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A note on the effect of changes in daylength on the seasonal wool growth cycle in Soay sheep

Published online by Cambridge University Press:  02 September 2010

M. L. Ryder  and
G. A. Lincoln
M. L. Ryder
Affiliation:
ARC Animal Breeding Research Organisation, Edinburgh, EH9 3JQ
G. A. Lincoln
Affiliation:
MRC Unit of Reproductive Biology, 2 Forrest Road, Edinburgh, EH1 2QW
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Summary

Seven Soay rams were subjected to a short daylength from the middle of August until the end of October, and this hastened the onset of winter follicle inactivity which normally begins at the end of September. A reversion to long days until the middle of January slowed down the process, and in six animals the usual spring moult was inhibited.

Type
Research Article
Information
Animal Production , Volume 23 , Issue 2 , October 1976 , pp. 257 - 260
Copyright
Copyright © British Society of Animal Science 1976

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References

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