TY JOUR TI Identification of cattle fertility haplotypes KW cattle KW Holstein breed KW fertility haplotypes KW lethal mutations KW carrier frequency KW allele frequency JO Agrarian Bulletin of the AU Stepanov, A.V. AU Bykova, O.A. AU Kostyunina, O.V. AU Zyryanova, A.A. AU Shevkunov, O.A. PY 2024 IS 24 PB Ural State Agrarian University