Hostname: page-component-848d4c4894-v5vhk Total loading time: 0 Render date: 2024-06-23T08:44:49.946Z Has data issue: false hasContentIssue false
  • English
  • Français

Skin follicle development in Cheviot × Dorset Horn cross foetuses

Published online by Cambridge University Press:  27 March 2009

Marjorie B. Derbyshire
Marjorie B. Derbyshire
Affiliation:
A.D.R.A., Moredun Institute, 408 Gilmerton Road, Edinburgh, EH17 7JH
Get access Rights & Permissions [Opens in a new window]

Summary

Skin samples were used to evaluate the developing skin follicle population of Cheviot × Dorset Horn cross foetuses. The follicle population was studied from the first appearance of skin follicles (55 days' gestation) to the end of gestation. The pattern of development of primary and secondary follicles is described, and compared with the data available for other breeds. The occurrence of secondary follicle branching, previously confirmed only in the Merino, is described, and the ‘prenatal check’, an important feature of follicle development which had not previously been investigated in prenatal studies, is briefly discussed.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 84 , Issue 3 , June 1975 , pp. 401 - 406
Copyright
Copyright © Cambridge University Press 1975

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

Auber, L. (1952). The anatomy of follicles producing wool-fibres, with special reference to keratinisation. Transactions of the Royal Society of Edinburgh 62, 191–254.CrossRefGoogle Scholar
Auber, L. & Ryder, M. L. (1956). Anomalies in the structure and development of wool fibres. Proceedings of the 1st International Wool Research Conference, Australia. Commonwealth Scientific Industrial Research Organisation, Australia. F. 36–63.Google Scholar
Burns, M. (1949). Studies on follicle population in relation to fleece changes in lambs of the English Leicester and Romney breeds. Journal of Agricultural Science, Cambridge 39, 64–79.Google Scholar
Burns, M. (1953). Observations on the follicle population of Blackface sheep. Journal of Agricultural Science, Cambridge 43, 422–31.Google Scholar
Burns, M. (1954). Observations on the development of the fleece and follicle population in Suffolk sheep. Journal of Agricultural Science, Cambridge 44, 86–99.CrossRefGoogle Scholar
Burns, M. (1966). Merino birthcoat fibre types and their follicular origin. Journal of Agricultural Science, Cambridge 66, 155–73.CrossRefGoogle Scholar
Carter, H. B. (1955). The hair follicle group in sheep. Animal Breeding Abstracts 23, 101–16.Google Scholar
Carter, H. B. & Hardy, M. L. (1947). Studies in the biology of the skin and fleece of sheep. 4. The hair follicle group and its topographical variations in the skin of the Merino foetus. Bulletin of the Council for Scientific and Industrial Research, Melbourne, No. 215.Google Scholar
Dry, F. W. (1933). The prenatal check in the birthcoat of the New Zealand Romney lamb. Journal of the Textile Institute 24, T161–166.Google Scholar
Hardy, M. H. & Lyne, A. G. (1956). The prenatal development of wool follicles in Merino sheep. Australian Journal of Biological Sciences 9, 423–41.Google Scholar
Orwin, D. F. G. (1961). Bundles of wool follicles in adult Romney ewes. Nature, London 190, 1026–7.CrossRefGoogle Scholar
Ruttle, J. L. & Sorensen, A. M. Jr. (1965). Prenatal development of wool follicles in Rambouillet sheep. Journal of Animal Science 24, 69–75.Google Scholar
Ryder, M. L. (1956). The prenatal development of follicle population in the Romney lamb. Journal of Agricultural Science, Cambridge 47, 6–11.Google Scholar
Ryder, M. L. (1957). Survey of the follicle population in a range of British breeds of sheep. Journal of Agricultural Science, Cambridge 49, 275–82.Google Scholar
Ryder, M. L. (1959). Some unusual outgrowths from secondary follicles in Soay sheep. Nature, London 183, 1831–2.Google Scholar
Ryder, M. L. & Stephenson, S. K. (1968). Wool Growth. London: Academic Press.Google Scholar
Schinckel, P. G. (1955). The post natal development of the skin follicle population in a strain of Merino sheep. Australian Journal of Agricultural Research 6, 68–76.Google Scholar
Short, B. F. (1955). Development of the secondary follicle population in sheep. Australian Journal of Agricultural Research 6, 62–7.Google Scholar
Stephenson, S. K. (1957). Wool follicle development in the New Zealand Romney and N-type sheep. I. The relationships of development to age in the New Zealand Romney and N-type sheep foetuses, and a comparison with results obtained from the Merino. Australian Journal of Agricultural Research 8, 371–84.Google Scholar
Stephenson, S. K. (1958). Wool follicle development in the New Zealand Romney and N-type sheep. II. Follicle population density during foetal development. Australian Journal of Agricultural Research 9, 138–60.Google Scholar
Stephenson, S. K. (1959 a). Wool follicle development in the New Zealand Romney and N-type sheep. III. The diameters of follicles and fibres. Australian Journal of Agricultural Research 10, 108–20.Google Scholar
Stephenson, S. K. (1959 b). Wool follicle development in the New Zealand Romney and N-type sheep. IV. Prenatal growth and changes in body proportions. Australian Journal of Agricultural Research 10, 433–52.Google Scholar
Stephenson, S. K. (1959 c). Wool follicle development in the New Zealand Romney and N-type sheep. V. The prenatal relationship between growth, skin expansion and primary follicle number. Australian Journal of Agricultural Research 10, 453–70.Google Scholar