Control of Ecotoxicants Content in Feed Additives and Veterinary Pharmacological ProductsGeorgiy Aleksandrovich Zhorov, Lyubov Lvovna Zakharova, Vasiliy Ivanovich Dorozhkin and Elizaveta Arkadievna DenisovaBIO Web Conf., 37 (2021) 00041DOI: https://doi.org/10.1051/bioconf/20213700041