title: [Addition of urea to cattle rations (an aid for the young specialist)].
mesh_terms: D000821:Animal Feed; D000818:Animals; D002417:Cattle; D014508:Urea
chemical_list: D014508:Urea
vernacular_title: Dobavlenie mocheviny v ratsion skota (v pomoshch' molodym spetsialistam.