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Genetic relationship between type traits, number of lactations initiated, and lifetime milk performance in Czech Fleckvieh cattle

Author

Listed:
  • Luboš Novotný

    (Czech-Moravian Breeders' Corporation, Hradištko, Czech Republic)

  • Jan Frelich

    (Faculty of Agriculture, University of South Bohemia in České Budějovice, České Budějovice, Czech Republic)

  • Jan Beran

    (Faculty of Agriculture, University of South Bohemia in České Budějovice, České Budějovice, Czech Republic)

  • Ludmila Zavadilová

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

Abstract

Genetic relationship was analyzed between type traits and longevity measures in dual-purpose cattle. Data from 91 486 Czech Fleckvieh cows first calved between 2003 and 2009 were used. Longevity was defined as the actual number of lactations initiated per cow and also as functional longevity, which incorporated an adjustment to account for variation in voluntary culling based upon milk production. Lifetime performance was defined as cumulative milk production through the 6th parity. All cows were scored for conformation traits during their first lactation. Genetic correlations between these traits and longevity measures were estimated by bivariate analysis using the DMU variance component program package. Type trait heritabilities ranged from 0.30 to 0.59, while heritabilities for longevity and functional longevity were 0.06 and 0.05, respectively. Heritability of lifetime performance was 0.08. Genetic correlations between type traits and longevity measures ranged from low to intermediate values. Genetic correlations of the measured body size traits to the real and functional longevity ranged from -0.06 to -0.29, for udder traits from -0.02 to 0.33, and for foot and leg traits from -0.03 to 0.17. Genetic correlations between the measured body size traits and lifetime performance ranged from -0.03 to -0.30, for udder traits from 0.05 to 0.47, for foot and leg traits from -0.07 to 0.15. Genetic correlations of composite trait scores for frame, muscularity, feet and legs, and udder with longevity traits ranged from -0.20 to 0.41 and for lifetime performance -0.14 to 0.51. The highest genetic correlations between a type trait and functional longevity were for composite udder score (0.25), feet and legs (0.26), and udder depth (0.33), suggesting that these traits could serve as indicators of functional longevity. We conclude that selection based upon easily and inexpensively measured type traits could improve functional longevity of cows as well as lifetime milk production.

Suggested Citation

  • Luboš Novotný & Jan Frelich & Jan Beran & Ludmila Zavadilová, 2017. "Genetic relationship between type traits, number of lactations initiated, and lifetime milk performance in Czech Fleckvieh cattle," Czech Journal of Animal Science, Czech Academy of Agricultural Sciences, vol. 62(12), pages 501-510.
  • Handle: RePEc:caa:jnlcjs:v:62:y:2017:i:12:id:60-2017-cjas
    DOI: 10.17221/60/2017-CJAS
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    References listed on IDEAS

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    1. J. Bouška & M. Vacek & M. Štípková & A. Němec, 2006. "The relationship between linear type traits and stayability of Czech Fleckvieh cows," Czech Journal of Animal Science, Czech Academy of Agricultural Sciences, vol. 51(7), pages 299-304.
    2. L. Zavadilová & M. Štípková, 2012. "Genetic correlations between longevity and conformation traits in the Czech Holstein population," Czech Journal of Animal Science, Czech Academy of Agricultural Sciences, vol. 57(3), pages 125-136.
    3. L. Zavadilová & E. Němcová & M. Štípková & J. Bouška, 2009. "Relationships between longevity and conformation traits in Czech Fleckvieh cows," Czech Journal of Animal Science, Czech Academy of Agricultural Sciences, vol. 54(9), pages 385-394.
    4. L. Zavadilová & M. Štípková & E. Němcová & J. Bouška & J. Matějíčková, 2009. "Analysis of the phenotypic relationships between type traits and functional survival in Czech Fleckvieh cows," Czech Journal of Animal Science, Czech Academy of Agricultural Sciences, vol. 54(12), pages 521-531.
    5. Małgorzata Morek-Kopeć & Andrzej Zarnecki, 2017. "Genetic evaluation for functional longevity in Polish Simmental cattle," Czech Journal of Animal Science, Czech Academy of Agricultural Sciences, vol. 62(7), pages 276-286.
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    Cited by:

    1. Lenka Krpálková & Victor E. Cabrera & Ludmila Zavadilová & Miloslava Štípková, 2019. "The importance of hoof health in dairy production," Czech Journal of Animal Science, Czech Academy of Agricultural Sciences, vol. 64(3), pages 107-117.
    2. Zuzana Krupová & Marie Wolfová & Emil Krupa & Josef Přibyl & Ludmila Zavadilová, 2018. "Claw health and feed efficiency as new selection criteria in the Czech Holstein cattle Krupová Z., Wolfová M., Krupa E., Přibyl J., Zavadilová L," Czech Journal of Animal Science, Czech Academy of Agricultural Sciences, vol. 63(10), pages 408-418.

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