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The pre-natal development of follicle population in the Romney lamb

Published online by Cambridge University Press:  27 March 2009

M. L. Ryder
M. L. Ryder
Affiliation:
Wool Industries Research Association, Torridon, Headingley, Leeds, 6
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Extract

Previous studies on the development of follicle population in relation to the growth of the fleece have, except for the Merino, been mostly post-natal. The pre-natal study of follicle development in some British sheep by Wildman (1932) was mainly qualitative, as also was the work of Carter (1943) in the Merino. The latter study was, however, followed by some numerical work on the same breed (Carter & Hardy, 1947). Figures were given for the follicle density per unit area and the ratio of the number of secondary follicles to the number of primaries at different ages. The present study therefore helps to fill a gap in our knowledge by considering numerically the pre-natal stages of development in the English Romney, a breed which is important in the northern hemisphere and which might be considered to be comparable with the Romney of the southern hemisphere.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 47 , Issue 1 , February 1956 , pp. 6 - 11
Copyright
Copyright © Cambridge University Press 1956

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References

REFERENCES

Burns, M. (1949). J. Agric. Sci. 39, 64.CrossRefGoogle Scholar
Burns, M. (1953). J. Agric. Sci. 43, 422.CrossRefGoogle Scholar
Carter, H. B. (1943). Bull. Coun. Sci. Industr. Res., Aust., no. 164.Google Scholar
Carter, H. B. & Hardy, M. (1947). Bull. Coun. Sci. Industr. Res., Aust., no. 215.Google Scholar
Galpin, N. (1935). J. Agric. Sci. 25, 344.CrossRefGoogle Scholar
Peart, J. N. & Ryder, M. L. (1954). J. Text. Inst. 45, T821.CrossRefGoogle Scholar
Ross, J. M. (1954). Aust. J. Agric. Res. 5, 484.CrossRefGoogle Scholar
Ryder, M. L. (1955 a). J. Agric. Sci. 45, 311.CrossRefGoogle Scholar
Ryder, M. L. (1955 b). J. Agric. Sci. In the press.Google Scholar
Ryder, M. L. (1955 c). J. Text. Inst. 46, T 565.CrossRefGoogle Scholar
Wildman, A. B. (1932). Proc. Zool. Soc. Lond. pt. 2, p. 259.Google Scholar
Wildman, A. B. (1954). The Microscopy of Animal Textile Fibres. Leeds: Wool Industries Research Association.Google Scholar