TABLE 2.
Tracheal levels of cytadherence-deficient mutants of M. gallisepticum in experimentally infected chickens
| Day p.i. | CCU for M. gallisepticuma:
|
|||
|---|---|---|---|---|
| E117 | E345 | E325 | R-low | |
| 3 | 2.0 ± 0.82 A | 1.2 ± 0 A | 1.2 ± 0.96 A | 4.7 ± 0.58 B |
| 6 | 2.5 ± 0.58 A | 1.2 ± 0.50 A | 1.7 ± 1.3 A | 6.3 ± 0.58 B |
| 10 | 1.3 ± 1.15 A | 0.2 ± 0.50 A | 1.2 ± 0.86 A | 5.3 ± 0.58 B |
| 14 | 1.0 ± 0.82 A | 1.0 ± 0.82 A | 1.2 ± 0.96 A | 4.7 ± 2.38 B |
a
CCU for M. gallisepticum organisms isolated in mycoplasma broth cultures from tracheal swab samples. The inoculum was 107 CFU. For each sampling time, four birds were used for E117, E345, and E325, and three birds were used for R-low. Statistical analysis was done by Duncan's multiple-range test for mean and standard deviation log tracheal levels of M. gallisepticum. Comparisons were made at each sampling time among all four groups. Different letters following data indicate significant differences at a P value of P < 0.001.