Table 1 Brachyspira hyodysenteriae strains, experimental set-up and results for faecal excretion and clinical signs of SD
Virulence trial number | B. hyodysenteriae strain | Strength of haemolysis | Model and inoculation route | Number of pigs positive for faecal excretiona | Number of pigs with SDa |
|---|---|---|---|---|---|
1 | 8dII | Strong | Direct oral inoculation | 2/6 | 2/6 |
2 | B204 | Strong | Direct gastric inoculation | 5/9 | 5/9 |
3 | 49 | Strong | Seeder model | 5/14 | 4/14 |
4 | D28 | Weak | Direct oral inoculation | 5/8 | 0/8 |
5 | D28 | Weak | Direct gastric inoculation | 4/12 | 0/12 |
Seeder vaccination experiment | D28 | Weak | Direct oral inoculation | 25/30 | 0/30 |