Avens, J S Effect of filtering recycled air in a chick hatcher on airborne pathogenic microorganisms. [electronic resource] - Poultry science Mar 1975 - 594-9 p. digital Publication Type: Journal Article ISSN: 0032-5791 Standard No.: 10.3382/ps.0540594 doi Subjects--Topical Terms: Air MicrobiologyAnimalsBacteria--isolation & purificationChickensEscherichia coli--isolation & purificationFiltrationIncubators--instrumentationStaphylococcus--isolation & purificationVentilation