Concentrations of airborne bacteria and fungi in a livestock building with caged laying hens

This paper describes the concentrations of airborne bacteria and fungi in a cage housed laying hens facility, during a production year. Levels of airborne bacteria established in the air of the poultry house ranged from 1.02×10 4 CFU/m 3 measured in April, to 7.72×10 4 CFU/m 3 measured in December. Mean values of the total number of fungi ranged from 0.075×10 4 CFU/m 3