Johne’s Disease (individual) (PCR)

Preferred Sample

Feces (2 gram minimum), intestinal contents, intestine




Days Tested


Turnaround Time

1-3 days for individual samples


This assay targets the DNA of a portion of the genome of the bacterium Mycobacterium avium subsp. paratuberculosis (aka: MAP, Johne’s).



Bovine | Ovine | Caprine | Wildlife Exotic | Other

Shipping Requirements

To ensure inclusion in the test run, samples should arrive the day prior to test day.

Additional Instructions

See submission guide for sample collection and submission guidelines.

Indicate whether the samples should be pooled or tested individually, otherwise submissions containing greater than 5 samples will be pooled. Fecal samples can be tested in pools of up to 5 samples. Pooling will be done at the laboratory. See Johne’s Disease (pooled) (PCR).

The NDSU-VDL is an APHIS-approved laboratory to conduct official Johne’s testing. Approval is based on satisfactory annual proficiency test scores.