The effect of different xylanases on carbohydrate digestion and viscosity along the intestinal tract in broilers

Title
The effect of different xylanases on carbohydrate digestion and viscosity along the intestinal tract in broilers
Publication Date
1998
Author(s)
Choct, Mingan
( author )
OrcID: https://orcid.org/0000-0002-2242-8222
Email: mchoct@une.edu.au
UNE Id une-id:mchoct
Editor
Editor(s): RAE Pym, EF Annison, D Balnave, WL Bryden, DJ Farrell, DR Fraser, RJ Hughes, S Prowse, BL Sheldon
Type of document
Conference Publication
Language
en
Entity Type
Publication
Publisher
University of Sydney
Place of publication
Sydney, Australia
UNE publication id
une:17701
Abstract
The mode of action of two xylanase products on the digestion of non-starch polysaccharides (NSP) and digesta viscosity along the gut was examined in broilers fed two wheats with different metabolisable energy values. Significantly (P<0.01) higher viscosity values (mPa.s) were observed in the duodenum (3.68 vs 2.58), jejunum (5.14 vs 2.6) and ileum (18 vs 10.6) of birds fed the low-ME wheat compared with those fed the normal wheat. In the duodenum, both enzyme products lowered (P<0.05) the viscosity regardless of wheat type, but in the jejunum, a reduction in viscosity was observed only in the birds fed the low-ME wheat. Both enzymes caused an increase in the ileal viscosity. The relative level of soluble NSP in the ileum was significantly (P<0.01) elevated by both enzymes and this coincided with a decrease in the insoluble NSP level. The enzymes did not release substantial amounts of monosaccharides and oligosaccharides.
Link
link
Citation
Proceedings of the Australian Poultry Science Symposium, v.10, p. 111-115
ISSN
1034-6260
1034-3466
Start page
111
End page
115

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