TY JOUR TI The intensity of changes in the activity of enzymes in the tissues of the colon in piglets in different phases of postnatal ontogenesis KW systemogenesis KW nutritional phases KW postnatal period KW functional system KW enzymes KW aspartate aminotransferase KW alanine aminotransferase KW γ-glutamyltransferase KW α-amylase KW alkaline and acid phosphatase KW cecum KW piglets. JO Agrarian Bulletin of the AU Terenteva, M.G. AU Mardareva, N.V. PY 2020 IS 194 PB Ural State Agrarian University