1. Department of Ethology and Companion Animal Science, Czech University of Life Science Prague, Kamýcká 129, 165 00 Prague, Czech Republic
2. Department of Animal Science, Czech University of Life Science Prague, Kamýcká 129, 165 00 Prague, Czech Republic
3. Department of Veterinary Sciences, Czech University of Life Science Prague, Kamýcká 129, 165 00 Prague, Czech Republic
4. Department of Food Science, Czech University of Life Science Prague, Kamýcká 129, 165 00 Prague, Czech Republic