/3-Hydroxybutyric Acid |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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