00769naa#a2200193#i#450# EN\URAL'SKIY GOSUDARSTVENNYY AGRARNYY UNIVERSITET\bibl\73929 20250717221746.4 1997-4868 20240201b2024####ek#y0engy0150####ca RU The composition of the microflora of the digestive system chyme and dairy productivity of cows during the milking period under the influence of a complex biological preparation Journal article Ekaterinburg Ural State Agrarian University 2024 12 с. Journal article local Yyldyrym Elena Aleksandrovna Ilina Larisa A. Kalitkina Kseniya Andreevna Dubrovin Andrey Valer'evich usau.editorum.ru