TY JOUR TI Microstructural assessment of organs and tissues in experimental immunosuppression and correction in animals KW stress KW immunosuppression KW prevention KW adaptogen KW histology KW histochemistry KW morphometry KW feed additives JO Agrarian Bulletin of the AU Drozd, M.N. AU Usevich, V.M. PY 2022 IS 220 PB Ural State Agrarian University