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Characteristics of Microbial Aerosol Pollution in Pig Houses


  [Objective] To explore the characteristics of microbial aerosol pollution in different pig houses and provide theoretical foundation for risk assessment of microbial aerosols on human and animal health.[Method] Gestation house,nursery house and fattening house in suburb of Beijing were chosen as research objects,and the concentration,size distribution and composition characteristics of the airborne microorganisms were determined.[Result] The concentrations of airborne microorganisms were completely different in different houses under the influences of ventilation,methods of cleaning manure and pig populations.The highest concentration of airborne microrganisms was the nursery house.The particles with diameter size of 0.65-2.10 μm carried 26%-27% heterotrophic bacteria and 39%-43% fungi.They could reach alveolus of humans and animals and thus made infectious threat to health of humans and animals.The dominant heterotrophic bacteria genera were composed of Bacillus and Pseudomonas;and the dominant fungi were Penicillium and Muco.[Conclusion] Concentrations of airborne microorganisms are completely different in different houses.However,there is no significant difference between the microbial composition and type of pig houses.……   
[关键词]:Pig houses;Microbial aerosol;Heterotrophic bacteria;Fungi
[文献类型]:期刊
[文献出处]: 《Animal Husbandry and Feed Science2010年Z1期
[格式]:PDF原版; EPUB自适应版(需下载客户端)