Fig. 1.
Distribution of <25mm inhibition zone diameters of Riemerella anatipestifer under the action of selected antibiotics
| AM | Number of strains inhibited in a zone of the stated diameter (diameters in mm) | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| <10 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | |
| AMP | 1 | 1 | 2 | ||||||||||||||
| P | 1 | 1 | 3 | ||||||||||||||
| CL | 1 | ||||||||||||||||
| CAZ | 1 | ||||||||||||||||
| CFX | 1 | ||||||||||||||||
| AK | 1 | 1 | 3 | 8 | 2 | 3 | 1 | 2 | |||||||||
| S | 17 | 3 | 1 | 1 | 1 | 1 | |||||||||||
| DA | 22 | ||||||||||||||||
| SH | 1 | 3 | 2 | 1 | |||||||||||||
| E | 21 | 1 | |||||||||||||||
| DO | 1 | 4 | 1 | 2 | 5 | 3 | 1 | 4 | |||||||||
| ENR | 18 | 2 | 2 | 2 | |||||||||||||
| C | 1 | 1 | 3 | 3 | 8 | 3 | 1 | 1 | 1 | ||||||||
| SXT | 1 | ||||||||||||||||
Distribution of minimum bactericidal concentration (MBC) of selected phytogenics for Riemerella anatipestifer strains
| Phytogenic | Number of strains susceptible to this MBC (MBC in μg/mL) | MBC50 μg/mL | MBC90 μg/mL | |||||
|---|---|---|---|---|---|---|---|---|
| >300 | 300 | 150 | 75 | 37.5 | 18.75 | |||
| Trans-cinnamaldehyde | 1 | 22 | 1 | 75 | 75 | |||
| Geraniol | 1 | 19 | 4 | 150 | 150 | |||
| Eugenol | 1 | 22 | 1 | 300 | 300 | |||
| Carvacrol | 4 | 20 | 150 | 300 | ||||
Riemerella anatipestifer strain description and origin
| Strain number | Poultry flock location (voivodeship) | Poultry species | Date of strain isolation | Anatomical site |
|---|---|---|---|---|
| 910/24 | Warmińsko-mazurskie | Turkey | 03/09/2024 | Trachea |
| 899/24 | Mazowieckie | Turkey | 30/08/2024 | Brain |
| 767/24 | Mazowieckie | Chicken | 30/07/2024 | Lungs |
| 750/24 | Świętokrzyskie | Chicken | 27/07/2024 | Trachea |
| 660/24 | Kujawsko-pomorskie | Goose | 27/07/2024 | Brain |
| 596/24 | Mazowieckie | Chicken | 03/06/2024 | Trachea |
| 563/24 | Mazowieckie | Chicken | 30/05/2024 | Lungs |
| 503/24 | Warmińsko-mazurskie | Turkey | 15/05/2024 | Trachea |
| 369/24 | Mazowieckie | Chicken | 06/04/2024 | Trachea |
| 342/24 | Pomorskie | Chicken | 25/03/2024 | Infraorbital sinus |
| 337/24 | Mazowieckie | Chicken | 22/03/2024 | Hock joint |
| 272/24 | Mazowieckie | Chicken | 05/03/2024 | Hock joint |
| 1223/23 | Mazowieckie | Duck | 27/10/2023 | Hock joint |
| 1171/23 | Mazowieckie | Chicken | 14/10/2023 | Infraorbital sinus |
| 1034/23 | Podlaskie | Turkey | 13/09/2023 | Trachea |
| 984/23 | Kujawsko-pomorskie | Chicken | 30/08/2023 | Trachea |
| 833/23 | Mazowieckie | Turkey | 29/07/2023 | Trachea |
| 784/23 | Warmińsko-mazurskie | Turkey | 26/07/2023 | Trachea |
| 780/23 | Warmińsko-mazurskie | Turkey | 26/07/2023 | Trachea |
| 761/23 | Warmińsko-mazurskie | Turkey | 17/07/2023 | Trachea |
| 655/23 | Mazowieckie | Chicken | 23/06/2023 | Lungs |
| 310/23 | Mazowieckie | Chicken | 19/03/2023 | Trachea |
| 257/23 | Mazowieckie | Turkey | 06/03/2023 | Trachea |
| 152/23 | Mazowieckie | Turkey | 14/02/2023 | Infraorbital sinus |
Distribution of >25mm inhibition zone diameters of Riemerella anatipestifer under the action of selected antibiotics
| AM | Number of strains inhibited in a zone of the stated diameter (diameters in mm) | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 26 | 27 | 28 | 29 | 30 | 31 | 32 | 33 | 34 | 35 | 36 | 37 | 38 | 39 | 40 | >40 | |
| AMP | 1 | 1 | 7 | 1 | 1 | 2 | 1 | 5 | 1 | |||||||
| P | 2 | 1 | 7 | 2 | 1 | 2 | 2 | 2 | ||||||||
| CL | 1 | 1 | 1 | 1 | 1 | 1 | 11 | 6 | ||||||||
| CAZ | 2 | 1 | 2 | 1 | 1 | 2 | 10 | 4 | ||||||||
| CFX | 1 | 1 | 1 | 1 | 8 | 11 | ||||||||||
| AK | 1 | 1 | 1 | |||||||||||||
| S | ||||||||||||||||
| DA | 1 | 1 | ||||||||||||||
| SH | 2 | 2 | 3 | 1 | 7 | 1 | 1 | |||||||||
| E | 1 | 1 | ||||||||||||||
| DO | 1 | 2 | ||||||||||||||
| ENR | ||||||||||||||||
| C | 1 | 1 | ||||||||||||||
| SXT | 1 | 1 | 1 | 3 | 1 | 4 | 6 | 1 | 3 | 2 | ||||||
Distribution of minimum inhibitory concentration (MIC) of selected phytogenics for Riemerella anatipestifer strains
| Phytogenic | Number of strains susceptible to this MIC (MIC in μg/mL) | MIC50 μg/mL | MIC90 μg/mL | |||||
|---|---|---|---|---|---|---|---|---|
| >300 | 300 | 150 | 75 | 37.5 | 18.75 | |||
| Trans-cinnamaldehyde | 15 | 9 | 75 | 75 | ||||
| Geraniol | 1 | 8 | 15 | 75 | 150 | |||
| Eugenol | 1 | 17 | 6 | 300 | 300 | |||
| Carvacrol | 1 | 17 | 6 | 150 | 150 | |||