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dust |
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dust heavy dust such as in dust storms or volcanic fallout may contaminate animal feed sufficiently to cause sand colic in horses. Ruminants seem not to be much affected. dust balls equine intestinal foreign bodies composed of plant fibers with a superficial coating of dense minerals. Because of their light weight they are often evacuated with the feces. dust inhalation important risk factor in etiology of coccidioidomycosis (corral dust), chronic obstructive pulmonary disease in horses (feed dust in stables). dust mite see housedust mite. dust rhinotracheitis dusty feed fed in a confined space such as a stable can cause chronic coughing due to rhinotracheitis in cattle. |
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To investigate such associations, physician Hirohisa Takano of the National Institute for Environmental Studies in Tsukuba, Japan, and his colleagues repeatedly injected mice with an allergen produced by dust mites as well as with pure vegetable oil or oil laced with various doses of DEHP. Volatile organic compounds, mold, dust mites, smoke, and pet dander are also said to be neutralized. Settled dust and airborne dust mite allergen concentrations are highly variable, with reported coefficients of variation of 30% or more (Platts-Mills and Chapman 1987). |
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dust mite