Abstract

The objects of study were microorganisms, isolated from pathological material of chicken breeds "RoSS 208" and "Luong Phuong"; ducklings breeds "C. V. super M" and a "Khaki Campbell"; quails breed "Coturnix". In 499 samples of the birds material we discovered 153 microorganisms cultures of the genus Salmonella, which were 30.66 % of the total number of selected microorganisms cultures, including S. typhimurium – 60 (39.22 %) strains; S. albany – 32 (of 20.92 %); S. enteritidis – 20 (13.07 %); S. hadar – 9 (5.88%); S. agonа and S. thompson – 5 (3.27 %); S. indiana – 4 (2.61 %); S. heidelberg, S. mbandaka and S. shalkwijk – 3 (1.96 %); S. give – 2 (1.31 %); S. derby and S. havana – 1 (0.65 %); other serovar – 5 (3.27 %). It was found that 70.0 % of the studied strains were sensitive to drugs of the fluoroquinolone group (nalidixic acid, norfloxacin, ciprofloxacin, enrofloxacin), 66.67 % – cephalosporins (ceftazidim). 83.33 % of strains were resistant to tetracycline drugs (tetracycline); 63.33 % - β-lactams (ampicillin); 56.67 % - aminoglycosides (gentamicin, kanamycin, streptomycin); 46.67 % - sulfonamides (trimethoprim). The minimum inhibitory concentration ("MIC") were established at the intersection of the growth suppression zone and the test strip "E-test": ampicillin-512 µg/ml; tetracycline – 64 µg/ml; gentamicin – 2 µg/ml; ciprofloxacin – 1 µg/ml; norfloxacin – 0.38 µg/ml and ceftazidim – 0.19 µg/ml. The amplitude values ranged from 0.019 µg/ml to 512 µg/ml.

Key words: Bacteria Salmonella / Antibiotic susceptibility / Resistance of Salmonella / Poultry / Chicken salmonellosis / Duckling salmonellosis / Quails salmonellosis.