title: [Comparison of the sensitivity patterns of Staphylococci isolated from bovine udders in 1974 and 1980].
abstract: In 1974 (1973-1975) the Minimum Inhibitory Concentrations (MIC) for 693 strains of staphylococci isolated from bovine udders originating either from the national randomized mastitis survey (A) or from farms with mastitis problems (B) were determined. The antibiotics used were penicillin, nafcillin, cloxacillin, neomycin, streptomycin, lincomycin, novobiocin, rifamycin and chlortetracycline. In 1980, 370 strains from the randomized survey were examined for the same antibiotics plus cephalonium, kanamycin and quinaldofur. The proportion of strains originating from the randomized surveys showing a MIC for penicillin higher than 0.16 1. U./ml, was 35.6 per cent in 1974 and 34.1 per cent in 1980. Only minor changes were observed for the majority of other drugs studied. Despite the continued use of antimicrobial drugs in the treatment of mastitis, changes in the sensitivity of staphylococci were not observed since 1974.
mesh_terms: D000818:Animals; D000900:Anti-Bacterial Agents / Q000494:pharmacology*; D002417:Cattle; D005260:Female; D008321:Mammary Glands, Animal / Q000382:microbiology*; D008414:Mastitis, Bovine / Q000382:microbiology*; D008826:Microbial Sensitivity Tests; D013211:Staphylococcus aureus / Q000187:drug effects*; D013997:Time Factors
chemical_list: D000900:Anti-Bacterial Agents
vernacular_title: Een vergelijking van het gevoeligheidspatroon van staphylococcen geïsoleerd uit runderuiers in 1974 en 1980.