Table 3.
Infection proportion of M. synoviae in embryos of 7 breeder farms in 2013
| Province | County | No. of farma | No. of positive samples | Positive prevalence | Sampling time |
|---|---|---|---|---|---|
| Guangdong | Xinxing, Gaoming | 2 | 92/250 | 36.80% | March, November |
| Hunan | Ningxiang | 1 | 4/180 | 2.22% | March |
| Guangxi | Yongning | 1 | 73/360 | 20.27% | March |
| Zhejiang | Nanxun, Wuxing | 3 | 48/542 | 8.85% | March, July, August |
| Total | 217/1332 | 16.29% | March–November |
aThe 7–9 day-old embryos were collected from 7 breeder farms. Allantoic fluid was collected from each embryo for detection of M. synoviae infection by PCR