Authors
Eugeniusz R. Grela
Institute of Animal Nutrition and Bromatology
Dariusz Gugała
Department of Animal Ethology and Wildlife Management, Faculty of Animal Sciences and Bioeconomy, University of Life Sciences in Lublin, Lublin, Poland
Marian Flis
Department of Animal Ethology and Wildlife Management, Faculty of Animal Sciences and Bioeconomy, University of Life Sciences in Lublin, Lublin, Poland