Authors
Jadwiga Topczewska
Department of Animal Production and Poultry Products Evaluation, Faculty of Biology and Agriculture, University of Rzeszow, Zelwerowicza 4, 35-601, Rzeszów, Poland
Wanda Krupa
Department of Ethology and Technological Basis of Animal Production, Faculty of Biology, Animal Sciences and Bioeconomy, University of Life Sciences in Lublin, Akademicka 13, 20-950, Lublin, Poland