Effects of frequency and quantity of sprinkling canola oil on dust reduction in swine buildings
1996
Zhang, Y. | Tanaka, A. | Barber, E.M. | Feddes, J.J.R.
Dust concentrations in animal buildings can be reduced by sprinkling a small quantity of canola oil on the floor. The efficiency of dust reduction was expected to be dependent on the frequency and quantity of oil application. Canola oil was sprinkled at six application rates (QF1 to QF6) in three identical swine grower/finisher rooms to examine the effect of oil application frequency and quantity on dust concentration in the room air. For the six oil application rates, dust concentration was reduced between 37 to 89% with an overall mean reduction of 71 and 76% for modified respirable (0.5 to 5 micrometers) and inhalable (> 0.5 micrometer) dust, respectively. At the same total volume of oil sprinkled, a higher oil application frequency was more effective than a lower application frequency in terms of dust reduction. However, sprinkling more often than once a day is difficult when the oil application is less than 10 mL/m2 per day. The more oil sprinkled, the more dust could be reduced. Variable daily dosages (from 30 to 10 mL/m2) for oil sprinkling had a higher efficiency of dust reduction than a constant daily dosage (20 mL/m2).
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