Twenty five gram samples were placed in a sterile sampling bag
and homogenized for 5 min in a stomacher in 225 ml of Arcobacter
Enrichment Broth (AEB). AEB was prepared by adding cefoperazone–
amphotericin–teicoplanin (CAT) selective supplement to Arcobacter
enrichment basal medium (Oxoid, CM965). One milliliter of the homogenized
samplewas added to 9ml of AEBmedium. Theywere incubated
in a microaerophilic medium at 30 °C for 2 days (Shah et al., 2012a).
After incubation, 0.2 ml of the enriched sample was inoculated onto
blood agar base medium (Oxoid CM271) with 5% defibrinated sheep
blood with the membrane filtration method. Cellulose acetate membrane
filters with a diameter of 47 mm and a pore size of 0.45 μ were
used to remove other enteric bacteria (Atabay et al., 2003). These filters
were removed 1 h after culture and the samples were incubated under
microaerophilic conditions for 5–7 days.