Table 1.
Age group structure of sampled female cattle (n = 780) and serological status for N. caninum, *only age group is known (i.e., adults), date of birth was not recorded.
| Age group | Years of age | n positive | % positive | n |
|---|---|---|---|---|
| Calves (<1 year old) | 0 | 1 | 20.0 | 5 |
| Yearlings (1 ≤ years old < 2) | 1 | 1 | 10.0 | 10 |
| Adults (≥2 years old) | 2 | 3 | 3.9 | 77 |
| 3 | 3 | 2.0 | 154 | |
| 4 | 8 | 6.5 | 124 | |
| 5 | 1 | 0.8 | 119 | |
| 6 | 6 | 6.7 | 89 | |
| 7 | 1 | 1.6 | 61 | |
| 8 | 1 | 2.0 | 49 | |
| 9 | 2 | 7.4 | 27 | |
| 10 | 2 | 9.1 | 22 | |
| 11 | 2 | 20.0 | 10 | |
| 12 | 0 | 0.0 | 6 | |
| 13 | 0 | 0.0 | 4 | |
| 14 | 1 | 50.0 | 2 | |
| 15 | 1 | 33.3 | 3 | |
| 16 | 0 | 0.0 | 1 | |
| na* | 0 | 0.0 | 17 | |
| Total | 33 | 4.2 | 780 |