Use of phytobiotics in animal husbandry and poultryVladimir Pashtetsky, Pavel Ostapchuk, Tatiana Kuevda, Denis Zubochenko, Sergey Yemelianov and Veronika UppeE3S Web of Conf., 215 (2020) 02002DOI: https://doi.org/10.1051/e3sconf/202021502002