TABLE 1.
Numbers of individual birds in each sampling period and prevalence of C. jejuni colonization
| Group | Result for sampling period: |
|||||||
|---|---|---|---|---|---|---|---|---|
| January-February |
March-April |
July-August |
October-November |
|||||
| Total no. | % with C. jejuni | Total no. | % with C. jejuni | Total no. | % with C. jejuni | Total no. | % with C. jejuni | |
| 1999 | ||||||||
| Juveniles | 21 | 4.8 | 33 | 33.3 | 70 | 34.3 | 80 | 41.2 |
| Adults | 36 | 8.3 | 142 | 17.6 | 37 | 29.7 | ||
| All ages | 57 | 7.0 | 175 | 20.6 | 117 | 37.6 | ||
| 2000 | ||||||||
| Juveniles | 17 | 23.5 | 31 | 38.7 | 86 | 32.6 | 99 | 59.6 |
| Adults | 20 | 20.0 | 114 | 17.5 | ||||
| All ages | 37 | 21.6 | 145 | 22.1 | ||||