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Selection of a suitable definition of environment for the estimation of genotype × environment interaction in the weaning weight of beef cattle

Author

Listed:
  • L. Vostrý

    (Czech University of Life Sciences Prague, Prague, Czech Republic
    Institute of Animal Science, Prague-Uhříněves, Czech Republic)

  • J. Přibyl

    (Institute of Animal Science, Prague-Uhříněves, Czech Republic)

  • V. Jakubec

    (Czech University of Life Sciences Prague, Prague, Czech Republic)

  • Z. Veselá

    (Institute of Animal Science, Prague-Uhříněves, Czech Republic)

  • I. Majzlík

    (Czech University of Life Sciences Prague, Prague, Czech Republic)

Abstract

Genotype by environment interactions for weaning weight in beef cattle were tested using several definitions of environments. Four breeds of beef cattle (Hereford, Aberdeen Angus, Beef Simmental, and Charolais) were represented. The environments were defined according to five criteria: altitude, production areas, economic value of the land, less favourable areas, and performance levels of a breed within herds. Ten mixed models were compared including the effects of direct and maternal genetics, herd-year-season, maternal permanent environmental, breed, environment, genotype × environment interaction, sex of calf, and age of dam. The suitability of the models was tested by Akaike's Information Criterion, likelihood ratio test, and magnitude of the residual variance. The most suitable definitions of environment were less favoured areas and herd levels of performance. Estimates of direct heritability ranged from 0.07 to 0.19. Genotype × environment interactions should be included in a genetic evaluation model for interbreed comparisons of beef cattle in the Czech Republic.

Suggested Citation

  • L. Vostrý & J. Přibyl & V. Jakubec & Z. Veselá & I. Majzlík, 2008. "Selection of a suitable definition of environment for the estimation of genotype × environment interaction in the weaning weight of beef cattle," Czech Journal of Animal Science, Czech Academy of Agricultural Sciences, vol. 53(10), pages 407-417.
    • Handle: RePEc:caa:jnlcjs:v:53:y:2008:i:10:id:351-cjas
    DOI: 10.17221/351-CJAS
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    References listed on IDEAS

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    1. E. Krupa & M. Wolfová & D. Peškovičová & J. Huba & Z. Krupová, 2005. "Economic values of traits for Slovakian Pied cattle under different marketing strategies," Czech Journal of Animal Science, Czech Academy of Agricultural Sciences, vol. 50(10), pages 483-492.
    2. D. Rasch & O. Mašata, 2006. "Methods of variance component estimation," Czech Journal of Animal Science, Czech Academy of Agricultural Sciences, vol. 51(6), pages 227-235.
    3. Z. Veselá & J. Přibyl & L. Vostrý & L. Štolc, 2007. "Stochastic simulation of the influence of insemination on the estimation of breeding value and its reliability," Czech Journal of Animal Science, Czech Academy of Agricultural Sciences, vol. 52(8), pages 236-248.
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    1. J. Přibyl & J. Haman & T. Kott & J. Přibylová & M. Šimečková & L. Vostrý & L. Zavadilová & V. Čermák & Z. Růžička & J. Šplíchal & M. Verner & J. Motyčka & L. Vondrášek, 2012. "Single-step prediction of genomic breeding value in a small dairy cattle population with strong import of foreign genes," Czech Journal of Animal Science, Czech Academy of Agricultural Sciences, vol. 57(4), pages 151-159.

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