TY JOUR TI REPRODUCTION OF THE MUSKRAT ( ONDATRA ZIBETHICUS LINNAEUS, 1766) IN KHAKASSIA KW muskrat female KW embryo KW reproductive cycle KW uterus horns KW reproduction KW placenta spots JO Bulletin of KSAU AU Sokolov, G.A. AU Kalinina, T.L. PY 2012 IS PB Krasnoyarsk State Agrarian University