| Johne's Disease Program |
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| Let's clean up Johne's |
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Lets clean up Johnes flyer.pdf
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| Johne's Testing Options |
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Serum ELISA -
Detects 85% of moderate to high shedding animals. Detects proportionally lower percentage of low shedding animals.
Misses up to 15% of moderate to high shedders.
When used in conjunction with effective management has been shown to significantly reduce the level of infection in a herd.
Results within one week. Should be most effective when used regularly in a dry cow testing regime. $2.75/test
Fecal Culture -
Culture is more sensitive than ELISA. Should detect all moderate to high shedding animals.
Culture should detect a greater percentage of low shedding animals than ELISA.
Very low counts (1 or 2 colony forming units) may be due to pass through:
- 1/3 will show increased shedding and eventually become clinical
- 1/3 continue to shed very low levels of organism
- 1/3 may not culture positive again
Requires six weeks to detect high shedders and 12 weeks to full results.
Effective in vaccinated herds.
May be a desirable method in herds that are not seeing enough progress with ELISA testing, or in herds that are close to eradication. In herds with low prevalence (<10% culture positive), pooling may be considered to reduce cost.
Should be most effective when used regularly in a pre-dry test regime.
$10/test
Fecal Real time PCR -
A rapid tool for detecting high shedders.
Results available within one week
Effective in vaccinated herds.
Should be most effective when used regularly in a dry cow testing regime.
$15/test (requires a minimum of 30 head for this price)
For Further Information Regarding Johne's Testing Options:
Call - Bruce Mueller, ODA Field Veterinarian
503-986-4685
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| 2008 management update |
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With approximately 150 participating herds, well over 30,000 animals tested annually and 19 Johne’s status herds, Oregon continues to achieve a nationally recognized Johne’s program. This work is accomplished through the cooperative efforts of dairy farmers, creameries, private veterinarians, Dairy Farmers of Oregon, OSU Extension, the United States Department of Agriculture and the Oregon Department of Agriculture.
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| Johne's status herd |
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The following herds are enrolled in the Johne’s status program in the state of Oregon. These herds have been tested negative for Johne’s, have up-to-date risk assessments and management plans, and have requested to make their Johne’s status public.
Negative results on annual herd tests increase herd status levels.
Level Four: (99 percent confident of having a non-infected herd)
Mistvale Farms / The Fletchers
| Buz Gibson / Lockmead Dairy
| The Johnstons / Spring Valley Farm
| | Oregon State University Dairy | Jack Perrin
| Dean and Patty Tohl
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Level Three: (98 percent confident of having a non-infected herd)
Level Two: (95 percent confident of having a non-infected herd)
Tim Jenck
| John and Gloria Lekerkerker
| | River Bend Jerseys / The Mahaffy's | Bill Mast
| Lynne & Randall Miller (testing pending for level three)
| | Rocha Jerseys | | Sun Valley Jerseys / The Seals | Milky Way Dairy / The Williamsons
| | Mission Lane Farm / The Zielinskis |
Level One: (85% confident of having a non-infected herd)
Little River Jerseys / The Heathershaws
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Level A: (achieved whole herd negative test)
Dan Leuthold*
| The Mann's / Mann's Guernsey Dairy*
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* - Both of these are vaccinated herds. By USDA rules these herds are not eligible for higher than level A status.
Johne's status of a herd and herd health management practices are important considerations when purchasing breeding stock.
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| Testing through ODA |
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USDA funding has been reduced to 10% of 2006 levels. With this limited funding, ODA will offer the following options to Oregon cattle producers.
Johne's Subsidized Testing (At Cost of Test Materials)
- Participants must have a current Risk Assessment and Management Plan
- All test results are confidential
- Tests available as follows:
-SEE JOHNE'S TESTING OPTIONS SUMMARY ON THIS SITE-
- Blood ELISA: $2.75/test
- Fecal Culture: $10.00/test
- Fecal PCR: $15/test (requires 30 or more headfor this price)
Risk Assessments and Management Plans
- Contact your private practitioner or ODA to conduct a Risk Assessment and prepare a Management Plan. This assessment and plan provides as effective means of dealing with Johne's and all other fecal borne diseases.
- There are 150 Oregon dairy herds enrolled in the Johne's Management Program.
Johne's status herds
- There are 20 herds in the Johne's test negative program and more herds applying.
- If you want to participate, call (503) 986-4680, for a free Level One qualifying test.
Johne's program questions
- Contact your herd veterinarian
- Bruce Mueller, field veterinarian for the Oregon Department of Agriculture - (503) 986-4680
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