1. Division of Animal Sciences Department of Agricultural and Food Sciences University of Bologna Viale Fanin 46 40127 Bologna Italy
2. Associazione Nazionale Allevatori Suini via Nizza 53 00198 Roma Italy
3. Department of Biology and Ecology Faculty of Sciences University of Novi Sad Trg Dositeja Obradovica 2 21000 Novi Sad Serbia
4. Association for Breeding and Preserving of the East Balkan Swine 3 Simeon Veliki Blvd. Shumen 9700 Bulgaria
5. Servizio Ricerca per la Zootecnia Agris Sardegna Loc. Bonassai SS 291 km 18,600 07100 Sassari Italy
6. Department of Pig Breeding and Genetics Institute for Animal Husbandry 11080 Belgrade‐Zemun Serbia
7. Faculty of Agriculture University of Belgrade Nemanjina 611080 Belgrade‐Zemun Serbia
8. Department of Animal Science Faculty of Agriculture University of Zagreb Svetosimunska 25 10000 Zagreb Croatia
9. Faculty of Agrobiotechnical Sciences University of Osijek Vladimira Preloga 1 31000 Osijek Croatia
10. Kmetijski inštitut Slovenije Hacquetova ulica 17 1000 Ljubljana Slovenia
11. Departamento Mejora Genética Animal INIA Crta. de la Coruña, km. 7,528040 Madrid Spain