Table 1.
Pathological changes in the gizzard
| |
|
Macroscopical lesions |
Histological lesions |
||
|---|---|---|---|---|---|
| Group | dpi | Koilin layer | Gizzard mucosa | Inclusion bodies in glandular epithelium | In-situ hybridization |
| SPFB |
3 |
0/5 (0.0)a |
0/5 (0.0) |
0/5 (0.0) |
0/5 |
| 7 |
5/5 (1.8) |
5/5 (1.8) |
5/5 (2.6) |
5/5 |
|
| 10 |
5/5 (2.4) |
5/5 (1.0) |
1/5 (0.2) |
1/5 |
|
| 14 |
5/5 (1.8) |
2/5 (0.4) |
0/5 (0.0) |
NEb |
|
| 17 |
4/5 (0.8) |
3/5 (0.6) |
0/5 (0.0) |
NE |
|
| CB |
3 |
0/5 (0.0) |
0/5 (0.0) |
0/5 (0.0) |
0/5 |
| 7 |
3/5 (0.6) |
3/5 (0.8) |
4/5 (1.6) |
4/5 |
|
| 10 |
4/5 (1.2) |
5/5 (1.6) |
5/5 (2.0) |
5/5 |
|
| 14 |
5/5 (2.2) |
4/5 (0.8) |
0/5 (0.0) |
NE |
|
| 17 | 5/5 (1.6) | 4/5 (0.8) | 0/5 (0.0) | NE | |
Specific-pathogen-free (SPFB) and commercial (CB) broilers orally infected with virulent FAdV-1 at 3, 7, 10, 14 and 17 days post infection (dpi).
a No. birds positive/no. birds examined (mean lesion scores in parenthesis; no lesion = 0, mild lesions = 1, moderate lesions = 2 and severe lesions = 3).
b NE – not examined.