Table 1 The results of the challenge test for the vaccinated and unvaccinated groups.
Chicken group | Vaccine No | Challenge strains | No. of chicken | No. of protected chicken | No. of unprotected chicken | Protection percentage % |
|---|---|---|---|---|---|---|
SiO2-CS | 1 | W (serovar A) | 10 | 8 | 2 | 80% |
0222 (serovar B) | 10 | 8 | 2 | 80% | ||
Modesto (serovar C) | 10 | 8 | 2 | 80% | ||
O.CS | 2 | W (serovar A) | 10 | 8 | 2 | 80% |
0222 (serovar B) | 10 | 7 | 3 | 70% | ||
Modesto (serovar C) | 10 | 7 | 3 | 70% | ||
SiO2 | 3 | W (serovar A) | 10 | 9 | 1 | 90% |
0222 (serovar B) | 10 | 8 | 2 | 80% | ||
Modesto (serovar C) | 10 | 9 | 1 | 90% | ||
Fe3O4 | 4 | W (serovar A) | 10 | 7 | 3 | 70% |
0222 (serovar B) | 10 | 6 | 4 | 60% | ||
Modesto (serovar C) | 10 | 7 | 3 | 70% | ||
+ ve control | 5 | W (serovar A) | 10 | 7 | 3 | 70% |
0222 (serovar B) | 10 | 6 | 4 | 60% | ||
Modesto (serovar C) | 10 | 6 | 4 | 60% | ||
Control unvaccinated (−ve control) | W (serovar A) | 10 | 0 | 10 | 0% | |
0222 (serovar B) | 10 | 0 | 10 | 0% | ||
Modesto (serovar C) | 10 | 0 | 10 | 0% | ||
