Author:
Tony Schlink

Date of Publication:
2009

Publication:
The Australian Wool Education Trust

Excerpt:
On completion of this topic you should be able to:
• demonstrate an understanding of fibre diameter and the economic importance of fibre diameter
• explain and calculate the difference between the standard deviation of diameter and the coefficient of variation of diameter
• define the relationship between mean diameter, diameter variation and “coarse edge” or “prickle”
• measure staple strength and describe its economic importance
• explain the sources of variation in staple strength within a mob of sheep
• describe localised vs generalised fibre weakness as determinants of staple strength
• define and quantify the relationship between staple strength and each of minimum diameter, along-staple diameter variation, rate of change in diameter, fibre length variation and intrinsic fibre strength
• relate raw wool style including the main component traits to economic importance
• explain the influence of fibre diameter and fibre crimp on wool handle
• describe fibre curvature and the value of curvature

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