1. Department of Veterinary Prevention and Feed Hygiene, Faculty of Veterinary Medicine, University of Warmia and Mazury in Olsztyn, 10-718 Olsztyn, Poland
2. Department of Agroecosystems and Horticulture, Faculty of Agriculture and Forestry, University of Warmia and Mazury in Olsztyn, 10-719 Olsztyn, Poland
3. Department of Public Health, Faculty of Health Sciences, Collegium Medicum, University of Warmia and Mazury in Olsztyn, 10-082 Olsztyn, Poland
4. Department of Poultry Breeding, National Research Institute of Animal Production, 32-083 Balice, Poland
5. Department of Meat Technology and Chemistry, University of Warmia and Mazury in Olsztyn, 10-719 Olsztyn, Poland
6. SBP Feeds Ltd., Piastowska 38A, 14-240 Susz, Poland