M. E. Kopchekchi
Saratov State Agrarian University named after N.I. Vavilov
Russian Federation

Marina Egorovna Kopchekchi, Candidate of Veterinary Sciences, Associate Professor of the Department of Morphology Animal Pathology and Biology

1. Theater Square, Saratov, Russian Federation 

Ya. E. Yarosh
Saratov State Agrarian University named after N.I. Vavilov
Russian Federation

Yana Evgenievna Yarosh, 3 year student of the Faculty of Veterinary Medicine, Food and Biotechnology 

1. Theater Square, Saratov, Russian Federation 

I. V. Ziruk
Saratov State Agrarian University named after N.I. Vavilov
Russian Federation

Irina Vladimirovna Ziruk, Doctor of Veterinary Sciences, Professor of the Department of Morphology, Animal Pathology and Biology 

1. Theater Square, Saratov, Russian Federation 

A. V. Egunova
Saratov State Agrarian University named after N.I. Vavilov
Russian Federation

Alla Vladimirovna Egunova, Candidate of Biological Sciences, Associate Professor of the Department of Animal Disease and Veterinary and Sanitary Expertise 

1. Theater Square, Saratov, Russian Federation