title: Investigations in mastitis problem herds. 2. Effect of herd size, shed type, hygiene and management practices.
mesh_terms: D000818:Animals; D002417:Cattle; D003612:Dairying; D004202:Disinfectants; D005260:Female; D006799:Housing, Animal; D006920:Hygiene; D008321:Mammary Glands, Animal; D008414:Mastitis, Bovine / Q000453:epidemiology*; D012915:Soaps; D013997:Time Factors; D014867:Water
chemical_list: D004202:Disinfectants; D012915:Soaps; D014867:Water