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Journal of the Department of Agriculture, Western Australia, Series 4

Article Title

Wool staple strength

Authors

I G. Ralph

Keywords

Wool, Staple, Sheep feeding

First Page Number

99

Last Page Number

102

Abstract

The staple strength of western Australia's wool has come under scruitiny since additional wool measurements to those of yield, fibre diameter and vegetable matter began throughout the Australian 985-86 wool selling season.

In 1980, the Sale by Additional Measurement Trial conducted on the September-October wool sales at Fremantle showed a range in staple breaking forcesfrom 10 to 70 Newtons per kilotex, with an average breaking force of between 30 and 35 N/ktex, A third of the lots offered for sale had a staple breaking force of less than 26 N/ktex, a value which, according to the Australian Wool Testing Authority, marks the level of strenght below which wool buyers in the past began imposing a price discount for poor staple strength.

Based on the 1986-87 price discounts which are included in the Australian Wool Corporation Minimum Recerve Price Schedule, this third of the Western Australian wool clip could have incurred a price penalty of 24c/kg clean or more. The normal annual loss of revenue to the State's wool producers incurred by low wool staple strength is likely to be at least $2 million

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