Indoor distribution characteristics of airborne bacteria in pig buildings as influenced by season and housing type

Asian-Australasian Journal of Animal Sciences
Ki Youn Kim, Han-Jong Ko

Abstract

A concentration of airborne bacteria generated from swine houses is recognized to be relatively higher than other work places and it is essential to optimally manage it to prevent farmers' respiratory diseases. This study was conducted to assess the distribution characteristics of airborne bacteria in swine houses located at South Korea. A total 27 pig buildings of the enclosed type operated with mechanical ventilation system by a side wall fan and deep-pit manure system with slats were surveyed. Air samples were collected at 1.0 m above the middle floor in pig housing room. A six-stage viable particulate cascade impactor was used to identify the distribution of the sizes of particles in diameter. Seasonal mean levels of airborne bacteria in the housing rooms of gestation/farrowing pigs, nursery pigs and growing/fattening pigs were 3,428(±1,244) colony forming unit (cfu)/m3, 8,325(±3,209) cfu/m, and 13,254(±6,108) cfu/m3 for spring; 9,824(±2,157) cfu/m3, 18,254(±5,166) cfu/m3, and 24,088(±9,274) cfu/m3 for summer; 1,707(±957) cfu/m3, 4,258 (±1,438) cfu/m3, and 8,254(±2,416) cfu/m3 for autumn; and 2,322(±1,352) cfu/m3, 6,124(±1,527) cfu/m3 and 12,470(±4,869) cfu/m3 for winter, respectively. Concentrations of airborne bacteria ac...Continue Reading

References

Jan 1, 1991·International Archives of Occupational and Environmental Health·D HeederikJ S Boleij
Jun 1, 1990·American Industrial Hygiene Association Journal·Y CormierJ Lavoie
Jul 1, 1983·American Industrial Hygiene Association Journal·S ClarkL Larsson
Jan 30, 2002·Current Microbiology·Bernardo Z PredicalaRobert D Goodband
Sep 10, 2016·Asian-Australasian Journal of Animal Sciences·Conference Thando MpenduloMichael Chimonyo

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Citations

Feb 9, 2021·Ecotoxicology and Environmental Safety·Qian TangChunmei Li
Jul 1, 2021·Journal of Animal Science and Technology·Se-Woon HongMinseok Kim

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