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Behaviour of some external characteristics in Essex pigs

Published online by Cambridge University Press:  27 March 2009

T. M. Olbrycht
T. M. Olbrycht
Affiliation:
Royal (Dick) Veterinary College, Edinburgh, 9
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Extract

1. The colour pattern in the Essex breed shows continuous variation in width and in shape of the belt, in size and number of the distal white points, in pigmentation of the skin and in the occurrence of all-black colour.

2. The variation in ear shape extends from long, hanging ears to small, erect (prick) ears.

3. ‘Rose back’ was observed in a small percentage of pure-bred Essex pigs.

4. Observed results of crossing Wessex with Essex pigs, and the similarity in variation of colour of the two breeds, indicate that the factors upon which the colour depends are the same in Essex and in Wessex, and that there is no genetical difference in colour in these two breeds.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 34 , Issue 1 , January 1944 , pp. 16 - 21
Copyright
Copyright © Cambridge University Press 1944

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References

REFERENCES

Buchanan Smith, A. D., Robinson, O. J. & Bryant, D. M. (1936). Bibliogr. Genet. 12.Google Scholar
Dunn, L. C. (1942). Genetics, 27, 258–67.CrossRefGoogle Scholar
Fisher, R. A. (1930). The Genetical Theory of Natural Selection. Oxford: Clarendon Press.CrossRefGoogle Scholar
Mather, K. (1941). J. Genet. 41, 159–93.CrossRefGoogle Scholar
Mather, K. (1943). Nature, Lond., 151, no. 3820.Google Scholar
Olbrycht, T. M. (1941). Bull. Nat. Pig. Breed. Ass. no. 2.Google Scholar
Olbrycht, T. M. (1941 a). Ann. Eugen., Lond., 11, 80–8.CrossRefGoogle Scholar
Wigan, L. G. & Mather, K. (1942). Ann. Eugen., Lond., 11, 354–64.CrossRefGoogle Scholar