Relationship of nitrate levels in water and livestock feeds to herd health problems on 25 Kansas farms.
D000821:Animal Feed / Q000032:analysis*; D000818:Animals; D002417:Cattle; D002418:Cattle Diseases / Q000139:chemically induced*; D009566:Nitrates / Q000032:analysis / Q000506:poisoning*; D014867:Water / Q000032:analysis*
D009566:Nitrates; D014867:Water