Abstract

Ekaterina Lenchenko, Dmitryi Blumenkrants, Yury Vatnikov, Evgeny Kulikov, Van Khai, Nadezhda Sachivkina, Larisa Gnezdilova, Nikolay Sturov, Nikolay Sakhno, Vladimir Kuznetsov, Alexander Strizhakov, Tatiana Mansur.

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. agon?° 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.

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