Airborne Dust Concentrations in Livestock Buildings and the Effect of Feed

Agricultural Lung Diseases

“…Methods of control include decreasing dust generation by adding mist, adding vegetable oil to feed, sprinkling oil on the animals, and using wet methods to dean surfaces (58). The use of canola oil sprinkled in a swine room significantly decreased adverse respiratory effects in human subjects and concomitantly decreased dust, endotoxin levels, H2S, and ammonia (59,60).…”

Exposure to particles and fungi in Portuguese swine production

“…In pig buildings, particulate matters like dust play a role in not only deteriorating indoor air quality but also in causing adverse health effects on workers (Donham et al, 1990;Pearson and Sharples, 1995;Mackiewicz, 1998;Kim et al, 2008). Generally, dust is recognized to adsorb and transport odorous compounds (Carpenter, 1986) and biological agents (Robertson et al, 1984;Kim et al, 2005) such as fungi (HSE, 2008).…”

Within-farm transmission of bovine paratuberculosis: recent developments

“…Bioaerosols are aerosols containing particles of biological origin (Stark 1999). Particle sizes may range between 0.5 and 100 mm (Pearson and Sharples 1995). Particles 4 10 mm are visible to the naked eye.…”

“…Particles of all sizes can settle in the environment, and due to explorative calf behavior, dust will be ingested by licking and suckling. Particles between 5 and 20 mm can be inhaled but will be removed by the mucociliary epithelium in the upper respiratory tract, presented to the nasal associated tissue and subsequently swallowed (CEN 1993;Pearson and Sharples 1995;Lugton 1999). The 'fecal-oral route' is then re-established, with pathogens entering either through the tonsils when swallowed or through the digestive tract (Payne et al 1960;Payne and Rankin 1961;Neill et al 1988;Lombard 2011).…”