title: [Sensitivity of agents of mastitis to various antibiotics].
abstract: Studied was the sensitivity to antibiotics of a total of 328 strains of mastitis-causative agents, employing the agar-diffusion method. Staphylococcus aureus proved most sensitive to cephacetril (100%), gentamycin (85.3%), and erythromycin (75.2%). Of the pathogenic streptococci Str. agalactiae was most sensitive to cephacetril (100%), chloramphenicol (100%), and tetracycline (92,8%), while Str. uberis and Str. dysgalactiae ranked second - cephacetril (88,2%), tetracycline (77.4%), and gentamycin (74.5%). Coliform bacteria were found to be most sensitive to streptomycin (75-77%), gentamycin (69-74%), and chloramphenicol (66-73%), and completely resistant to penicillin and ampicillin. Corynebacteria were sensitive to most of the antibiotics - cephacetril (100%), chloramphenicol (83.8%), erythromycin (78.3%), gentamycin (75.6%), and ampicillin (72.9%). Usually, the mastitis causative agents showed polyresistance at one and the same time mostly to three (36.3%) and four (19%) antibiotics.
mesh_terms: D000818:Animals; D000900:Anti-Bacterial Agents / Q000494:pharmacology* / Q000627:therapeutic use; D001419:Bacteria / Q000187:drug effects*; D002417:Cattle; D003352:Corynebacterium / Q000187:drug effects; D004755:Enterobacteriaceae / Q000187:drug effects; D004926:Escherichia coli / Q000187:drug effects; D005260:Female; D008414:Mastitis, Bovine / Q000188:drug therapy / Q000382:microbiology*; D008826:Microbial Sensitivity Tests; D013211:Staphylococcus aureus / Q000187:drug effects; D013291:Streptococcus / Q000187:drug effects
chemical_list: D000900:Anti-Bacterial Agents
vernacular_title: Prouchvaniia vurkhu chuvstvitelnostta na mastitnite prichiniteli kum niakoi antibiotitsi.