A. A. Buinosova
State Agrarian University of the Northern Urals
Russian Federation

Postgraduate student of the Department of Morphology, Physiology and General Pathology  

I. S. Komornikov
State Agrarian University of the Northern Urals
Russian Federation

Postgraduate student of the Department of Morphology, Physiology and General Pathology

K. A. Sidorova
State Agrarian University of the Northern Urals
Russian Federation

Doctor of Biology. N., Head of the Department of Morphology, Physiology and General Pathology 

M. V. Shchipakin
St. Petersburg State University of Veterinary Medicine
Russian Federation

Doctor of Veterinary Sciences, Professor, Head of the Department. animal Anatomy