TABLE 4.
M. avium subsp. paratuberculosis isolated from free-ranging wildlife in Georgia
| Parameter | Farm
|
||||
|---|---|---|---|---|---|
| G1 | G2 | G3 | G4 | G5 | |
| Farm type/herd size | Beef/740 | Dairy/430 | Dairy/140 | Beef/21 | Beef/69 |
| Herd prevalencea (%) | 1.6 | 7.4 | 0.0 | 9.1 | 10.1 |
| No. of wild animals sampled | 100 | 48 | 63 | 56 | 100 |
| No. of samples collected | 268 | 198 | 240 | 142 | 382 |
| % Contaminatedb | 0.7 | 6.1 | 4.6 | 3.5 | 11.0 |
| No. of samples positived | 8 | 1 | 0 | 0 | 2 |
| No. of animals positived | 6 | 1 | 0 | 0 | 2 |
| Infection prevalence (%) | 6.0 | 2.1 | 0 | 0 | 2.0 |
| No. of animals sheddingc | 1 | 0 | 0 | 0 | 2 |
a
G1 values were determined by ELISA; G3 to G5 values were determined by individual fecal culture; G2 values were determined by fecal pools of five. A value of 7.4% represents eight positive pools of five cows from a total of 108 pools and assumes one positive cow per pool.
b
Lost due to overgrowth of nonmycobacterial organisms.
c
M. avium subsp. paratuberculosis isolated from fecal samples.
d
See Table 3, footnote d.