Polymorphism of the glutathioneperoxidase-1 gene (GPX-1 g. 189 T/C) and biochemical parameters of the blood serum of Holstein cattleNatalia Safina, Shamil Shakirov, Elza Gaynutdinova, Ekaterina Mukhanina, Lilia Shayakhmetova, Elmira Bagavieva, Zilya Fattakhova, Tahir Akhmetov, Lenar Zagidullin and Ravil HaertdinovE3S Web of Conf., 462 (2023) 01018DOI: https://doi.org/10.1051/e3sconf/202346201018