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

Danilovskaya V. – post-graduate student

410003,  Saratov region, Saratov, Theater square, 1.

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

Vasilenko I. – post-graduate student

410003,  Saratov region, Saratov, Theater square, 1.

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

Avdeenko V. – Dr. Habil. (Vet. Sci.); Professor

410003,  Saratov region, Saratov, Theater square, 1.

S. Kozlov
Saratov State Agrarian University named after N. I. Vavilov
Russian Federation

Kozlov S. – Dr. Habil. (Vet. Sci.); Associate Professor

410003,  Saratov region, Saratov, Theater square, 1.