TY JOUR TI QUALITATIVE AND QUANTITATIVE CHARACTERISTICS OF NUTRITION OF BEAVER (CASTOR FIBER) INHABITING THE RIVER BASIN OJA SHUSHENSKY DISTRICT KRASNOYARSK TERRITORY KW beavers KW Oja river KW food JO Bulletin of KSAU AU Baksheeva, S.S. AU Antonovich, A.A. PY 2015 IS PB Krasnoyarsk State Agrarian University