Table 1.
The number of samples and positive rate of Clostridium perfringens from different samples.
| Source | No. (%) of cloacal swab samples | No. (%) of environmental samples |
No. (%) of all samples | No. of isolates1 | |||||
|---|---|---|---|---|---|---|---|---|---|
| Total | Feed | Water | Soil | Duck feces | Others | ||||
| TA (Farm 1) | 112 (49.12)a | 30 (23.33)b | 4 (50.00) | 8 (12.50) | 4 (25.00) | 4 (75.00) | 10 (0.00) | 142 (43.66)b | 120 |
| LC (Farm 2) | 40 (72.50)b | 11 (81.82)a | 2 (100.00) | 4 (50.00) | — | 2 (100.00) | 3 (100.00) | 51 (74.51)a | 96 |
| LC (Farm 3) | 55 (50.91)a | 11 (36.36)b | 2 (100.00) | 4 (50.00) | — | 2 (0.00) | 3 (0.00) | 66 (48.48)b | 70 |
| WF (Farm 4) | 110 (41.82)a | 55 (52.73)b | 17 (70.59) | 15 (6.67) | 3 (100.00) | 7 (100.00) | 13 (46.15) | 165 (45.45)b | 116 |
| In total | 317 (49.84)a | 107 (45.79)b | 25 (72.00) | 31 (19.35) | 7 (57.14) | 15 (80.00) | 29 (31.03) | 424 (48.82)b | 402 |
a,bMeans in the same column with different lowercase letters are significantly different (P < 0.05).
Abbreviations: LC, Liaocheng; TA, Tai'an; WF, Weifang.
1
At least 1 C. perfringens was collected from each positive sample.