1. Black Slavonian Pig Breeders Association “Fajferica”, Đakovo, Croatia
2. Ecoland Herbs&Spices, Wolpertshausen, Germany
3. Faculty of Agrobiotechnical Sciences Osijek, Josip Juraj Strossmayer University of Osijek, Osijek, Croatia
4. Ministry of Agriculture, Zagreb, Croatia
5. Faculty of Veterinary Medicine, University of Zagreb, Zagreb, Croatia
6. Ministry of Regional Development and EU Funds, Zagreb, Craotia
7. Faculty of Agriculture University of Zagreb, Zagreb, Croatia