Hostname: page-component-848d4c4894-pftt2 Total loading time: 0 Render date: 2024-04-30T21:45:18.728Z Has data issue: false hasContentIssue false
  • English
  • Français

Genetic factors influencing atrophic rhinitis in the pig

Published online by Cambridge University Press:  02 September 2010

B. W. Kennedy  and
J. E. Moxley
B. W. Kennedy
Affiliation:
Macdonald College of McGill University, Ste-Anne de Bellevue, Quebec H9X 1CO, Canada
J. E. Moxley
Affiliation:
Macdonald College of McGill University, Ste-Anne de Bellevue, Quebec H9X 1CO, Canada
Get access

Abstract

Data from 1447 pigs from 438 litters were used to estimate heritability, breeding and mating system differences and heterosis of atrophic rhinitis. Yorkshire, Landrace and Lacombe breeds and their crosses were represented. Rhinitis was measured by necropsic examination of the degree of degeneration of the nasal turbinates. Two traits were considered: rhinitis incidence, based on whether or not pigs showed any nasal turbinate degeneration; and rhinitis score, which ranged from zero to four, based on the percentage of nasal turbinate degeneration exhibited. Heritabilities of rhinitis incidence and score were 0·12±0·09 and 0·03±0·02, respectively. Mating system differences were significant but differences between crosses within mating system were not. Estimates of heterosis of two-breed, backcross and three-breed cross pigs over purebreds were respectively, 1·1, 3·4 and 22·1% for rhinitis incidence and 10·1, 13·2 and 28·5% for rhinitis score.

Type
Research Article
Information
Animal Production , Volume 30 , Issue 2 , April 1980 , pp. 277 - 283
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

Bäckström, L., Bremer, H., Dryendahl, I. and Olsson, H. 1976. [Atrophic rhinitis in pigs. A study on the effect of the disease on growth, its relationship with age of sows, and the genetic predisposition in a herd with a high incidence of rhinitis.] Svensk Vet. 28: 449–455.Google Scholar
Dando, P., Gruand, J. and Ollivier, L. 1973. [Radiographic and necropsic examinations of pig snouts: preliminary results.] Journées Rech. Porcine en France, pp. 25–31.Google Scholar
Dempster, E. R. and Lerner, I. M. 1950. Heritability of threshold characters. Genetics, Princeton 35: 212–236.CrossRefGoogle ScholarPubMed
Earl, F. L., Whitmore, G. E., Damon, R. A., Hetzer, H. O. and Tribble, H. R. Jr 1962. Effect of atrophic rhinitis on rate of gain in swine. J. Am. vet. med. Ass. 140: 443–447.Google ScholarPubMed
Fredeen, H. T. 1963. Genetic aspects of disease resistance. Can. vet. J. 4: 219–233.Google ScholarPubMed
Gwatkin, R. 1960. Rhinitis of swine. Can. Dep. Agric, Publ. 1085.Google Scholar
Henderson, C. R. 1953. Estimation of variance and covariance components. Biometrics 9: 226–252.CrossRefGoogle Scholar
Henderson, C. R., Kempthorne, O., Searle, S. R. and Von Krosigk, C. M. 1959. The estimation of environmental and genetic trends from records subject to culling. Biometrics 15: 192–217.CrossRefGoogle Scholar
Kristjansson, F. K. and Gwatkin, R. 1955. The effect of infectious atrophic rhinitis on weight for age in swine. Can. J. agric. Sci. 35: 139–142.Google Scholar
Lush, J. L., Lamoreux, W. F. and Hazel, L. N. 1948. The heritability of resistance to death in the fowl. Poult. Sci. 27: 375–388.CrossRefGoogle Scholar
Pond, W. G. and Maner, J. H. 1974. Swine Production in Temperate and Tropical Environments. Freeman, San Francisco.Google Scholar
Robertson, A. and Lerner, I. M. 1949. The heritability of all-or-none traits: viability of poultry. Genetics, Princeton 34: 395–411.CrossRefGoogle ScholarPubMed
Schönmuth, G., Seifert, H. and Nagel, E. 1970. [Experimental studies on the inheritance of infectious atrophic rhinitis using X-rays.] Arch. Tierz. 13: 345–360.Google Scholar
Searle, S. R. 1971. Linear Models. Wiley, New York.Google Scholar
Shuman, R. D. and Earl, F. L. 1956. Atrophic rhinitis. VII. A study of the economic effect in a swine herd. J. Am. vet. med. Ass. 129: 220–224.Google Scholar
Switzer, W. P. and Farrington, D. O. 1975. Infectious atrophic rhinitis. In Diseases of Swine (ed. Dunne, H. W. and Leman, A. D.). 4th ed., pp. 687–711. Iowa State University Press, Ames, la.Google Scholar
Young, G. A., Caldwell, J. D. and Underdahl, N. R. 1959. Relationship of atrophic rhinitis and virus pig pneumonia to growth rate in swine. J. Am. vet. med. Ass. 134 231–233.Google ScholarPubMed