1. Institute of Animal Nutrition and Bromatology , University of Life Sciences in Lublin , Akademicka 13, 20-950 Lublin , Poland
2. Institute of Biological Basis of Animal Production , University of Life Sciences in Lublin , Akademicka 13, 20-950 Lublin , Poland
3. Department of Nutrition Physiology, National Research Institute of Animal Production , 32-083 Balice n. Kraków , Poland
4. Department of Epizootiology and Clinic of Infectious Diseases , University of Life Sciences in Lublin , 20-612 Lublin , Poland
5. State Scientific-Research Control Institute of Veterinary Medical Products and Feed Additives , Lviv , Ukraine