University of Veterinary Medicine, Vienna - Institute of Animal Breeding and Genetics, University of Veterinary Medicine, Vienna - Institute of Animal Breeding and Genetics, University of Veterinary Medicine, Vienna - Institute of Animal Breeding and Genetics, Medical University of Vienna - Clinical Institute for Pathology, University of Veterinary Medicine, Vienna - Institute of Animal Breeding and Genetics, University of Veterinary Medicine, Vienna - Institute of Animal Breeding and Genetics, University of Veterinary Medicine, Vienna - Institute of Animal Breeding and Genetics, University of Veterinary Medicine, Vienna - Institute of Animal Breeding and Genetics, University of Veterinary Medicine, Vienna - Institute of Animal Breeding and Genetics, University of Veterinary Medicine, Vienna - Institute of Animal Breeding and Genetics, University of Rijeka - Department of Histology and Embryology, University of Rijeka - Department of Histology and Embryology, Maastricht University - METRO Institute and University of Veterinary Medicine, Vienna - Institute of Animal Breeding and Genetics