title: Investigations in mastitis problem herds. I. Bacteriological examination.
mesh_terms: D000818:Animals; D002417:Cattle; D005260:Female; D006920:Hygiene; D008321:Mammary Glands, Animal; D008414:Mastitis, Bovine / Q000453:epidemiology / Q000382:microbiology* / Q000517:prevention & control; D008826:Microbial Sensitivity Tests; D008892:Milk / Q000382:microbiology; D010403:Penicillin Resistance; D010406:Penicillins / Q000494:pharmacology; D012915:Soaps; D013210:Staphylococcus / Q000187:drug effects / Q000302:isolation & purification; D013292:Streptococcus agalactiae / Q000187:drug effects / Q000302:isolation & purification; D013307:Streptomycin / Q000494:pharmacology; D014867:Water
chemical_list: D010406:Penicillins; D012915:Soaps; D014867:Water; D013307:Streptomycin