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Table 2 MIC of six antimicrobial substances for two control strains from two tests under identical conditions as for the Treponema sp. isolates.

From: Isolation and characterization of Treponema phagedenis-like spirochetes from digital dermatitis lesions in Swedish dairy cattle

Strain

Days of incubation

MIC (μg/ml)

  

Tiamulin

Valnemulin

Tylosin

Aivlosin

Lincomycin

Doxycycline

Staphylococcus aureus

CCUG 15915

4 and 7

>1

0.5–2a

0.25–0.5

2

0.5–4a

4

1–2

0.5

0.12–0.5a

Brachyspira hyodysenteriae

B78T ATCC 27164T

7 and 11

0.125

0.016–0.063b

0.063

0.008–0.031b

8–16

2–16b

1–2

0.5–4b

0.5–1

0.125–1b

0.25

0.063–4b

  1. a Approved quality control ranges by the CLSI for susceptibility tests performed by micro dilution in Mueller Hinton broth [25, 26].
  2. b Proposed quality-control ranges by Pringle et al. for susceptibility tests performed in brain heart infusion broth with 10% fetal calf serum [24].