Strains
|
IVPI
|
ICPI
|
MDT
|
---|
NDV/chicken/Egypt/2/2006
|
2.1 ± 0.24
|
1.6 ± 0.15
|
60 ± 1.5
|
NDV/chicken/Egypt/3/2006
|
2.2 ± 0.29
|
1.8 ± 0.19
|
50 ± 1.8
|
NDV/chicken/Egypt/4/2006
|
2.25 ± 0.23
|
1.7 ± 0.18
|
55 ± 2.3
|
NDV/LaSota
|
ND
|
0.0
|
102 ± 2.5
|
- Intravenous pathogenicity index (IVPI) was done in 6-week-old chickens, intracerebral pathogenicity index (ICPI) test in 1-day-old chicks inoculated intracerebrally and mean death time (MDT) in 9-day-old eggs inoculated through allantoic cavity following standard protocol.