Abstract: The pigs fed with high grade corn or moldy corn were checked for swine fever antibodies and disease respectively. The pigs fed moldy corn had low levels of antibodies against swine fever, and there was zearalenone poisoning secondary for swine fever.The pigs fed with high grade corn had qualified levels of antibodies against swine fever, and no swine disease occured.

Key words: zearalenone; antibody against swine fever; swine fever