Table 3.
Groupa | Oropharyngeal swabs | Cloacal swabs | ||||
---|---|---|---|---|---|---|
5 dpc | 7 dpc | 9 dpc | 5 dpc | 7 dpc | 9 dpc | |
PBS-IN | 6/6 | – | – | 6/6 | – | – |
PBS-IM | 6/6 | – | – | 6/6 | – | – |
cVLPs-IN | 4/9 | 2/9 | 0/9 | 1/9 | 0/9 | 0/9 |
cVLPs-IM | 4/9 | 2/9 | 0/9 | 5/9 | 1/9 | 0/9 |
DCpep-cVLPs-IN | 2/9 | 0/9 | 0/9 | 0/9 | 0/9 | 0/9 |
DCpep-cVLPs-IM | 1/9 | 1/9 | 0/9 | 0/9 | 0/9 | 0/9 |
Commercial vaccine | 7/9 | 4/9 | 1/9 | 3/9 | 2/9 | 0/9 |
aThe immunised chickens were challenged with the virulent NDV Herts/33 strain. Dpc represents days post-challenge.
“–” represents chickens that died in the PBS groups.