1. Department of Chemistry and Biodynamics of Food; Institute of Animal Reproduction and Food Research, Polish Academy of Sciences; Olsztyn Poland
2. Department of Local Physiological Regulations; Institute of Animal Reproduction and Food Research, Polish Academy of Sciences; Olsztyn Poland
3. Department of Endocrinology; Kielanowski Institute of Animal Physiology and Nutrition, Polish Academy of Sciences; Jablonna Poland