1. Faculty of Bioengineering of Animal Resources, University of Life Sciences King Michael I from Timisoara, 300645 Timisoara, Romania
2. Bacteriology Branch, Veterinary Sciences Division, Agri-Food and Biosciences Institute, Belfast BT4 3SD, UK
3. Faculty of Management and Rural Tourism, University of Life Sciences King Mihai I from Timisoara, 300645 Timisoara, Romania
4. Academy of Romanian Scientists, Ilfov Street, No. 3, 050044 Bucharest, Romania