Estimation of the genetic correlations between twisted legs and growth or conformation traits in broiler chickens

Journal of Animal Breeding and Genetics

Volumn 114, Issue 4, 1997, Pages 239-259

  Le Bihan Duval, E ^a   Beaumont, C ^a   Colleau, J J ^b  

^a STATION DE RECHERCHES AVICOLES   (France)

^b CEMAGREF   (France)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 18144383901     PISSN: 09312668     EISSN: None     Source Type: Journal    
DOI: 10.1111/j.1439-0388.1997.tb00510.x     Document Type: Article

References (20)

1. ABOURACHID, A., 1993: Mechanics of standing in birds: functional explanation of lameness problems in giant turkeys. Brit. Poult. Sci. 34: 887-898.
2. CHAMBERS, J. R., 1990: Quantitative genetics and selection. Genetics of growth and meat production in chickens. In: Poultry Breeding and Genetics. R. D. CRAWFORD (ed), Elsevier, Amsterdam, pp. 599-643.
3. FOULLEY, J. L.; GIANOLA, D.; THOMPSON, R., 1983: Prediction of genetic merit from data on binary and quantitative variates with an application to calving difficulty, birth weight and pelvic opening. Gen. Sel. Evol. 15:401-424.
4. FOULLEY, J. L.; GIANOLA, D., 1986: Sire evaluation for multiple binary responses when information is missing on some traits. J. Dair. Sci. 69: 2681-2695.
5. FOULLEY, J. L.; GIANOLA, D.; IM, S. 1987: Genetic evaluation of traits distributed as Poisson-binomial with reference to reproductive characters. Theor. Appl. Genet. 73: 870-877.
6. HARTMANN, W.; FLOCK, D. K., 1979: Line and family effects on the incidence of 'twisted legs' in meat chickens. In: Proceedings of the British Poultry Breeders Roundtable, 20-22 November 1979, Glasgow, pp. 1-8.
7. HENDERSON, C. R., 1973: Sire evaluation and genetic trends. Proceedings of the animal breeding and genetic symposium in honour of Dr J. L. Lush. Am. Soc. Anim. Sci., Am. Dairy Sci. Ass. and Poult. Sci. Ass., Champaign (USA).
8. HENDERSON, C. R., 1975: Inverse of a matrix of relationships due to sires and maternal grandsires. J. Dairy Sci. 58: 1917-1921.
9. JANSS, L.; FOULLEY, J. L., 1993: Bivariate analysis for one continuous and one threshold dichotomous trait with unequal design matrices and an application to birth weight and calving difficulty. Livest. Prod. Sci. 33:183-198.
10. JOHNSON, N. L.; KOTZ, S., 1970: Distributions in statistics: continuous multivariate distributions. John Wiley and Sons, New York.
11. LE BIHAN-DUVAL, E.; BEAUMONT, C.; COLLEAU, J. J., 1996: Genetic parameters of twisted legs syndrome in broiler chickens. Genet. Sel. Evol. 28: 177-195.
12. LEENSTRA, F.; VAN VOORST, A.; HAYE, U., 1984: Genetic aspects of twisted legs in a broiler sire strain. Ann. Agric. Fenn. 23: 261-270.
13. LETERRIER, C.; NYS, Y., 1992: Clinical and anatomical differences in varus and valgus deformities of chick limbs suggest different aetio-pathogenesis. Avian Pathol. 21: 429-442.
14. MERCER, J. T.; HILL, W. G., 1984: Estimation of genetic parameters for skeletal defects in broiler chickens. Heredity 53: 193-203.
15. SAS, 1985: User's Guide: Statistics. SAS Institute Incorporation, Cary, NC.
16. SIMIANER, H.; SCHAEFFER, L. R., 1989: Estimation of covariance components between one continuous and one binary trait. Gen. Sel. Evol. 21: 303-315.
17. SORENSEN, P., 1989: Broiler selection and welfare. In: FAURE, J. M.; MILLS, D. (eds), Proceedings of the 3rd European Symposium on Poultry Welfare Tours, France 11-14 June 1989, pp. 45-58.
18. SORENSEN, P.; Harlou, B., 1984: Tibia disorder in broilers: estimation of heritability and relation to clinical investigation. In: Proceedings of the XVII World's Poultry Congress, 8-12 Aug., Hämeenlinna, pp. 163-164.
19. STRANDEN, L.; MANTYSAARI, E. A.; MAKI-TANILA, A., 1993: Change in genetic correlation due to selection using animal model evaluation. J. Anim. Breed. Genet. 110: 412-422.
20. VAN RADEN, P. M.; JUNG, Y. C., 1988: A general purpose approximation to restricted maximum likelihood: the tilde-hat approach. J. Dairy Sci. 71: 187-194.