Table 5. The antibody titer of the four groups of Gushi chickens during different growth periods.
| Antibody titer1 | Group | Age (days) |
|||
|---|---|---|---|---|---|
| 56th | 70th | 84th | 98th | ||
| H5N1 | A | 9.13 | 10.00 | 9.42 | 6.53 |
| B | 9.24 | 9.60 | 9.54 | 7.28 | |
| C | 9.18 | 9.60 | 8.91 | 6.66 | |
| D | 9.26 | 10.10 | 8.55 | 7.03 | |
| P-value | 0.995 | 0.297 | 0.649 | 0.174 | |
| H9N2 | A | 10.52 | 12.00 | 12.19 | 11.40a |
| B | 10.52 | 11.83 | 12.00 | 11.83a | |
| C | 10.46 | 11.33 | 11.94 | 11.24ab | |
| D | 10.20 | 11.45 | 11.52 | 10.63b | |
| P-value | 0.905 | 0.153 | 0.161 | 0.012 | |
| NDV | A | 6.30 | 9.20 | 9.94ab | 9.90 |
| B | 6.67 | 10.00 | 10.75a | 10.62 | |
| C | 6.86 | 9.57 | 10.62a | 10.00 | |
| D | 6.40 | 9.59 | 9.83b | 10.20 | |
| P-value | 0.445 | 0.068 | 0.047 | 0.115 | |
a–b
Means within a day with different superscripts are significantly different (P<0.05).
1
H5N1: avian influenza viruses H5N1 (Re-5 strain); H9N2: avian influenza viruses H9N2 (Re-2 strain); NDV: Newcastle disease virus; Titers are reported as logarithms (base 2)