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A study of fecundity in the domestic fowl: the behaviour of persistency in individual hens

Published online by Cambridge University Press:  27 March 2009

Alan W. Greenwood ,
Janet S. S. Blyth  and
Nancy Galpin
Alan W. Greenwood
Affiliation:
Institute of Animal Genetics, University of Edinburgh
Janet S. S. Blyth
Affiliation:
Institute of Animal Genetics, University of Edinburgh
Nancy Galpin
Affiliation:
Institute of Animal Genetics, University of Edinburgh
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Extract

1. Individual birds have a characteristic date for the termination of the egg laying cycle.

2. The date of cessation of production at the end of the pullet year is not a reliable indication of the bird's potentiality in this respect.

3. The longer the birds are retained the greater is the chance of distinguishing the true date.

4. Individual dates for the termination of the cycle occur at so many points throughout the total range (from July to December) that this must either indicate a multiple factor situation or that the genes involved show a considerable range of expression.

Information

Type
Research Article
Information
The Journal of Agricultural Science , Volume 30 , Issue 2 , April 1940 , pp. 202 - 209
Copyright
Copyright © Cambridge University Press 1940

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References

REFERENCES

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