TY JOUR TI BIOCHEMICAL BLOOD PARAMETERS IN BULLS FED NCG-N-CARBAMIL GLUTAMATE KW fattening bulls KW blood serum KW total protein KW creatinine KW urea JO SCIENTIFIC NOTES KAZAN BAUMAN ACADEMY OF VETERINARY MEDICINE AU Tsygankov, E.M. AU Menkova, A.A. PY 2026 IS 262 PB Kazan state agrarian University