Dust and ammonia in horse stalls with different ventilation rates and bedding |
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Authors: | Liz Curtis Susan Raymond Andrew Clarke |
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Institution: | (1) Equine Research Centre at The University of Guelph, N1G 2W1 Guelph, Ontario, Canada |
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Abstract: | Airborne particles and ammonia were monitored in horse stalls managed under four conditions. Two ventilation rates, high (27
air changes per h) and low (5 air changes per h) and two bedding types, paper and straw, were employed. At both ventilation
rates, the number of airborne particles generated while the stalls were mucked out was higher with straw than with paper.
Particles were more efficiently cleared at the higher ventilation rate in both the straw and paper stalls. Ammonia measurements
reflected an accumulation over time. In the stalls with low ventilation, ammonia levels were significantly higher than in
those stalls with high ventilation regardless of bedding type. Management decisions and their relationships to respiratory
disorders are discussed. |
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Keywords: | Aerobiology Aeroallergens Particles sampling Ammonia sampling Animal housing Ventilation Respiratory health |
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