1. Department of Life Sciences, University of Modena and Reggio Emilia, Via Campi 287, Modena, Italy
2. Institute of Animal Physiology, Centre of Biosciences of the Slovak Academy of Sciences, Šoltésovej 4-6, 040 01 Košice, Slovakia
3. Microbiology Department, Faculty of Medicine, School of Health Sciences, University of Ioannina, Ioannina, Greece
4. Department of Hygiene and Technology of Foods of Animals Origin, Faculty of Veterinary Medicine, School of Health Sciences, Aristotle University of Thessaloniki (AUTH), Greece