TY JOUR TI REPRODUCTIVE ABILITY OF BULLS SPERMOGONIA OF DIFFERENT GENESIS KW abnormal sperm KW cryopreservation of sperm KW fraction of abnormal spermatozoa KW ejaculate KW concentration of spermatozoa JO Bulletin of KSAU AU Golubkov, A.I. AU Adzhibekov, V.K. AU Golubkov, A.A. AU Mirvaliev, F.S. AU Shadrin, S.V. AU Chetvertakova, E.V. AU Popov, F.V. AU Sirotinin, E.G. PY 2018 IS PB Krasnoyarsk State Agrarian University