TY JOUR TI EFFECTIVITY OF SYSTEMATIC SPRAYING CATTLE WITH DELTSID AGAINST BLOOD-SUCKING MIDGES ON THE PASTURE KW blood-sucking lice KW cattle KW deltsid KW spraying KW pasture KW entomological efficiency KW milk production JO Bulletin of KSAU AU Fyodorova, O.A. AU Khlyzova, T.A. PY 2016 IS PB Krasnoyarsk State Agrarian University