1. Feed-Food.Ltd., Szent Istvan University, Trakia University, Sumy National Agrarian University, Odessa National Academy of Food Technologies, 53 Dongola Road, KA7 3BN Ayr, UK, Godollo, Hungary, Stara Zagora, Bulgaria, Ukraine, Ukraine
2. All-Russian Institute of Poultry Husbandry, Sergiev Posad, Russia