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A complex pig-feeding experiment

Published online by Cambridge University Press:  27 March 2009

F. Yates
F. Yates
Affiliation:
(Chief Statistician, Rothamsted Experimental Station, Harpenden, Herts.)
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Summary

1. The conditions which must be fulfilled in the design of an animal husbandry experiment if the results are to be statistically valid are summarised, together with possible methods of improving the efficiency by suitable design.

2. The results of a pig-feeding experiment conducted at Rothamsted are discussed. The experiment showed that green food was essential to young pigs under the conditions of the experiment, that pigs fed on a wet mash grew at a faster rate than pigs fed on dry meal, the difference being due to the greater quantity of food consumed by the former, and that the effects of numbers in a pen (giving equal floor space per pig) were negligible in spite of the greater possibilities of exercise in the larger pens.

Information

Type
Research Article
Information
The Journal of Agricultural Science , Volume 24 , Issue 4 , October 1934 , pp. 511 - 531
Copyright
Copyright © Cambridge University Press 1934

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References

REFERENCES

(1)Crampton, E. W. and Hopkins, J. W.The use of the method of partial regression in the analysis of comparative feeding trial data. Part I. J. Nutrition (1934), 8, 113.CrossRefGoogle Scholar
(2)Dunlop, G.Methods of experimentation in animal nutrition. J. Agric. Sci. (1933), 23, 580.CrossRefGoogle Scholar
(3)Fisher, R. A.Statistical Methods for Research Workers. 5th edition. (In pross.)Google Scholar
(4)Yates, F.The analysis of replicated experiments when the field results are incomplete. Emp. J. Exp. Agric. (1933), 1, 129.Google Scholar