Department of Veterinary Sciences, University of Turin, Turin, Italy. barbara.colitti@unito.it.Department of Veterinary Sciences, University of Turin, Turin, Italy.Department of Veterinary Sciences, University of Turin, Turin, Italy.Department of Veterinary Sciences, University of Turin, Turin, Italy.Department of Veterinary Sciences, University of Turin, Turin, Italy.Department of Veterinary Sciences, University of Turin, Turin, Italy.Istituto Zooprofilattico Sperimentale Delle Venezie, Legnaro, Italy.Istituto Zooprofilattico Sperimentale Delle Venezie, Legnaro, Italy.Department of Biomedical and Neuromotor Sciences, "Alma Mater" University of Bologna, Bologna, Italy.Department of Biomedical and Neuromotor Sciences, "Alma Mater" University of Bologna, Bologna, Italy.Department of Cardiac, Thoracic, Vascular Sciences and Public Health, University of Padova Medical School, Padua, Italy.Istituto zooprofilattico Sperimentale del Piemonte, Liguria e valle d'Aosta, Turin, Italy.Istituto zooprofilattico Sperimentale del Piemonte, Liguria e valle d'Aosta, Turin, Italy.Department of Veterinary Sciences, University of Turin, Turin, Italy.Department of Veterinary Sciences, University of Turin, Turin, Italy.