In this research project two organic and two conventional housing systems for fattening pigs are assessed in regard to the emission of microorganisms, endotoxins and dust. The concentrations of microorganisms and endotoxins varied between the different housing systems while no distinct differences for the dust concentrations were observed. Endotoxins concentrations reached up to 14 495 EU/cubic meter median) in deep litter stable, indicating the high exposure with biological agents during farm work. The differences between the stables could not be assigned to the organic or conventional kind of husbandry but to the management of the systems.
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