TY JOUR TI THE CONTENT OF THE BIOLOGICALLY ACTIVE SUBSTANCES IN THE BOAR EPIDIDYMIS TESTIS IN THE AGE ASPECT KW epididymis testis KW boars KW protein KW epithelium KW sialoglycoproteins KW proteoglycans KW glycogen KW hyaluronates JO Bulletin of KSAU AU Tsydypov, R.T. PY 2015 IS PB Krasnoyarsk State Agrarian University