18—some Observations on the Objective Characteristics of Classed Wool Clips. Part Ii: A Theoretical Approach to Wool-Classing

Whiteley, K. J.; Wilkins, O. D.

doi:10.1080/00405007408630443

Cited by 5 publications

(3 citation statements)

References 5 publications

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“…Merino wool had the highest mean curvature and, along with rabbit fiber, was notably variable. For Merino wool, there is a well-known negative correlation between curvature and diameter at the staple level 18,19 that holds at the single fiber level (Figure 2) for the underhairs of each species examined (two-tailed Spearman, N = 20 and P < 0.05 in each case) with the exception of mohair fibers, for which there was no appreciable relationship (Figure 2d; Table 1).…”

Section: ■ Introductionmentioning

confidence: 88%

Interspecies Comparison of Morphology, Ultrastructure, and Proteome of Mammalian Keratin Fibers of Similar Diameter

Thomas

Harland

Clerens

et al. 2012

J. Agric. Food Chem.

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Sheep wool has traditionally been viewed as the representative mammalian keratin fiber for the purposes of describing morphology and protein composition. We have investigated narrow fibers from the under-hairs of a range of species both closely and distantly related to sheep, comparing structure and protein composition. Within this group, curvature was negatively correlated with diameter for all but mohair. The cortical cell types present in alpaca, rabbit, and mohair fibers differed structurally from wool, primarily in terms of their macrofibril architecture. Except for rabbit, each species' fibers contained three cell types, and except for mohair, cell types were distributed asymmetrically across the cortex. In mohair, the cell types were distributed annularly, and each cell type had regions in which intermediate filaments were packed into highly aligned hexagonal mosaics, much like the mesocortex in wool. Coupled with this, were differences in the protein profiles; the rabbit fiber contained extra keratins and keratin associated proteins, while only subtle differences were noted between mohair and Merino fibers. In both rabbit and mohair fibers, the relative abundance of keratin K85 was lower than that of Merino. These results suggest that there may be links between relative protein composition and fiber morphology, albeit complex ones.

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Section: ■ Introductionmentioning

confidence: 88%

Interspecies Comparison of Morphology, Ultrastructure, and Proteome of Mammalian Keratin Fibers of Similar Diameter

Thomas

Harland

Clerens

et al. 2012

J. Agric. Food Chem.

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“…The range of wools studied in this paper cover all those fineness classifications that are commonly encountered in wool commerce in Australia although the results should not necessarily be interpreted as being fully representative of the selling centre from which they were obtained. Further study of superfine wools is required because of the particular status of these types, the reduced range of variation observed in the relationship between quality number and fineness and their abnormal within-clip relationships (McKinnon & Whiteley, 1974;Whiteley & Wilkins, 1974;Whiteley & McKinnon, 1974).…”

Section: Discussionmentioning

confidence: 99%

“…It is important to realize that these data cover the complete range of wools likely to be encountered in Australia and the relationship among variables should not be confused with those calculated for a smaller range of wool types or with data relating to individual fleeces drawn from the same flock (McKinnon & Whiteley, 1974;Whiteley & Wilkins, 1974;Whiteley & McKinnon, 1974).…”

Section: Mean Valuesmentioning

confidence: 99%

The appraisal of fineness in greasy wool sale lots

Whiteley

Charlton

1975

J. Agric. Sci.

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Relationships among quality number, crimp frequency and. fibre diameter of sale lots are reported for a wide range of Australian wools, the quality number appraisals being those of the selling broker and the successful bidder at auction.Results show that sale lots classified as having the same quality number exhibit a 95 % confidence interval of + 2-5 /iia about the mean value. This variation is attributed first to the dependence of quality number on staple crimp frequency and secondly to the strength of the relationship between crimp frequency and fibre diameter.

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A model to estimate the economic value of using individual fleece fibre diameter measurements to class wool

Vizard

Williams

1993

Agricultural Systems

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18—some Observations on the Objective Characteristics of Classed Wool Clips. Part Ii: A Theoretical Approach to Wool-Classing

Cited by 5 publications

References 5 publications

Interspecies Comparison of Morphology, Ultrastructure, and Proteome of Mammalian Keratin Fibers of Similar Diameter

Interspecies Comparison of Morphology, Ultrastructure, and Proteome of Mammalian Keratin Fibers of Similar Diameter

The appraisal of fineness in greasy wool sale lots

A model to estimate the economic value of using individual fleece fibre diameter measurements to class wool

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