1. Department of General and Quarantine Diagnostics, Central Control and Testing Institute of Agriculture, Haniska, Slovakia
2. Institute of Animal Physiology, Slovak Academy of Sciences, Košice, Slovakia
3. Faculty of Natural Sciences, Department of Chemistry, Pavol Josef Safarik University, Kosice, Slovakia
4. Faculty of Natural Sciences, Department of Biology and Ecology, Pavol Josef Safarik University, Kosice, Slovakia