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Adam Bownik
Department of Biological Basis of Animal Production, Faculty of Biology, Animal Sciences and Bioeconomy, University of Life Sciences in Lublin, Akademicka 13 Str., 20-950 Lublin, Poland
Zofia Stępniewska
Department of Biochemistry and Environmental Chemistry, Faculty of Biotechnology and Environmental Sciences, John Paul II Catholic University of Lublin2, Lublin, Poland