PREVALENCE OF CRYPTOSPORIDIUM AND GIARDIA INFECTIONS ON 2 OHIO PIG FARMS WITH DIFFERENT MANAGEMENT-SYSTEMS

The prevalence of Cryptosporidium and Giardia infections in pigs was i nvestigated by the use of a direct immunofluorescence assay on two Ohi o farms with different management systems. Cryptosporidium and Giardia infections were detected only in weanlings on the farm with slotted a nd wire floors, but in both weanlings and nursing piglets on the farm with porous concrete floors. Giardia infection was also detected in so ws on the latter farm. The farm with porous concrete floors had a sign ificantly higher Cryptosporidium infection rate in nursing piglets and Giardia infection rates in weanlings than the farm with slotted and w ire floors. Sows were implicated as the source of both Cryptosporidium and Giardia infections for nursing piglets.