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Air sac lesion scores
| Group | Chicken number (N) | Air sac lesion scores |
|---|---|---|
| PBS | 25 | 2.6 (0.3)a |
| WT | 25 | 2.5 (0.3)a |
| TM-1 | 25 | 0.7 (0.2)b |
| MG attenuated vaccine | 25 | 0.5 (0.1)b |
The superscript letters (a, b) represent date from groups that were statistically significant (P < 0.05) scales when compared to each other
