The polysaccharide compositions of 20 wheat varieties from New South Wales and Western Australia were determined. Mean pentosan and â-glucan contents ranged from 5.7 1 to 8.18% and from 0.61 to 0.87% respectively, on a dry matter basis. Starch contents ranged from 61.5 to 68.9% and the wheat starches were between 21.1 and 31.8% amylose. The starch digestibility of the wheats was found to be independent of the levels or composition of the polysaccharides when assayed using 5-week-old broiler chickens.
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G. Annison (1990) studied this question.