Investigations on the sensitivity of avian Campylobacter spp. isolates to antimicrobial drugs
2008
Urumova, V., Thracian University, Stara Zagora (Bulgaria) | Vashin, I., Thracian University, Stara Zagora (Bulgaria) | Stoyanchev, T., Thracian University, Stara Zagora (Bulgaria) | Lyutskanov, M., Thracian University, Stara Zagora (Bulgaria)
The sensitivity of 39 Campylobacter spp. strains, isolated from broiler chickens and mule ducks to 5 antimicrobial drugs was tested. The samples originated from two poultry slaughterhouses in South Bulgaria. The inhibition zones were interpreted by the three-degree system of Bauer-Kirby's disk diffusion method according to NCCLS requirements. The highest resistance percentage (66.7%) was observed to ampicillin. The resistance of studied isolates to erythromicin was 10.3% and to tetracycline - 5.1%. Against fluorinated quinolones, a resistance of 15.4% against each of norfloxacin and enrofloxacin has been observed. A resistance pattern characterized with (A Nor Enr) profile was encountered in 3 strains (7.6%). The profile (A Ery Tet) was also seen in three tested isolates. The commonest pattern of resistance (43.5%) was determined in campylobacteria, resistant only to ampicillin (A), folowed by isolates, sensitive to all five tested chemotherapeutics (33.3%).
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