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Experimental design for grazing trials

Published online by Cambridge University Press:  27 March 2009

D. Conniffe ,
D. Browne  and
M. J. Walshe
D. Conniffe
Affiliation:
An Foras Taluntais, Statistics Department, 19 Sandymount Avenue, Dublin 4
D. Browne
Affiliation:
An Foras Taluntais, Moorepark, Fermoy, Go. Cork
M. J. Walshe
Affiliation:
An Foras Taluntais, Moorepark, Fermoy, Go. Cork
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Summary

Animal production in grazing experiments depends both on treatment and on stocking rate. Production at optimum stocking rate is the only valid measure of treatment effect and treatment comparisons should be based on this criterion. Since optimum stocking rates are unknown these comparisons cannot be made directly, instead they must be inferred from the results obtained with the stocking rates actually used. This requires that some form of production stocking rate relationship be postulated. This paper suggests a form for this relationship and considers its implications on experimental design and particularly on the number of stocking rates per treatment.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 74 , Issue 2 , April 1970 , pp. 339 - 342
Copyright
Copyright © Cambridge University Press 1970

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References

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