Authors
Ewelina Patyra
ewelina.patyra@piwet.pulawy.pl
Department of Hygiene of Animal Feedingstuffs, National Veterinary Research Institute, Pulawy, Poland
Ewelina Kowalczyk
Department of Hygiene of Animal Feedingstuffs, National Veterinary Research Institute, Pulawy, Poland
Krzysztof Kwiatek
Department of Hygiene of Animal Feedingstuffs, National Veterinary Research Institute, Pulawy, Poland