© 2014 Michał Gesek, Joanna Welenc, Zofia Tylicka, Iwona Otrocka-Domagała, Katarzyna Paździor, Agnieszka Rotkiewicz, published by National Veterinary Research Institute in Pulawy
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.