Table 3.
Comparison of Mycobacterium avium ssp. paratuberculosis fecal shedding status as determined by fecal culture using standard and extended incubation times, and fecal PCR, in 397 dairy sheep sampled in Ontario, Canada in 2010–2011
| Fecal PCR positive | Fecal PCR negative | Total | ||
|---|---|---|---|---|
| Standard Incubation Time (49 days) | Fecal culture positive | 4 (1.0 %) | 7 (1.8 %) | 11 (2.8 %) |
| Fecal culture negative | 56 (14.1 %) | 330 (83.1 %) | 386 (97.2 %) | |
| Total | 60 (15.1 %) | 337 (84.9 %) | 397 | |
| Extended Incubation Time (240 days) | Fecal culture positive | 10 (2.5 %) | 20 (5.0 %) | 30 (7.6 %) |
| Fecal culture negative | 50 (12.6 %) | 317 (79.8 %) | 367 (92.4 %) | |
| Total | 60 (15.1 %) | 337 (84.9 %) | 397 |