TY JOUR TI DEVELOPMENT OF ENERGY-EFFICIENT FEED GRINDER KW grinder KW feed KW specific energy consumption KW particle size distribution KW throughput KW carrots KW start-stop JO Vestnik of Kazan State Agrarian University AU Ayugin, N.P. AU Yakovlev, S.A. AU Isaev, Y.M. AU Kalashnikov, I.A. PY 2026 IS 20 PB Kazan state agrarian University