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Coefficients of inbreeding and degree of relationship for the British Friesian herd

Published online by Cambridge University Press:  02 September 2010

J. C. Bowman ,
E. A. Butler  and
E. Tuncel
J. C. Bowman
Affiliation:
Department of Agriculture and Horticulture, University of Reading, Earley Gate, Reading RG6 2AT
E. A. Butler
Affiliation:
Department of Agriculture and Horticulture, University of Reading, Earley Gate, Reading RG6 2AT
E. Tuncel
Affiliation:
Department of Agriculture and Horticulture, University of Reading, Earley Gate, Reading RG6 2AT
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Abstract

The coefficients of inbreeding and the degree of relationship for British Friesian bulls used for artificial insemination by the Milk Marketing Board in sample years between 1955 and 1972 and for random samples of registered females from the same years have been calculated. The average coefficient of inbreeding was lower in bulls (0·5%) than in registered females (2·7%). The average degree of relationship was 0·7% for bulls and 2·6% for heifers.

Type
Research Article
Information
Animal Production , Volume 27 , Issue 3 , December 1978 , pp. 269 - 276
Copyright
Copyright © British Society of Animal Science 1978

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References

REFERENCES

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