http://www.cdc.gov/nasd/docs/d000801-d000900/d000843/d000843.html Highly Flammable or Combustible Materials - If at all possible, hay, straw and other types of bedding should not be stored in the same building in which livestock is housed. Care should be taken that these materials are not stored with machinery or near any type of electrical or heat source. Highly flammable materials may include:
* Hay and straw
* Bedding material (especially sawdust and shredded newspaper)
* Cobwebs, dust, and grain dust
* Horse blankets
* Paint
* Fertilizer
* Pesticides and herbicides