Effect of a Cashmere Breeding Programme on Fibre Length Traits

H. Redden, Dean Robson, S. M. Rhind

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Two cashmere goat breed lines were selected, over a 5-year period, for increased mean cashmere weight ( Value line; V) or reduced mean cashmere diameter ( Fine line; F) and were compared with a group bred randomly ( Control; C). The mean staple length of V animals increased from 42.2 to 52.0 mm ( P< 0.001) between Years 1 and 5 and by Year 5 it was longer than that of F (43.9; P< 0.001) and C animals (45.2; P< 0.05). Between Years 1 and 5, the mean maximum drawn length of the V and F cashmere increased, from 50.9 to 63.1 mm ( P< 0.001) and from 45.0 to 52.8 mm ( P< 0.001), respectively. The mean minimum length for the V line increased from 32.5 to 49.6 mm ( P< 0.001). This was attributable to an increase in cashmere length in both males ( P< 0.001) and females ( P< 0.001). The mean minimum length for the F line increased ( P< 0.001) primarily because of an increase in the mean minimum cashmere length of the females ( P< 0.05). It is concluded that although the selection program resulted in an increase in cashmere production in the V line and no reduction in the F line animals, the associated increase in length and/or the changes in the relative length of the cashmere and guard hairs were likely to result in a reduction in fleece quality and value, particularly in the V animals.

Original languageEnglish
Pages (from-to)781-787
Number of pages6
JournalAustralian Journal of Agricultural Research
Volume59
Issue number9
DOIs
Publication statusPublished - 2005

Keywords

  • cashmere
  • fibres
  • breeding
  • quality
  • goats
  • length
  • SCOTTISH CASHMERE
  • GOAT KIDS
  • FLEECE
  • DIAMETER

Cite this

Effect of a Cashmere Breeding Programme on Fibre Length Traits. / Redden, H.; Robson, Dean; Rhind, S. M.

In: Australian Journal of Agricultural Research, Vol. 59, No. 9, 2005, p. 781-787.

Research output: Contribution to journalArticle

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abstract = "Two cashmere goat breed lines were selected, over a 5-year period, for increased mean cashmere weight ( Value line; V) or reduced mean cashmere diameter ( Fine line; F) and were compared with a group bred randomly ( Control; C). The mean staple length of V animals increased from 42.2 to 52.0 mm ( P< 0.001) between Years 1 and 5 and by Year 5 it was longer than that of F (43.9; P< 0.001) and C animals (45.2; P< 0.05). Between Years 1 and 5, the mean maximum drawn length of the V and F cashmere increased, from 50.9 to 63.1 mm ( P< 0.001) and from 45.0 to 52.8 mm ( P< 0.001), respectively. The mean minimum length for the V line increased from 32.5 to 49.6 mm ( P< 0.001). This was attributable to an increase in cashmere length in both males ( P< 0.001) and females ( P< 0.001). The mean minimum length for the F line increased ( P< 0.001) primarily because of an increase in the mean minimum cashmere length of the females ( P< 0.05). It is concluded that although the selection program resulted in an increase in cashmere production in the V line and no reduction in the F line animals, the associated increase in length and/or the changes in the relative length of the cashmere and guard hairs were likely to result in a reduction in fleece quality and value, particularly in the V animals.",
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