Hostname: page-component-586b7cd67f-t7fkt Total loading time: 0 Render date: 2024-11-27T21:49:58.368Z Has data issue: false hasContentIssue false

An experiment on the selection of bacon pigs by high and low carcass densities

Published online by Cambridge University Press:  02 September 2010

R. W. Hale
Affiliation:
Ministry of Agriculture, Northern Ireland and Queen's University of Belfast‡
Get access

Summary

Selection based on average carcass densities of sibs was effective in breeding for leanness and for fatness in Large White pigs. Four herds were established for the five-year experiment, in which 615 pigs were slaughtered at bacon weights. Responses were obtained with both feeding to appetite and restricted feeding, but it was not possible to decide which was the preferable method.

Type
Research Article
Copyright
Copyright © British Society of Animal Science 1970

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

Falconer, D. S. 1960a. Selection of mice for growth on high and low places of nutrition. Genet. Res. 1: 91113.Google Scholar
Falconer, D. S. 1960b. Introduction to Quantitative Genetics. Oliver and Boyd, Edinburgh.Google Scholar
Falconer, D. S. and Latyszewski, M. 1952. The environment in relation to selection for size in mice. J. Genet. 51: 6780.Google Scholar
Fowler, S. H. and Ensminger, M. E. 1961. Relationship of plane of nutrition to the improvement of swine for meat production through selection. Tech. Bull. Wash, agric. Exp. Stn, No. 34.Google Scholar
Gray, R. C., Tribble, L. F., Day, B. N. and Lasley, J. F. 1968. Results of five generations of selection for low backfat thickness in swine. J. Anim. Sci. 27: 331335.Google Scholar
Hetzer, H. O. and Harvey, W. R. 1967. Selection for high and low fatness in swine. J. Anim. Sci. 26: 12441251.Google Scholar
Holme, D. W., Coey, W. E. and Robinson, K. L. 1963. The prediction of pig carcass composition from measurements of carcass density. J. agric. Sci., Camb. 61: 918.CrossRefGoogle Scholar
Smith, C., King, J. W. B. and Gilbert, N. 1962. Genetic parameters of British Large White bacon pigs. Anim. Prod. 4: 128143.Google Scholar
Smith, C. and Ross, G. J. S. 1965. Genetic parameters of British Landrace bacon pigs. Anim. Prod. 7:291301.Google Scholar
Van Vleck, L. D. 1968. Selection bias in estimation of the genetic correlation. Biometrics 24: 951962.Google Scholar