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Relationships between milk urea and production and fertility traits in Holstein dairy herds in the Czech Republic

Author

Listed:
  • D. Řehák

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

  • R. Rajmon

    (Department of Veterinary Sciences, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences, Czech Republic)

  • M. Kubešová

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

  • M. Štípková

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

  • J. Volek

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

  • F. Jílek

    (Department of Veterinary Sciences, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences, Czech Republic)

Abstract

The objective of this study was to determine how the concentration of milk urea (MU) and FPCM production affect reproduction in selected Holstein dairy herds in the Czech Republic. A retrospective, observational study comprising analyses of individual cow records from monthly dairy herd improvement (DHI) milk tests including milk urea (MU) concentration was conducted in six commercial Holstein dairy herds in cows that were bred from July 2000 to August 2003. A total of 1 333 cows with available breeding date, pregnancy status, and calving to first service interval from 31 to 150 days were selected. The data were evaluated using the mixed linear model and logistic analyses. The effect of MU concentration on the probability of conception at first service was not significant (P = 0.11). The results indicated a nonlinear relationship between MU concentration and the probability of conception. A significant effect of the length of calving to first service interval (P < 0.05) and FPCM (P < 0.05) was determined. The cows with the calving to first service interval longer than 2 months had higher probability of conception (10% higher). In the group with the highest FPCM a markedly lower level of successful pregnancy was determined (38.99%), which significantly differed from the group with average FPCM production (48.53%). The probability of conception at first service in the group with the lowest FPCM is at an average level (43.55%).

Suggested Citation

  • 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.
    • Handle: RePEc:caa:jnlcjs:v:54:y:2009:i:5:id:1664-cjas
    DOI: 10.17221/1664-CJAS
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    References listed on IDEAS

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    1. F. Jílek & D. Řehák & J. Volek & M. Štípková & E. Němcová & M. Fiedlerová & R. Rajmon & D. Švestková, 2006. "Effect of herd, parity, stage of lactation and milk yield on urea concentration in milk," Czech Journal of Animal Science, Czech Academy of Agricultural Sciences, vol. 51(12), pages 510-517.
    2. O. Hanuš & P. Hering & J. Frelich & M. Jílek & V. Genčurová & R. Jedelská, 2008. "Reliability of results of milk urea analysis by various methods using artificial milk control samples," Czech Journal of Animal Science, Czech Academy of Agricultural Sciences, vol. 53(4), pages 152-161.
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    Cited by:

    1. 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.
    2. A. Jóźwik & N. Strzałkowska & E. Bagnicka & W. Grzybek & J. Krzyżewski & E. Poławska & A. Kołataj & J.O. Horbańczuk, 2012. "Relationship between milk yield, stage of lactation, and some blood serum metabolic parameters of dairy cows," Czech Journal of Animal Science, Czech Academy of Agricultural Sciences, vol. 57(8), pages 353-360.
    3. J. Čítek & V. Řehout & L. Hanusová & A. Míková & I. Jašková, 2011. "Polymorphisms in CGIL4, breeding value for somatic cell count and resistance to mastitis," Czech Journal of Animal Science, Czech Academy of Agricultural Sciences, vol. 56(7), pages 301-304.
    4. M. Czauderna & J. Kowalczyk, 2012. "Simple, selective, and sensitive measurement of urea in body fluids of mammals by reversed-phase ultra-fast liquid chromatography," Czech Journal of Animal Science, Czech Academy of Agricultural Sciences, vol. 57(1), pages 19-27.
    5. K. Yazgan & J. Makulska & A. Węglarz & E. Ptak & M. Gierdziewicz, 2010. "Genetic relationship between milk dry matter and other milk traits in extended lactations of Polish Holstein cows," Czech Journal of Animal Science, Czech Academy of Agricultural Sciences, vol. 55(3), pages 91-104.
    6. O. Hanuš & J. Frelich & M. Tomáška & M. Vyletělová & V. Genčurová & J. Kučera & J. Třináctý, 2010. "The analysis of relationships between chemical composition, physical, technological and health indicators and freezing point in raw cow milk," Czech Journal of Animal Science, Czech Academy of Agricultural Sciences, vol. 55(1), pages 11-29.
    7. P. Kišac & J. Brouček & M. Uhrinčať & A. Hanus, 2011. "Effect of weaning calves from mother at different ages on their growth and milk yield of mothers," Czech Journal of Animal Science, Czech Academy of Agricultural Sciences, vol. 56(6), pages 261-268.

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