Table 1.

Distribution of MIC values of the tested antimicrobials against the 41 Italian M dispar isolates collected from cattle between 2011–2019.

Antimicrobial	MIC Values (µg/mL)
	0.0078125	0.015625	0.03125	0.0625	0.125	0.25	0.5	1	2	4	8	16	32	64
Enrofloxacin						5	2	3	5	2	11 50	11 90	2 *
Oxytetracycline							10	6	5 50	5	3	5	1 90	6
Doxycycline					7	4	4	18 50	3	2 90	2	1
Erythromycin							1			1		39 50-90
Tylosin			2	3	4	16 50	5	3					3	5 90
Tilmicosin								1	2	2	6	7	12 50	11 90
Spiramycin							12	8	11 50		2	1	7 90
Tiamulin			1	1	2	5	19 50	7	6 90
Florfenicol							32 50	9 90
Lincomycin							17	14 50	2			1		7 90

The MIC values are expressed in μg/mL. The dilution range of each antibiotic is represented by the grey cells (e.g., enrofloxacin was tested from 0.125 to 16 µg/mL). Superscript numbers indicate the MIC50 and MIC90 values. * isolate numbers outside dilution range were not inhibited by the highest concentration of antibiotic; ⁵⁰ MIC50; ⁹⁰ MIC90.