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Emission of materials of biological origin in laying hens houses with different technologies of rearing

Author

Listed:
  • G. Vaičionis

    (Institute of Animal Science of Lithuanian Veterinary Academy, Baisogala, Lithuania)

  • V. Ribikauskas

    (Institute of Animal Science of Lithuanian Veterinary Academy, Baisogala, Lithuania)

  • A. Benediktavičiute-Kiškiene

    (Institute of Animal Science of Lithuanian Veterinary Academy, Baisogala, Lithuania)

  • I. Skurdeniene

    (Institute of Animal Science of Lithuanian Veterinary Academy, Baisogala, Lithuania)

Abstract

The aim was to determine the conversion of alimentary substances of laying hens (nitrogen, phosphorus, potassium) into the production of eggs and to determine the emission of nitrogen, air pollution by dust and microorganisms in accordance with different technologies of layer rearing. The studies were conducted in 6 poultry houses. The birds were kept in premises in cage batteries BKN-3, "Spech", OBN-1, OBN-3 or on littered floor. It was found out that there was 1.6 times more dust in the air of poultry house where laying hens were kept on litter and the total number of bacteria was 2.4 times higher than in the bird cages (P < 0.001). The laying hens assimilated 21.95-28.42% of nitrogen, 19.63-31.25% of phosphorus, 6.04-8.33% of potassium for egg production and weight gains when feed is balanced. If cage technologies are applied, over a year, there is a loss of 6.7 ± 1.4% of nitrogen through the excrements because of nitrogen emission. When the technologies of littered floor are used, there is a loss of 18.5 ± 4.8% of nitrogen extricated with the excrements (P < 0.025). When the birds were kept in cages, 0.059 ± 0.011 kg of nitrogen per each bird evaporated because of ammonia emission, while in the case of littered floor - 0.227 ± 0.126 kg of nitrogen.

Suggested Citation

  • G. Vaičionis & V. Ribikauskas & A. Benediktavičiute-Kiškiene & I. Skurdeniene, 2006. "Emission of materials of biological origin in laying hens houses with different technologies of rearing," Czech Journal of Animal Science, Czech Academy of Agricultural Sciences, vol. 51(10), pages 458-465.
    • Handle: RePEc:caa:jnlcjs:v:51:y:2006:i:10:id:3965-cjas
    DOI: 10.17221/3965-CJAS
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    Cited by:

    1. M. Knížatová & Š. Mihina & J. Brouček & I. Karandušovská & J. Mačuhová, 2010. "The influence of litter age, litter temperature and ventilation rate on ammonia emissions from a broiler rearing facility," Czech Journal of Animal Science, Czech Academy of Agricultural Sciences, vol. 55(8), pages 337-345.

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