1. Department of Hygiene of Animal Feeding Stuffs, National Veterinary Research Institut in Pulawye, Partyzantow 57, 24-100 Pulawy, Poland
2. Department of Virusology, National Veterinary Research Institute in Pulawy, Partyzantow 57, 24-100 Pulawy, Poland
3. Department of Pneumonology, Oncology and Allergology, Medical University in Lublin, Jaczewskiego 8, 20-950 Lublin, Poland
4. Department of Commodity Science and Animal Raw Materials Processing, University of Life Sciences in Lublin, Akademicka 13, 20-950 Lublin, Poland