T.D. Deryabina - Research Scientist, All-Russian Scientific Institute of Beef Cattle Breeding, RAAS, Orenburg. E-mail: DeriabinaTatiana@yandex.ru
I.V. Gryazeva - Post-graduate Student, Department of Microbiology, Orenburg State University. E-mail: gryazevai@mail.ru
L.V. Efremova - Head of Laboratory, Department of Microbiology, Orenburg State University. E-mail: lv.efremova@yandex.ru
D.B. Kosyan - Research Scientist, All-Russian Scientific Institute of Beef Cattle Breeding, RAAS, Orenburg. E-mail: kosyan.diana@mail.ru
A.A. Kulsarin - Head of Laboratory, Department of Biophysics and Physics, Orenburg State University. E-mail: kulsarin@mail.ru