1. Department of Agrotechnology and Agribusiness, Faculty of Agriculture and Forestry, University of Warmia and Mazury in Olsztyn, 10-719 Olsztyn, Poland
2. Department of Animal Science, Faculty of Agricultural Sciences, Pennsylvania State University, University Park, PA 16802, USA
3. Department of Logistics, Institute of Economics and Finance, Warsaw University of Life Sciences, 02-787 Warsaw, Poland