Table 2.
Antimicrobial activity of commercial antimicrobial agentson six microorganism using disk diffusion method:
| organism | Inhibition zone of extract (mm) |
||||||
|---|---|---|---|---|---|---|---|
| Amoxicillin-Clavulinic(10 μg) | Ampicillin(10 μg) | Vancomycin (30 μg) | Lincomycin(30 μg) | Gentamicin(10 μg) | Streptomycin(10 μg) | Tetracycline(30 μg) | |
| S. aureus | 25 ± 0.71 (S) | 13.0 ± 0.4 (R) | 17.0 ± 0.4(S) | 27.0 ± 0.65 (S) | 10.0 ± 0.23 (R) | 12.0 ± 1.15 (R) | 11.0 ± 0.71 (R) |
| B. cereus | 23.0 ± 0.45 (S) | 11.0 ± 1.25 (R) | 18.0 ± 1.15 (S) | 25.0 ± 0.02 (S) | 10.0 ± 0.54 (R) | 10.0 ± 0.71 (R) | 17.0 ± 0.49 (I) |
| E. coli | 17.0 ± 1.15 (I) | 10.0 ± 0.71 (R) | 19.0 ± 0.25 (S) | 21.0 ± 0.25 (S) | 21.0 ± 0.4 (S) | 15.0 ± 0.75 (I) | 10.0 ± 1.15 (R) |
| S. Enteritidis | 16.0 ± 0.25 (I) | 9.0 ± 1.15 (R) | 19.0 ± 0.75 (S) | 20.0 ± 1.15 (S) | 22.0 ± 0.69 (S) | 19.0 ± 0.4 (S) | 13.0 ± 0.36 (S) |
| P. multocida | 23.0 ± 1.05 (S) | 8.0 ± 0.25 (R) | 10.0 ± 0.55 (R) | 17.0 ± 0.4 (I) | 9.0 ± 0.71 (R) | 11.0 ± 0.25 (R) | 18.0 ± 0.25 (I) |
| M. gallisepticum | 15 ± 1.15 (I) | 10.0 ± 0.85 (R) | 11.0 ± 1.25 (R) | 21.0 ± 0.89 (S) | 8.0 ± 0.46 (R) | 11.0 ± 1.25 (R) | 16.0 ± 0.4 (I) |
S = Sensitive I = Intermediate R = Resistant.