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Iodine content in raw milk

Author

Listed:
  • J. Travnicek

    (Department of Anatomy and Physiology of Farm Animals, Faculty of Agriculture, University of South Bohemia, Ceske Budejovice, Czech Republic)

  • I. Herzig

    (Veterinary Research Institute, Brno, Czech Republic)

  • J. Kursa

    (Department of Anatomy and Physiology of Farm Animals, Faculty of Agriculture, University of South Bohemia, Ceske Budejovice, Czech Republic)

  • V. Kroupova

    (Department of Anatomy and Physiology of Farm Animals, Faculty of Agriculture, University of South Bohemia, Ceske Budejovice, Czech Republic)

  • M. Navratilova

    (Veterinary Research Institute, Brno, Czech Republic)

Abstract

The paper presents the latest information on iodine content in raw milk, in the CzechRepublic. In 2005, iodine was determined using the Sandell-Kolthoff method in 169 milk samples, taken from transportation tanks (capacity 11 000-13 000 litres) of collecting milk for dairy processing, from 14 areas of South-western Bohemia. The average iodine content in milk samples was 442.5 ± 185.6 µg/l, minimum and maximum value were 68.6 and 1 000.6 µg/l respectively. 81.7% of the samples contained more than 250 µg/l. The average iodine content in milk from the collecting areas ranged from 230.2 ± 133.0 µg/l to 702.7 ± 166.2 µg/l (P < 0.001). In five collecting areas (i.e. 35.7%), means were higher than 500 µg/l. These values document the continuing trend of an increase in iodine content in raw cow's milk, as well as permanent local and regional differences. Higher mean values were determined in the period of winter feed rations (April 495.9 ± 50.8 and October 494.3 ± 176.4 µg/l), while lower values were measured during the period of summer feed rations (September 350.9 ± 178.4 µg I/l) (P < 0.01). If converted per dry matter, 1 kg of dry milk matter contained, on average, 3.428 ± 1.497 mg iodine, maximum and minimum values were 0.543 and 7.995 mg respectively.

Suggested Citation

  • J. Travnicek & I. Herzig & J. Kursa & V. Kroupova & M. Navratilova, 2006. "Iodine content in raw milk," Veterinární medicína, Czech Academy of Agricultural Sciences, vol. 51(9), pages 448-453.
    • Handle: RePEc:caa:jnlvet:v:51:y:2006:i:9:id:5574-vetmed
    DOI: 10.17221/5574-VETMED
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    References listed on IDEAS

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    1. L. Čurda & J. Rudolfová, 2000. "Changes of iodine content in milk of cows treated with Betadine," Czech Journal of Food Sciences, Czech Academy of Agricultural Sciences, vol. 18(1), pages 5-8.
    2. J. Trávníček & V. Kroupová & M. Šoch, 2004. "Iodine content in bulk feeds in western and southern bohemia," Czech Journal of Animal Science, Czech Academy of Agricultural Sciences, vol. 49(11), pages 483-488.
    3. L. Pavlata & J. Prasek & J. Filipek & A. Pechova, 2004. "Influence of parenteral administration of selenium and vitamin E during pregnancy on selected metabolic parameters and colostrum quality in dairy cows at parturition," Veterinární medicína, Czech Academy of Agricultural Sciences, vol. 49(5), pages 149-155.
    4. I. Herzig & J. Travnicek & J. Kursa & V. Kroupova, 2005. "The content of iodine in pork," Veterinární medicína, Czech Academy of Agricultural Sciences, vol. 50(12), pages 521-525.
    5. L. Pavlata & S. Slosarkova & P. Fleischer & A. Pechova, 2005. "Effects of increased iodine supply on the selenium status of kids," Veterinární medicína, Czech Academy of Agricultural Sciences, vol. 50(5), pages 186-194.
    6. J. Travnicek & V. Kroupova & I. Herzig & J. Kursa, 2006. "Iodine content in consumer hen eggs," Veterinární medicína, Czech Academy of Agricultural Sciences, vol. 51(3), pages 93-100.
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