M. V. Sverdlova
Federal State Budget Educational Institution of Higher Education "St. Petersburg State University of Veterinary Medicine"
Russian Federation

 postgraduate student of the department of General and Private Surgery 

A. A. Stekolnikov
Federal State Budget Educational Institution of Higher Education "St. Petersburg State University of Veterinary Medicine"
Russian Federation

 Doctor of Veterinary Sciences, Professor, Academician of the Russian Academy of Sciences, Head of the Department of General and Private Surgery 

A. O. Minina
Federal State Budget Educational Institution of Higher Education "St. Petersburg State University of Veterinary Medicine"
Russian Federation

 Candidate of Veterinary Sciences, Assistant of the Department of General and Private Surgery 

A. V. Bokarev
Federal State Budget Educational Institution of Higher Education "St. Petersburg State University of Veterinary Medicine"
Russian Federation

 Doctor of Veterinary Sciences, Associate Professor of the Department of General and Private Surgery