Using factor analysis in beef cattle breedingAlexey Zelenkov, Alexey Ermakov, Galina Zelenkova, Ivan Gorlov, Alexander Pakhomov, Sergei Tresnitskii and Tatyana DerezinaE3S Web Conf., 135 (2019) 01088DOI: https://doi.org/10.1051/e3sconf/201913501088