The ban on feed grade antibiotics cost Swedish producers $6/pig and Danish farmers $4.50/pig, according to a new report from Iowa State University economist Dermot Hayes.

Hayes notes that as use of antibiotic growth promoters declined, use of therapeutics increased, many of which are used in humans.

The use of antibiotics represented a 9% net return to finishing operations in Illinois in 2000, reports Gay Miller of the University of Illinois.

Assessing the risk to human health from the use of growth-promoting antibiotics in pork production is part of ongoing research at Illinois, she adds.

Presentations were made at the U.S. Animal Health Association Annual Meeting in St. Louis, MO.