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.