TY JOUR TI Determination of the content of immunoglobulin G in colostrum and a product based on it KW colostrum KW protein KW molecular weight of proteins KW immunoglobulin G KW SDS-PAGE-electrophoresis JO Dairy industry AU Kalugina, D.N. AU Yurova, E.A. PY 2023 IS 0 PB Kemerovo State University