1. Department of Technique and Food Development, Faculty of Human Nutrition and Consumer Sciences; Warsaw University of Life Sciences, Nowoursynowska 159c Street, 32; Warsaw 02-776 Poland
2. Department of Animal Improvement; Institute of Genetics and Animal Breeding of the Polish Academy of Sciences, Postępu 36A, Magdalenka 05-552; Poland
3. Department of Comparative Biomedicine and Food Science; University of Padova Legrano; Padova Italy