Table 1 Details of the bursa samples from different regions in southern and southwestern China
Farms | Province | Breed | Age (weeks) | Number tested | Number of positive ducks | Positive number (rate %) of DuCV | Number of Species ducks positive for DuCV/(%) | Number of ducks positive for DuCV/(%) |
|---|---|---|---|---|---|---|---|---|
1 | Guangdong | Mulard duck | 2 | 24 | 5 | 20.83% | 45/(39.47%) | 86/(34.4%) |
2 | Guangdong | Mulard duck | 6 | 13 | 5 | 38.46% | ||
3 | Guangdong | Mulard duck | 9 | 34 | 18 | 52.94% | ||
4 | Guangdong, | Mulard duck | 6 | 23 | 9 | 39.13% | ||
5 | Guangdong | Mulard duck | 6 | 20 | 8 | 40.00% | ||
6 | Guangdong | Cherry Valley pekin duck | 2 | 22 | 4 | 18.18% | 24/(30%) | |
7 | Guangdong | Cherry Valley pekin duck | 4 | 20 | 4 | 20.00% | ||
8 | Guangdong | Cherry Valley pekin duck | 7 | 38 | 16 | 42.11% | ||
9 | Guangdong | Muscovy duck | 9 | 15 | 8 | 53.33% | 11/(40.74%) | |
10 | Guangdong | Muscovy duck | 4 | 12 | 3 | 25.00% | ||
11 | Guangdong, | Mallard duck | 3 | 10 | 2 | 20.00% | 6/(20.69%) | |
12 | Guangdong, | Mallard duck | 4 | 19 | 4 | 21.05% | ||
13 | Guangxi | Mulard duck | 2 | 42 | 10 | 23.81% | 40/(31.75%) | 121/(34.38%) |
14 | Guangxi | Mulard duck | 5 | 30 | 11 | 36.67% | ||
15 | Guangxi | Mulard duck | 6 | 36 | 15 | 41.67% | ||
16 | Guangxi | Mulard duck | 4 | 18 | 4 | 22.22% | ||
17 | Guangxi | Cherry Valley pekin duck | 9 | 35 | 17 | 48.57% | 33/(41.77%) | |
18 | Guangxi | Cherry Valley pekin duck | 10 | 24 | 13 | 54.17% | ||
19 | Guangxi | Cherry Valley pekin duck | 2 | 20 | 3 | 15.00% | ||
20 | Guangxi | Muscovy duck | 4 | 19 | 4 | 21.05% | 15/(30.61%) | |
21 | Guangxi | Muscovy duck | 5 | 30 | 11 | 36.67% | ||
22 | Guangxi | Mallard duck | 4 | 25 | 7 | 28.00% | 33/(33.67%) | |
23 | Guangxi | Mallard duck | 5 | 30 | 12 | 40.00% | ||
24 | Guangxi | Mallard duck | 5 | 28 | 11 | 39.29% | ||
25 | Guangxi | Mallard duck | 3 | 15 | 3 | 20.00% | ||
26 | Yunnan | Mulard duck | 7 | 22 | 9 | 40.91% | 38/(43.68%) | 106/(43.09%) |
27 | Yunnan | Mulard duck | 7 | 18 | 8 | 44.44% | ||
28 | Yunnan | Mulard duck | 4 | 15 | 4 | 26.67% | ||
29 | Yunnan | Mulard duck | 9 | 32 | 17 | 53.13% | ||
30 | Yunnan | Cherry Valley pekin duck | 9 | 27 | 14 | 51.85% | 14/(51.85%) | |
31 | Yunnan | Muscovy duck | 6 | 22 | 10 | 45.45% | 33/(39.76%) | |
32 | Yunnan | Muscovy duck | 8 | 30 | 16 | 53.33% | ||
33 | Yunnan | Muscovy duck | 3 | 31 | 7 | 22.58% | ||
34 | Yunnan | Mallard duck | 6 | 27 | 12 | 44.44% | 21/(42.86%) | |
35 | Yunnan | Mallard duck | 5 | 22 | 9 | 40.91% | ||
Total | Three province | ducks | 848 | 313 | 313/(36.91%) |