TY JOUR TI STUDYING THE SOWS’ PLACENTAL TISSUE RECEPTIVITY WITH DIFFERENT ENZYMATIVE ACTIVITIES BASED ON IMMUNOHISTOCHEMICAL RESEARCH METHODS KW receptive profile of the placenta KW marker CD34 KW intrauterine period of development KW placental enzymatic activity KW sows KW immunohistochemistry JO Bulletin of KSAU AU Agarkov, A.V. AU Agarkov, N.V. AU Gluschenko, D.A. PY 2024 IS 0 PB Krasnoyarsk State Agrarian University