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A note on environmental factors affecting beef cattle performance tests

Published online by Cambridge University Press:  02 September 2010

E. Collins-Lusweti  and
M. K. Curran
E. Collins-Lusweti
Affiliation:
Wye College, University of London, Wye, Ashford Kent TN25 5AH
M. K. Curran
Affiliation:
Wye College, University of London, Wye, Ashford Kent TN25 5AH
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Abstract

Field data from four breeds (Charolais, Hereford, South Devon and Welsh Black) comprising a total of 145, 68, 262 and 197 records respectively and obtained from 30, 24, 38 and 25 herds were used. Station data from two breeds (Charolais and Hereford) comprising 268 and 687 records respectively, from cattle originating from 27 and 44 herds respectively were also used. The data were analysed to identify environmental factors which significantly affected bull performance traits. In performance traits, herd of origin, in field and station data, accounted on average for 0·50 and 0·18 respectively of the total variance. Year, season and dam's age accounted for 0·02, 0·03 and 0·02 respectively of the total variance, the last being higher in pre-weaning than in post-weaning traits.

Type
Research Article
Information
Animal Production , Volume 41 , Issue 1 , August 1985 , pp. 131 - 134
Copyright
Copyright © British Society of Animal Science 1985

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References

REFERENCES

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