Table 1.
Campylobacter spp. prevalence, number and species distribution in the dairy cattle farms
| Source | Age group | Prevalence (%) (pos. samples/no. of samples tested) | Quant. load (log 10 cfu/g) (Mean ± SD) |
Positive samples No./% |
||||
|---|---|---|---|---|---|---|---|---|
| C. jejuni | C. coli | C. lari | C. fetus subsp. fetus | C. spp. | ||||
| Farm I |
Calves |
89.4a* (17/19) |
5.62a* ± 0.95 |
7/41.2 |
4/23.5 |
- |
4/23.5 |
3/17.6 |
| |
Heifers |
85b (17/20) |
4.37b ± 0.54 |
13/76.5 |
1/5.9 |
2/11.8 |
3/17.6 |
1/5.9 |
| |
Cows |
53.2c (11/21) |
3.55c ± 0.92 |
11/100.0 |
3/27.3 |
- |
- |
- |
| Farm II |
Calves |
70a (14/20) |
4.64a ± 1.29 |
6/42.9 |
1/7.1 |
1/7.1 |
4/28.6 |
3/21.4 |
| |
Heifers |
85b (34/40) |
4.48b ± 0.69 |
21/61.8 |
13/38.2 |
2/5.9 |
1/2.9 |
5/14.7 |
| |
Cows |
70a (14/20) |
4.17c ± 0.54 |
7/50.0 |
5/35.7 |
- |
6/42.9 |
1/7.1 |
| Farm III |
Calves |
100a (20/20) |
5.49a ± 0.90 |
14/70.0 |
5/25.0 |
- |
- |
5/25.0 |
| |
Heifers |
90b (18/20) |
4.82b ± 0.83 |
17/94.4 |
5/27.8 |
- |
- |
3/16.7 |
| |
Cows |
60c (12/20) |
3.29c ± 0.44 |
8/66.7 |
1/8.3 |
- |
1/8.3 |
5/41.7 |
| Total | 78.5% (157/200) | 4.5 ± 1.03 | ||||||
*-Numbers followed by a different letter in the column are significantly different (p < 0.05) for different age groups the individual farm.