This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.
Adam Radkowski
Department of Grassland Management, Institute of Plant Production, University of Agriculture in Krakow im. Hugona Kołłątaja, al. A. Mickiewicza 21, 31-120 Kraków, Poland, phone +48 12 662 43 59
Iwona Radkowska
Department of Technology, Ecology and Economics of Animal Production, National Research Institute of Animal Production, ul. Krakowska 1, 32-083 Balice, Poland, phone +48 666 081 249
Tadeusz Lemek
Department of Chemistry and Physics, University of Agriculture in Krakow, im. Hugona Kołłątaja, ul. Balicka 122, 30-149 Kraków, Poland, phone +48 12 662 43 38