1. Department of Animal Breeding and Production, Faculty of Animal Science, Warsaw University of Life Sciences - SGGW, Warsaw, Poland
2. Department of Food Engineering and Process Management, Faculty of Food Sciences,Warsaw University of Life Sciences, Warsaw, Poland
3. Department of Animal Improvement, Institute of Genetics and Animal Breeding of the Polish Academy of Sciences, Magdalenka, Poland
4. Laboratory for Animal Nutrition and Animal Product Quality (LANUPRO), Department of Animal Production, Faculty of Bioscience Engineering, Ghent University, Melle, Belgium