The Iowa State University College of Veterinary Medicine Veterinary Diagnostice and Production Animal Medicine group is an excellent resource for mold and mycotoxin information.  The University of Nebraska has also posted several links to sources of addition information regarding molds & mycotoxins in corn.

A more recent and comprehensive article relating to the effect of Mold and Mycotoxin Issues in Dairy Cattle: Effects, Prevention and Treatment is an article authored by Drs. Whitlow and Hagler at NC State.