M. I. Chelnokova
State Agricultural Academy of Velikie Luki
Russian Federation

Marina I. Chelnokova – Ph. D. (Biology), Head of the Veterinary Department of the Faculty of Animal Husbandry Technology and Agroecology

2, Lenin Ave., 2182112, Velikie Luki, Pskov Region

A. A. Chelnokov
State Agricultural Academy of Velikie Luki
Russian Federation

Andrey A. Chelnokov – D. Sc. (Biology), Professor of the Department of Animal Husbandry and Processing Technology of the Faculty of Animal Husbandry Technology and Agroecology

2, Lenin Ave., 2182112, Velikie Luki, Pskov Region

J. V. Arzhankova
State Agricultural Academy of Velikie Luki
Russian Federation

Yulia V. Arzhankova – D. Sc. (Biology), Professor of the Department of Animal Husbandry and Processing Technology of the Faculty of Animal Husbandry Technology and Agroecology

2, Lenin Ave., 2182112, Velikie Luki, Pskov Region

T. I. Skoptsova
State Agricultural Academy of Velikie Luki
Russian Federation

Tatyana I. Skoptsova – Ph. D. (Agriculture), Head of the Department of Animal Husbandry and Processing Technology of the Faculty of Animal Husbandry Technology and Agroecology

2, Lenin Ave., 2182112, Velikie Luki, Pskov Region