Article (Scientific journals)
The effects of xylo-oligosaccharides on performance and microbiota in broiler chickens.
De Maesschalck, C.; Eeckhaut, V.; Maertens, L. et al.
2015In Applied and Environmental Microbiology
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Keywords :
xylo-oligosaccharides; broiler; Clostridium
Abstract :
[en] In broiler chickens, feed additives, including prebiotics, are widely used to improve gut health and to stimulate performance. Xylo-oligosaccharides (XOS) are hydrolytic degradation products of arabinoxylans that can be fermented by the gut microbiota. In the current study it was aimed to analyze the prebiotic properties of XOS when added to the broiler diet. Administration of XOS to chickens, on top of a wheat/rye-based diet, significantly improved the feed conversion ratio. XOS significantly increased villus length in the ileum. It also significantly increased numbers of lactobacilli in the colon and Clostridium cluster XIVa in the caeca. Moreover, the number of gene copies encoding the key bacterial enzyme for butyrate production, butyryl-CoA:acetate CoA-transferase, was significantly increased in the caeca of chickens administered XOS. In this group of chickens, at species level, Lactobacillus crispatus and Anaerostipes butyraticus were significantly increased in abundance in the colon and caecum, respectively. In vitro fermentation of XOS revealed cross-feeding between L. crispatus and A. butyraticus. Lactate, produced by L. crispatus during XOS fermentation, was utilized by the butyrate-producing Anaerostipes species. These data show the beneficial effects of XOS on broiler performance when added to the feed, which potentially can be explained by stimulation of butyrate-producing bacteria through cross-feeding of lactate and subsequent effects of butyrate on gastrointestinal function.
Disciplines :
Microbiology
Author, co-author :
De Maesschalck, C.;  Universiteit Gent - Ugent
Eeckhaut, V.;  Universiteit Gent - Ugent
Maertens, L.;  ILVO
De Lange, L.;  Lelystad
Marchal, L.;  ForFarmers
Nezer, C.;  Quality Partner
De Baere, S.;  Universiteit Gent - Ugent
Croubels, S.;  Universiteit Gent - Ugent
Daube, Georges  ;  Université de Liège > Département de sciences des denrées alimentaires (DDA) > Microbiologie des denrées alimentaires
Dewulf, J.;  Universiteit Gent - Ugent
Haesebrouck, F.;  Universiteit Gent - Ugent
Ducatelle, R.;  Universiteit Gent - Ugent
Taminiau, Bernard  ;  Université de Liège > Département de sciences des denrées alimentaires (DDA) > Microbiologie des denrées alimentaires
Van Immerseel, F.;  Universiteit Gent - Ugent
More authors (4 more) Less
Language :
English
Title :
The effects of xylo-oligosaccharides on performance and microbiota in broiler chickens.
Publication date :
2015
Journal title :
Applied and Environmental Microbiology
ISSN :
0099-2240
eISSN :
1098-5336
Publisher :
American Society for Microbiology, Washington, United States - District of Columbia
Peer reviewed :
Peer Reviewed verified by ORBi
Commentary :
Copyright (c) 2015, American Society for Microbiology. All Rights Reserved.
Available on ORBi :
since 19 July 2015

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