[Indicators of sanitary condition of water of small rivers].
D000818:Animals; D002417:Cattle; D002418:Cattle Diseases / Q000209:etiology; D010270:Parasite Egg Count; D012423:Rural Health; D014867:Water / Q000032:analysis*; D014871:Water Microbiology; D014876:Water Pollution; D014881:Water Supply
D014867:Water
Pokazateli sanitarnogo sostoianiia vody malykh rek