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A more precise statistical analysis for certain grazing trials and other large scale animal experiments

Published online by Cambridge University Press:  02 September 2010

D. Conniffe
D. Conniffe
Affiliation:
Economics and Rural Welfare Centre, An Foras Talúntais, Dublin 4, Ireland
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Summary

In some grazing experiments stocking rates are adjusted during the experiment. For these and other experiments in which the initial number of animals per treatment is subsequently reduced a more powerful statistical analysis than the normal analysis of variance may be possible. The methodology of the analysis is presented in this paper and applied to an example.

Type
Research Article
Information
Animal Production , Volume 24 , Issue 1 , February 1977 , pp. 103 - 107
Copyright
Copyright © British Society of Animal Science 1977

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References

REFERENCES

Browne, D. 1970. Stocking rates with high nitrogen levels on old pasture. An Foras Taliintais, Soils Division, Res. Rep., pp. 60–61.Google Scholar
Conniffe, D. 1975. Double sampling with regression—extension to the case of unequal regression coefficients. Statistician 24: 259–266.Google Scholar
Conniffe, D. 1976a. Production-stocking rate relationships and experimentation. Ir. J. agric. Econ. rur. Sociol. 6: 1–7.Google Scholar
Conniffe, D. 1976b. A comparison of between and within herd variance in grazing experiments. Ir. J. agric. Res. 15: 39–46.Google Scholar
Conniffe, D. and Moran, M. A. 1972. Double sampling with regression in comparative studies of carcass composition. Biometrics, 28: 1011–1023.CrossRefGoogle Scholar
Cokway, A. 1968. Grazing management in relation to beef production. IV. Effect of seasonal variation in the stocking rate of beef cattle on animal production and on sward composition. Ir. J. agric. Res. 7: 93–104.Google Scholar
Conway, A. 1970. Beef cattle stocking rate experiment. An Foras Taliintais, Animal Husbandry and Dairying Division, Res. Rep., p. 8.Google Scholar
Kemp, C. D. 1960. The need for a dynamic approach to grassland experimentation. Proc. 8th int. Grassld Congr., Reading, pp. 728–731.Google Scholar
Morley, F. H. W. and Spedding, C. R. W. 1968, Agricultural systems and grazing experiments. Herb. Abstr. 38: 279–287.Google Scholar
Morrison, D. F. 1971. Expectations and variances of maximum likelihood estimates of the multivariate normal distribution with missing data. J. Am. statist. Ass. 66: 602–604.CrossRefGoogle Scholar