Hostname: page-component-586b7cd67f-g8jcs Total loading time: 0 Render date: 2024-11-27T21:31:52.967Z Has data issue: false hasContentIssue false

The Fleece of Wiltshire × Wensleydale Sheep

Published online by Cambridge University Press:  02 September 2010

M. L. Ryder
Affiliation:
ARC Animal Breeding Research Organisation, West Mains Road, Edinburgh EH9 3JQ
Get access

Abstract

The coat of 16 Wiltshire × Wensleydale lambs was investigated and all were woolly, with no halo hairs on the back. The bulk of the coat consisted of curly-tip fibres, and most lambs had Valley (8) or Plain (6) fibre-type arrays, only two having Ravine arrays.

There was little difference in diameter between the primary and secondary fibres in the skin, and some evidence of ‘checking’ in the central primaries. The secondary/primary follicle ratio of 4·26 compared with a mid-parent value of 4·5. There was less latticed medullation in the crossbreds than in the Wiltshire.

The adult fleeces were visually similar to those of the Wensleydale and were intermediate in weight and staple length between the parent breeds. These findings could have practical application in the improvement of ‘hair’ sheep, in that a first cross with the Wensleydale would have a fleece of medium wool lacking hair or kemp.

Type
Research Article
Copyright
Copyright © British Society of Animal Science 1978

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

Burns, M. 1966. Merino birthcoat fibre types and their follicular origin. J. agric. Sci., Camb. 66: 155173.CrossRefGoogle Scholar
Burns, M. 1967a. The Katsina Wool Project. I. The coat and skin histology of some northern Nigerian Hair sheep and their Merino crosses. Trop. Agric, Trin. 44: 173192.Google Scholar
Burns, M. 1967b. The Katsina Wool Project. II. Coat and skin data from ¾Merino and Wensleydale crosses. Trop. Agric, Trin. 44: 253274.Google Scholar
Dry, F. W. 1965. Lamb fibre types. In The Biology of Skin and Hair Growth (ed. Lyne, A. G. and Short, B. F.), pp. 89104. Angus and Robertson, Sydney.Google Scholar
Dry, F. W. 1975. The Architecture of Lamb's Coats. Massey University, New Zealand.Google Scholar
Ryder, M. L. 1969. The development and structure of, and seasonal change in, the coat of some Wiltshire sheep. Anim. Prod. 11: 467477.Google Scholar
Ryder, M. L. 1973. Variation in the birthcoats of Wiltshire lambs, and its relation to casting of the adult fleece. J. agric. Sci., Camb. 80: 7174.CrossRefGoogle Scholar
Ryder, M. L. and Stephenson, S. K. 1968. Wool Growth. Academic Press, London.Google Scholar
Slee, J. 1959. Fleece shedding, staple length and fleece weight in experimental Wiltshire Horn-Scottish Blackface sheep crosses. J. agric. Sci., Camb. 53: 209223.CrossRefGoogle Scholar