1 | National Research Institute of Animal Production, Department of Nutrition and Feed Science,
Krakowska 1, 32-083 Balice, Poland |
2 | Ecopig, 42-510 Wojkowice Kościelne 28, Poland |
3 | Agricultural University of Cracow, Department of Anatomy,
Al. Mickiewicza 24/28, 30-059 Kraków, Poland |
4 | Agricultural University of Cracow, Department of Animal Products Technology,
Balicka 122, 31-149 Kraków, Poland |