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Phage types of staphylococci isolated from the mammary glands of cows and their antibiotic resistance






Medycyna Weterynaryjna 43(5): 270-273

Phage types of staphylococci isolated from the mammary glands of cows and their antibiotic resistance

Resistance of 372 strains of Staphylococcus sp., isolated from inflammatory secretions of udders, and lysogenic properties of phages against these strains were examined. It was found that all the strains under study were sensitive to rifampicin and resistant to sulfathiazole; their sensitivity to oxytetracyclines was 94.3%, erythromycin 94.1%, neomycin 83.6%, streptomycin 64.8%, nitrofurantoin 56.5%, chloramphenicol 55.4%, penicillin 41.7%. Out of 372 strains under studies 20 phage patterns were found; they included from 1 to 13 bacteriophages and were lysogenic against 318 strains (85.5%) less sensitive to antibiotics. Fifteen patterns included from 1 to 10 lysogenic phages against sensitive strains were noted. Staphylococci partially sensitive or resistant to oxytetracyclines, nitrofurantoins and penicillins constituted a group of 22 strains and were expressed in 6 patterns including 3-6 phages. The results indicate that there is no correlation between drug-resistance of staphylococci and phage types.


Accession: 006092263



Related references

Kurek, C.; Niemczyk, K., 1987: Phage patterns of staphylococci isolated from the udders of cows and their antibiotic resistance. Disc sensitivity testing of 372 coagulase-positive strains of staphylococci isolated from subclinical mastitis cases showed 100% of the strains were resistant to sulfathiazole; 100% were sensitive to rifampicin, 94% to oxytetracycline and erythrom...

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