1. Department of Veterinary Sanitation, Faculty of Veterinary Medicine and Technology of Animal Husbandry, S. Seifullin Kazakh Agro Technical University, 010011 Astana, Republic of Kazakhstan
2. Departament of Food Hygiene and Public Health Protection, Faculty of Veterinary Medicine, Warsaw University of Life Sciences, 02-776 Warsaw, Poland
3. Department of Hygiene of Animal Feedingstuffs, National Veterinary Research Institute, 24-100 Pulawy, Poland