Authors
Natalia Styś-Fijoł
Department of Poultry Diseases, National Veterinary Research Institute, 24-100, Pulawy, Poland
Wojciech Kozdruń
Department of Poultry Diseases, National Veterinary Research Institute, 24-100, Pulawy, Poland
Hanna Czekaj
Department of Poultry Diseases, National Veterinary Research Institute, 24-100, Pulawy, Poland