Table 1. Mortality, body weight and S. Choleraesuis status of piglets post challenge.
| Group | Piglet No. | Survival status | Body weight change (kg) | Isolation of S. Choleraesuis | |||
|---|---|---|---|---|---|---|---|
| liver | lung | spleen | kidney | ||||
| control | 26 | Dead | / | + | + | + | + |
| 32 | Dead | / | + | + | + | + | |
| 33 | Alive | −9.9 | + | + | + | − | |
| 38 | Alive | 1.5 | − | − | − | − | |
| 50 | Dead | / | + | + | + | + | |
| PO | 13 | Alive | 13.8 | − | − | − | − |
| 14 | Alive* | − | − | − | − | − | |
| 15 | Alive | 17.8 | − | − | − | − | |
| 21 | Alive | 5.2 | − | − | − | − | |
| 23 | Alive | 24.2 | − | − | − | − | |
| IM | 1 | Dead | / | + | + | + | + |
| 6 | Alive | −9.3 | + | + | − | + | |
| 7 | Alive | 13.3 | − | − | − | − | |
| 31 | Dead | / | − | − | − | − | |
| 36 | Alive | 9.3 | − | − | − | − | |
/: not determined. +: Salmonella was isolated. −: No Salmonella was isolated. *The piglet died on the 32th day post challenge, while its body weight increased by 2.4 kg on the 17th day post challenge. Since no bacteria were isolated from this piglet, the pig was regarded as protected by vaccination.