Authors
Dorota Kowalska
Department of Small Livestock Breeding, National Research Institute of Animal Production, Poland
Janusz Strychalski
Department of Fur-bearing Animal Breeding and Game Management, Faculty of Animal Bioengineering, University of Warmia and Mazury, Olsztyn, Poland
Andrzej Gugołek
Department of Fur-bearing Animal Breeding and Game Management, Faculty of Animal Bioengineering, University of Warmia and Mazury, Olsztyn, Poland