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Design and analysis of mixed grazing experiments

Published online by Cambridge University Press:  02 September 2010

J. Connolly  and
T. Nolan
J. Connolly
Affiliation:
An Foras Talúntais, 19 Sandymount Avenue, Dublin 4, Ireland
T. Nolan
Affiliation:
An Foras Talúntais, Creagh, Ballinrobe, Co. Mayo, Ireland
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Summary

New methods of design and analysis for mixed grazing experiments are proposed and compared with previously reported designs. In general, with previous designs the effects of mixed grazing per se were confounded with other factors. The concepts of equality of grazing pressure and of livestock equivalents are examined and criticized when used as starting points for mixed grazing experiments. Two year's results of a mixed grazing experiment with cattle and sheep are analysed and provide evidence that mixed grazing is beneficial to both species in terms of production per animal. A simple economic analysis shows how the price ratio between the value per unit weight gain of the two species can be used to decide on the area of financial benefit from mixed- as opposed to single-species enterprises.

Type
Research Article
Information
Animal Production , Volume 23 , Issue 1 , August 1976 , pp. 63 - 71
Copyright
Copyright © British Society of Animal Science 1976

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References

REFERENCES

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