Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
The different treatment used in experiment 2.
| Groups/No | Number of birds | 1 day old | 5 days old | 18 days old |
|---|---|---|---|---|
| 5 | 20 | H9N2 | IBV vaccine | NDV vaccine |
| 6 | 20 | H9N2 | - | NDV vaccine |
| 7 | 15 | - | - | NDV vaccine |
| 8 | 10 | - | - | - |
IBV=Infectious bronchitis coronavirus, NDV=Newcastle disease virus
