Optimization and comparison of bacterial load and sampling time for bioaerosol detection systems in a poultry layer house Academic Article uri icon

abstract

  • In order to develop an effective bacterial aerosol sampling system for commercial poultry housing, total bacterial populations were monitored using different air-sampling systems in a poultry layer house. To find the optimum sampling time for the detection of airborne bacteria, an axial fan Puralator filter (a home air conditioning filter attached to a household box fan), a circulating fan filter (glass fiber filter attached to a circulating fan with an adjustable flow rate), and all-glass impinger samples were compared over 2 d. Accumulated samples were collected continuously over 36 h, and nonaccumulated samples were collected concurrently during 4 distinct periods within this 36-h collection period. The air-sampling results also were compared with conventional drag-swab samples from the same poultry house environment. Total bacterial colony-forming units recovered from impingers and circulating fan filters were typically less variable. The axial fan samples by comparison had higher variability. Overall aerosol bacterial counts were higher when collected by the impactors before adjusting for airflow rate. Higher yields of total bacterial colony-forming units were recovered from impingers after being recalculated for airflow rate. The further development of aerosol sampling systems may allow for continuous monitoring of microbial populations in a poultry layer house.

published proceedings

  • JOURNAL OF APPLIED POULTRY RESEARCH

author list (cited authors)

  • Woodward, C. L., Park, S. Y., Jackson, D. R., Li, X. I., Birkhold, S. G., Pillai, S. D., & Ricke, S. C.

citation count

  • 8

complete list of authors

  • Woodward, CL||Park, SY||Jackson, DR||Li, XI||Birkhold, SG||Pillai, SD||Ricke, SC

publication date

  • October 2004