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 language | English |
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Pages (from-to) | 781-787 |
Number of pages | 6 |
Journal | Australian Journal of Agricultural Research |
Volume | 59 |
Issue number | 9 |
DOIs | |
Publication status | Published - 2005 |
Keywords
- cashmere
- fibres
- breeding
- quality
- goats
- length
- SCOTTISH CASHMERE
- GOAT KIDS
- FLEECE
- DIAMETER