Özet:

This study aims to isolate and identify the factors that cause subclinical mastitis in cows located in the district of Diyarbakır and identify the antibiotics that are effective on them. A total of 300 cows were tested for mastitis with the California Mastitis Test (CMT). In the microbiological study of a total of 268 milk samples received from 134 CMT positive, 29 (%10,82) of the samples were unable to reproduce any bacteria, while 239 (%89.18) of the milk samples 66 (%24,63) Staphylococcus aureus, 30 (%11,19) Staphylococcus epidermidis, 20 (%7,46) Staphylococcus haemoliticus, 27 (%10,07) Streptococcus agalactiae, 10 (%3,73) Streptococcus dysgalactiae, 5 (%1,87) Streptococcus uberis, 10 (%3,73) Bacillus spp. , 23 (%8,58) Escherichia coli, 10 (%3,73) Enterobacter cloacae, 10 (%3,73) Enterobacter faecalis, 5 (%1,87) Klebsiella pneumonia, 5 (%1,87) Pseudomonas aeruginosa, 8(%2,99) Diplocococus spp., 10 (%3,73) Candida spp. Isolated . Antibiotic tests against isolated and identified bacteria found that the antibiotics that were effective were Cefoperazone-Sulbactam, Cefoxitin and Ampicillin.

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