Hostname: page-component-7bb8b95d7b-l4ctd Total loading time: 0 Render date: 2024-09-12T13:18:24.981Z Has data issue: false hasContentIssue false
  • English
  • Français

A note on the estimation of economic values for selection indices

Published online by Cambridge University Press:  02 September 2010

R. Thompson
R. Thompson
Affiliation:
ARC Unit of Statistics, University of Edinburgh, Edinburgh EH9 3JZ
Get access

Abstract

A procedure has recently been developed for estimating economic values which employs a profit function implying that animals with mean values for variates in the profit function give the most profit. However, the proposed index selects extreme animals, a paradox which is explained by showing that the index is appropriate for only part of the profit function. More appropriate selection indices are developed and illustrated graphically.

Type
Research Article
Information
Animal Production , Volume 31 , Issue 1 , August 1980 , pp. 115 - 117
Copyright
Copyright © British Society of Animal Science 1980

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.)

References

REFERENCES

Hazel, L. N. 1943. The genetic basis for construction of selection indices. Genetics, Princeton 28: 476–490.CrossRefGoogle Scholar
Melton, B. E., Heady, E. O. and Willham, R. L. 1979. Estimation of economic values for selection indices. Anim. Prod. 28: 279–286.Google Scholar
Moav, R. and Hill, W. G. 1966. Specialised sire and dam lines. IV. Selection within lines. Anim. Prod. 8: 375–390.Google Scholar
Sanders, J. D. 1977. Application of a beef cattle production model to the evaluation of genetic selection criteria. Ph.D. Thesis, Dep. Anim. Sci., Texas A. and M. Univ.Google Scholar
Wilton, J. W., Evans, D. A. and Van Vleck, L. D. 1968. Selection indices for quadratic models of total merit. Biometrics 24: 937–949.Google Scholar