Peculiarities of a respiratory mycoplasmosis course of birds N.I. Zhenikhova, L.I. Drozdova, N.V. Sadovnikov, U.I. Kundryukova and M.A. Korch E3S Web Conf., 282 (2021) 03006 Published online: 05 July 2021 DOI: 10.1051/e3sconf/202128203006