Galbas, M., Selwet, M., Koczorowski, M., & Porzucek, F. (2015). Impact of rearing system of Rosa breed laying hens on occurrence and antibiotic resistance hens on occurrence and antibiotic resistance. Biotechnology and Food Science, 79(1), 3-8. https://doi.org/10.34658/bfs.2015.79.1.9-22