Johne’s Collection and Submission Guide
Collection and Submission of Fecal Samples for Johne’s PCR Testing
| Sample Type | Quantity | Container | Storage/Transport | Turnaround Time | |
|---|---|---|---|---|---|
| Feces | >5 grams or 1–2 mL |
Clean rigid plastic, screw-cap, leak-proof container; Clearly labeled with sample number only (1, 2, 3, etc.) |
Refrigerated up to 2 weeks. Ship on cold packs |
Busy season (fall/winter): <15 days Off-season: timelines posted on website. |
|
Containers
Preferred
- 25 mL or 50 mL conical tubes (free standing or U or V bottom)
- 2 oz (~60mLs) wide-mouth jars with screw cap lid (4 oz are fine too)
- Specimen/urine collection containers (Often ~3 or 4 oz)
- Sterile is preferred, but clean and manufacturer capped container is acceptable
Avoid
- Condiment or dipping sauce cups as they are not sturdy enough, nor are they screw cap.
- Milk collection snap-cap tubes because gases build up and cause tubes to open and s platter.
- Screw cap containers less than 10mLs, often used for cosmetics
- Sleeves or exam gloves, Whirl-paks, sandwich bags, grocery bags, glass containers will incur additional processing charges.
Revised 09-2026.