1. Institute of Veterinary Medicine, University of Agriculture in Krakow, 24/28 Mickiewicza St, 30-059 Kraków, Poland
2. Institute of Bioengineering and Animal Breeding, Siedlce University of Natural Sciences and Humanities, 14 Prusa St, 08-110 Siedlce, Poland
3. Institute of Animal Sciences, University of Agriculture in Krakow, 24/28 Mickiewicza St, 30-059 Kraków, Poland