1. Department of Botany and Genetics; Constantine the Philosopher University in Nitra; Nitra Slovakia
2. Department of Animal Physiology; Slovak University of Agriculture in Nitra; Nitra Slovakia
3. Institute of Farm Animal Genetics and Reproduction; Research Institute for Animal Production in Nitra; National Agricultural and Food Centre; Lužianky Slovakia
4. Research Centre AgroBioTech; Slovak University of Agriculture in Nitra; Nitra Slovakia
5. Department of Biochemistry and Biotechnology; Slovak University of Agriculture in Nitra; Nitra Slovakia