Tetracycline inhibition zone diameters | |||||
Sample no. (n = 10) | Tetracycle disc (10 µg) | Gel-2 | Gel-3 | Gel-4 | Gel-5 |
Average | 33.0 | 33.6 | 36.3 | 36.9 | 33.8 |
Standard deviation | 0.0 | 0.5 | 0.4 | 0.2 | 0.8 |