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Elimination of dust production from stables for dairy cows

Author

Listed:
  • J. Dolejš

    (Research Institute of Animal Production, Prague-Uhříněves, Czech Republic)

  • O. Mašata

    (Research Institute of Animal Production, Prague-Uhříněves, Czech Republic)

  • O. Toufar

    (Research Institute of Animal Production, Prague-Uhříněves, Czech Republic)

Abstract

Three experiments with dairy cows were conducted in an air-conditioned stable under controlled conditions. The objective of the study was to determine the effect of the regulated ionic microclimate on the emission of dust particles (aerosol) up to the diameter of 10 μm (PM10). Four dairy cows were housed in common straw-bedded boxes and the stable was equipped with a vacuum ventilation system. To regulate the ionic microclimate, the apparatus Agri 1 000 (maximum voltage 7 kV, current 25 μA) was used. Thus the airborne dust concentration in the stable (42-132 μg/m3) was reduced by 12.7-26.2%. In experiments B and C statistical significance P ≤ 0.05 was reached. The emissive flow from the stable was decreased from 7.41-8.63 mg/h to 5.30-6.55 mg/h per one animal, i.e. by 24.1-31.3%. Owing to ionisation the ratio of n+ to n- ions was changed. A unipolarity coefficient (P) was changed from 1.65-1.93 to 0.82-0.89, i.e. superiority of n- ions.

Suggested Citation

  • J. Dolejš & O. Mašata & O. Toufar, 2006. "Elimination of dust production from stables for dairy cows," Czech Journal of Animal Science, Czech Academy of Agricultural Sciences, vol. 51(7), pages 305-310.
    • Handle: RePEc:caa:jnlcjs:v:51:y:2006:i:7:id:3943-cjas
    DOI: 10.17221/3943-CJAS
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    Cited by:

    1. S. Van Weyenberg & T. Ulens & K. De Reu & I. Zwertvaegher & P. Demeyer & L. Pluym, 2015. "Feasibility of Miscanthus as alternative bedding for dairy cows," Veterinární medicína, Czech Academy of Agricultural Sciences, vol. 60(3), pages 121-132.

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