Anti-nutritive activity of wheat pentosans in broiler diets

Author(s)
Choct, Mingan
Annison, Geoffrey
Publication Date
1990
Abstract
1. To assess their possible anti-nutritive activity wheat pentosans were isolated from a milling by-product and added at graded levels to a sorghum-based broiler chicken diet. 2. A water-insoluble pentosan preparation (WIP, 720 g arabinoxy-lan/kg) caused a depression of apparent metabolisable energy (AME) of 1.63 MJ/kg DM at the highest level of inclusion (41.9 g/kg). Broilers maintained on this diet showed significant growth depression and a decrease in feed conversion efficiency. 3. A water-soluble pentosan preparation (WSP, 520 g arabinoxy-lan/kg) showed less anti‐nutritive activity. 4. In a second experiment the AME of rice (pearled), maize, sorghum, wheat, triticale, barley and rye was determined. The AME values obtained were highly correlated (r= - 0.98, P<0.001) with the summed levels of pentosans and β‐glucans found in the cereals. 5. It was concluded that the pentosans of wheat possess anti-nutritive activity when present in broiler diets and that similar polysaccharides may influence the nutritive value of other cereals.
Citation
British Poultry Science, 31(4), p. 811-821
ISSN
1466-1799
0007-1668
Link
Language
en
Publisher
Taylor & Francis
Title
Anti-nutritive activity of wheat pentosans in broiler diets
Type of document
Journal Article
Entity Type
Publication

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