Authors
Małgorzata Świątkiewicz
malgorzata.swiatkiewicz@izoo.krakow.pl
Department of Nutrition Physiology, National Research Institute of Animal Production, Kraków, Poland
Jerzy Księżak
Department of Forage Crop Production, Institute of Soil Science and Plant Cultivation – State Research Institute, Puławy, Poland
Ewa Hanczakowska
Department of Nutrition Physiology, National Research Institute of Animal Production, Kraków, Poland