Özet:

This study was carried out in the Sarıkamış district of Kars, on 256 cows in the lactation period. Animals were submitted to clinical examination in the direction of mastitis and the burning variables in the breast were determined by the California Mastitis Test (eMT). It was found that in 256 cows, 61 (23.8 percent) were mastitis. 79 milk samples were taken for bacteriological examination from 61 cows identified to be eMT positive. As a result of the microbiological examination, the factor was isolated in 67 (84.8%) of these samples, while no bacterial factor is isolated in 12 (15.2%) of these samples. Staphylococcus aureus was the most commonly detected bacterium with a rate of 34.3%, followed by coagulate negative staphylococcus (KNS) with a rate of 28.3%. These two groups of microorganisms except 16.4% of samples were in Streptococcus spp. and 5%. In 9 Escherchia coli was isolated. Of the isolated staphylococcus sulphurs, 14 (33.3%) S.aureus and 4 (9.5%) KNS sulphurs were found to be β-laktarnosis positive. Antibiotic resistance of staphylococcus juices: 59.5 percent penicillin, 38.1 percent amoxicillin, 7.1 percent amoxicillin-clavulonic acid, 4.8 percent cloxicillin, 11.9 percent enrofloxase resistant and sensitive to vancomia of all juices. The 13-lactam activity of the 13s was found to be an important role in resistance to the 13laktam group antibiotics.

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