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AT THIS SITE TN Voluntary Johne’s
Disease Program for Cattle * |
Transmission is primarily through infected feces, though it may also be transmitted in-utero and through infected colostrum and milk. Symptoms include chronic diarrhea and wasting. Animals become unproductive and subject to culling. The State of Tennessee Voluntary Johne's Disease Program seeks to prevent spread of the disease through education, safe trade practices, and effective control and prevention measures. Best management practices are custom tailored to individual producers based upon a site visit by state or federal veterinarians or certified private practice veterinarians. During these site visits, certified veterinarians perform risk assessments for Johne's Disease and develop management plans to best control and prevent Johne's Disease on your farm. Tennessee Voluntary Johnes Disease Program (TVJDP) Update: Funds allocated for 2007 by the USDA for the TVJDP are substantially reduced from earlier periods. Previously, we had funds available to provide a fee basis program for veterinarians to perform risk assessments and management plans and to collect samples for Johnes Disease Testing. Budget constraints have necessitated the fee basis program be discontinued. However, Kord Diagnostic Lab continues to offer serum, fecal and environmental testing for Johne’s Disease at no cost. The following tests are available: · The Idexx Elisa Test – uses serum, primarily to be used as a screening tool and generally a positive needs to be confirmed with a fecal culture. · The Bactec Midget fecal culture system - uses fecal material or environmental samples. This relatively new test can show a “hot” positive within 7 days, however you need up to 42 days for complete results. This is much better than the previous 12-16 weeks required for the old slant culture tubes. You will also notice in the lab report, we have attempted to quantitate the relative bacterial load by classifying as heavy, moderate or light shedders. Remember when submitting stool samples to place them in sealed containers to prevent contamination. · The Biochor Test - this test is for sheep and goats and uses serum. It was added during 2006 due to demand. Why participate in the TVJDP? Producers may want to enroll for two reasons. They have Johne's Disease and want to control and prevent further spread or they don’t have Johne's Disease and want to prevent introduction of the disease or want to market animals as having negative Johne's testing over time. To enroll in the Tennessee Voluntary Johne's Disease Program, please contact your herd veterinarian or Charles Hatcher, Designated Johnes Disease Coordinator, Tennessee Department of Agriculture at 615-837-5183 or email at charles.hatcher@state.tn.us.
National Johne's Working
Group |
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