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Roles of dietary fibre and ingredient particle size in broiler nutrition

Published online by Cambridge University Press:  28 March 2018

S.K. KHERAVII ,
N.K. MORGAN ,
R.A. SWICK ,
M. CHOCT  and
S.-B. WU
S.K. KHERAVII
Affiliation:
Animal Science, School of Environmental and Rural Science, University of New England, Armidale, NSW 2351, Australia Animal Production, Faculty of Agriculture and Forestry, University of Duhok, 42003, Kurdistan region, Iraq
N.K. MORGAN
Affiliation:
Animal Science, School of Environmental and Rural Science, University of New England, Armidale, NSW 2351, Australia
R.A. SWICK
Affiliation:
Animal Science, School of Environmental and Rural Science, University of New England, Armidale, NSW 2351, Australia
M. CHOCT
Affiliation:
Animal Science, School of Environmental and Rural Science, University of New England, Armidale, NSW 2351, Australia
S.-B. WU*
Affiliation:
Animal Science, School of Environmental and Rural Science, University of New England, Armidale, NSW 2351, Australia
*
Corresponding author: shubiao.wu@une.edu.au
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Abstract

Increasing the structural components in the diet, namely through including coarse grain particles in diets and manipulating the dietary fibre composition, has been shown to improve gut health, feed utilisation and production efficiency. This is primarily because structural components physically stimulate activity in the fore gut. An example of this is dietary non-starch polysaccharides (NSP), namely insoluble NSP, which have been shown to instigate beneficial effects on gut health, litter quality and nutrient utilisation, by increasing crop and gizzard activity, stimulating digestive enzyme production and enhancing bacterial fermentation in the hind gut. However, there is a lack of consistency with regard to the direct effects of dietary fibre on chicken health and production. The aim of this review therefore is to explore the impact of feeding different sources of fibre and different size grain particles on gut health and microflora, nutrient utilisation, performance and litter quality in broilers.

Keywords

fibreparticle sizegizzardperformancedigestibilitygut microfloralitter
Type
Review
Information
World's Poultry Science Journal , Volume 74 , Issue 2 , June 2018 , pp. 301 - 316
Copyright
Copyright © World's Poultry Science Association 2018 

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