Table 4. Loss of trachea cilia from challenged chickens
Group | Loss of trachea cilia1 (Mean±SD) |
URTB | MRTC | LRTD |
G1 | K24/18 | 3.2±0.8 | 3.2±1.1 | 2.4±1.1 |
G2 | K29/18 | 4.0±0.0 | 3.8±0.4 | 3.6±0.9 |
G3 | K183/18 | 3.8±0.4 | 4.0±0.0 | 4.0±0.0 |
G4 | Control | 0.2±0.4 | 0.2±0.4 | 0.3±0.5 |
Loss of trachea cilia scores: 0=normal cilia; 1=<25% cilia damaged; 2=25∼50% cilia damaged; 3=50~75% cilia damaged; 4=75~100% cilia damaged. URT, upper respiratory tract; MRT, Middle respiratory tract; LRT, lower respiratory tract.