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Genetic parameters for female fertility and milk production traits in first-parity Czech Holstein cows

Author

Listed:
  • V. Zink

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

  • J. Lassen

    (Department of Genetics and Biotechnology, Danish Institute of Agricultural Sciences, Aarhus University, Tjele, Denmark)

  • M. Štípková

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

Abstract

The aim of this study was to estimate genetic parameters for female fertility and production traits in first-parity Czech Holstein cows and to quantify the effect of using this information on the accuracy of a selection index in seven different scenarios. In order to estimate genetic (co)variance components, the DMU software running an AI-REML algorithm was used. The analyses were made using a series of bivariate animal models. The pedigree included 164 125 animals and it was set up using a pruned animal model design. The present study included the following female fertility traits for the first lactations: calving to the first insemination (CF), days open (DO), calving from the first to the last insemination (FL), and milk production traits: milk production (MLK), kg of fat (FAT), and kg of protein (PROT). The heritability for all the investigated fertility traits was low and close to 0. Moderate heritabilities for production traits ranging from 0.20 (MLK) to 0.23 (PROT) were estimated. The strongest unfavourable correlation was found between PROT and DO (0.49). Other estimated correlations between fertility traits and production traits were moderate, ranging from 0.26 to 0.41. The results of this study evidence that cows with the poorest genetic potential for reproductive performance are those having high genetic potential for milk production and milk components. The results also show that the number of days from calving to new pregnancy depends on the production level. Seven investigated scenarios using selection index theory show a clear trend for increasing accuracy when more fertility traits were added as well as when higher numbers of daughters with information on reproduction traits per sire were available.

Suggested Citation

  • V. Zink & J. Lassen & M. Štípková, 2012. "Genetic parameters for female fertility and milk production traits in first-parity Czech Holstein cows," Czech Journal of Animal Science, Czech Academy of Agricultural Sciences, vol. 57(3), pages 108-114.
    • Handle: RePEc:caa:jnlcjs:v:57:y:2012:i:3:id:5562-cjas
    DOI: 10.17221/5562-CJAS
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    References listed on IDEAS

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    1. F. Jílek & P. Pytloun & M. Kubešová & M. Štípková & J. Bouška & J. Volek & J. Frelich & R. Rajmon, 2008. "Relationships among body condition score, milk yield and reproduction in Czech Fleckvieh cows," Czech Journal of Animal Science, Czech Academy of Agricultural Sciences, vol. 53(9), pages 357-367.
    2. D. Řehák & R. Rajmon & M. Kubešová & M. Štípková & J. Volek & F. Jílek, 2009. "Relationships between milk urea and production and fertility traits in Holstein dairy herds in the Czech Republic," Czech Journal of Animal Science, Czech Academy of Agricultural Sciences, vol. 54(5), pages 193-200.
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    Cited by:

    1. Michaela Brzáková & Ludmila Zavadilová & Josef Přibyl & Petr Pešek & Eva Kašná & Anita Kranjčevičová, 2019. "Estimation of genetic parameters for female fertility traits in the Czech Holstein population," Czech Journal of Animal Science, Czech Academy of Agricultural Sciences, vol. 64(5), pages 199-206.
    2. J. Brouček & M. Uhrinčať & V. Tančin & A. Hanus & P. Tongeľ & Ľ. Botto & I. Bôžik, 2013. "Performance and behaviour at milking after relocation and housing change of dairy cows," Czech Journal of Animal Science, Czech Academy of Agricultural Sciences, vol. 58(9), pages 389-395.
    3. V. Zink & L. Zavadilová & J. Lassen & M. Štípková & M. Vacek & L. Štolc, 2014. "Analyses of genetic relationships between linear type traits, fat-to-protein ratio, milk production traits, and somatic cell count in first-parity Czech Holstein cows," Czech Journal of Animal Science, Czech Academy of Agricultural Sciences, vol. 59(12), pages 539-547.
    4. L. Zavadilová & V. Zink, 2013. "Genetic relationship of functional longevity with female fertility and milk production traits in Czech Holsteins," Czech Journal of Animal Science, Czech Academy of Agricultural Sciences, vol. 58(12), pages 554-565.
    5. L. Zavadilová & M. Štípková, 2013. "Effect of age at first calving on longevity and fertility traits for Holstein cattle," Czech Journal of Animal Science, Czech Academy of Agricultural Sciences, vol. 58(2), pages 47-57.

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