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The analysis of relationships between chemical composition, physical, technological and health indicators and freezing point in raw cow milk

Author

Listed:
  • O. Hanuš

    (Agrovýzkum Ltd., Rapotín, Czech Republic)

  • J. Frelich

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

  • M. Tomáška

    (Dairy Research Institute in Žilina, Žilina, Slovak Republic)

  • M. Vyletělová

    (Agrovýzkum Ltd., Rapotín, Czech Republic)

  • V. Genčurová

    (Agrovýzkum Ltd., Rapotín, Czech Republic)

  • J. Kučera

    (Czech Fleckvieh breeders Association, Prague, Czech Republic)

  • J. Třináctý

    (Agrovýzkum Ltd., Rapotín, Czech Republic)

Abstract

The milk freezing point (MFP) is used for the control of milk food chain quality especially for possible adulteration with water. A crucial issue is the acceptance of the legislative discrimination limit (RLDL) of MFP for standard quality. The aim was to explain the relations between MFP and spectrum of milk indicators (MI) and possible impacts of MFP on technological milk properties. 76 bulk milk samples (BMS) from Holstein (1, n = 36) and Czech Fleckvieh (2, n = 40) cattle were analyzed for 48 MIs. The dairy cows were relatively healthy as for the occurrence of production disorders. BMSs were taken from February to June. Extraneous water was excluded. 44 MIs were correlated with the MFP. The relations were not regularly consistent between breeds. Milk yield was connected with MFP (r = 0.40; P < 0.05). It shows the necessity of modification of RLDL of MFP in dependence on dairy cow breeding. Further relations (P ≤ 0.05) were among MFP and: total milk solids (r = -0.50); solids-non-fat (-0.33); crude protein (-0.32); true protein (-0.43); whey protein (-0.47); milk fat (-0.46); electrical conductivity (-0.35); lactose (-0.35); somatic cell count (-0.36); fat/protein ratio (-0.36); milk citric acid (0.47); Na (-0.34). The poor relations (P > 0.05) were among MFP and casein, milk urea and acetone. The cheese-making indicators were not affected by MFP. The MFP was related to milk fermentation indicators (r = from -0.34 to -0.39, P < 0.05). It is important for the control of milk food chain quality by MFP and for the estimation of its RLDL.

Suggested Citation

  • 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.
    • Handle: RePEc:caa:jnlcjs:v:55:y:2010:i:1:id:1708-cjas
    DOI: 10.17221/1708-CJAS
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    References listed on IDEAS

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    1. 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.
    2. 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.
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    Cited by:

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    2. M. Kankofer & E. Albera & M. Różańska-Boczula, 2010. "Activities of N-acetyl-β-d-glucosaminidase and glutathione peroxidase in bovine colostrum and milk," Czech Journal of Animal Science, Czech Academy of Agricultural Sciences, vol. 55(11), pages 488-495.
    3. L. Kolář & J. Frelich & J. Brouček & S. Kužel & J. Borová-Batt & J. Peterka & M. Šlachta & K. Volfová & J. Pezlarová & J. Hřebečková & V. Čechová, 2010. "Anaerobic degradability of organic matter of cattle faeces and a possibility of its utilization," Czech Journal of Animal Science, Czech Academy of Agricultural Sciences, vol. 55(12), pages 538-547.
    4. Renáta TOUŠOVÁ & Luděk STÁDNÍK & Jaromír DUCHÁČEK, 2013. "Effects of season and time of milking on spontaneous and induced lipolysis in bovine milk fat," Czech Journal of Food Sciences, Czech Academy of Agricultural Sciences, vol. 31(1), pages 20-26.

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