Hostname: page-component-7b7567c8c-wxvwp Total loading time: 0 Render date: 2026-11-14T02:35:44.672Z Has data issue: false hasContentIssue false
  • English
  • Français

Experimental errors in laying experiments

Published online by Cambridge University Press:  27 March 2009

R. W. Hale
R. W. Hale
Affiliation:
Queen's University of Belfast and Ministry of Agriculture, Northern Ireland
Get accessRights & Permissions [Opens in a new window]

Extract

To amplify published information on the size of errors in annual egg records, results are presented for fourteen laying experiments and one flock under uniform management at the Agricultural Research Institute of Northern Ireland, Hillsborough. It is concluded that in laying experiments on a semi-intensive plant the egg records are seldom affected to any serious extent by differences between pens that are treated similarly. Non-random allocation of pullets to the laying pens does not appear to have seriously affected the results on which this conclusion is based. It is pointed out that the distribution of egg records from a high producing flock is likely to be extremely skew and leptokurtic.

Information

Type
Research Article
Information
The Journal of Agricultural Science , Volume 42 , Issue 4 , October 1952, pp. 347 - 352
Copyright
Copyright © Cambridge University Press 1952

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

Article purchase

Temporarily unavailable

References

REFERENCES

Bolton, W. & Hale, R. W. (1945). J. Agric. Sci. 35, 158.CrossRefGoogle Scholar
Busteed, J. (1926). A Statistical Analysis of Irish Egg Production, Prices and Trade, 62 pp. Cork University Press.Google Scholar
Dudley, P. J. (1932). Harper Adams Util. Poult. J. 18, 260.Google Scholar
Dudley, F. J. & Read, D. R. (1949). Harper Adams Util. Poult. J. 34, 65.Google Scholar
Dunn, L. C. (1924, etc.). A statistical study of egg production in four breeds of the domestic fowl. Bull. Storrs Agric. Exp. Sta. C. nos. 117, 118, 122 and 147.Google Scholar
Fisher, R. A. (1934). Statistical Methods for Research Workers, 5th ed. section 14.Google Scholar
Hale, R. W. & Bolton, W. (1948). J. Agric. Sci. 38, 437.CrossRefGoogle Scholar
Prentice, J. H. (1933). J. Minist. Agric. N. Ire. 4, 116.Google Scholar
Prentice, J. H. (1937). J. Minist. Agric. N. Ire. 5, 149.Google Scholar
Snedecor, G. W. (1946). Statistical Methods, section 10.4. Iowa State College Press.Google ScholarPubMed
Weatherburn, C. E. (1949). A First Course in Mathematical Statistics, 2nd ed.Cambridge University Press.Google Scholar
Yates, F. (1933). J. Agric. Sci. 23, 108.CrossRefGoogle Scholar