Perceived Usefulness of the Collection of Subclinical and other Disease Entities Detected at Slaughter.

Based on a survey of 1820 Ontario pork producers and 16 veterinary members of the Ontario Swine Practitioners Association, condemnation/demerit data, while viewed as potentially valuable, are seldom, if ever, utilized in the provision of herd health programs. We found, however, that: 1) 89.4 percent (SD 1.04 percent) of producers and all veterinarians would use the disease information made available by a computerized system that would collect and report on subclinical and other disease entities detected during the slaughter of hogs; 2) Iesion diagnosis should be as detailed as possible and report on severity of disease; and 3) with the exception of those producers who ship larger numbers of hogs to market for which reports were wanted for each kill, monthly reports would be adequate.Written comments by producers expressed concerns about confidentiality of individual herd data, costs for the information/service, and veterinary expertise in the interpretation of findings.