Affiliation: | (1) Division of Immunogenetics, Institute of Animal Breeding, School of Veterinary Medicine, University of Berne, Bremgartensr. 109a, 3012 Berne, Switzerland;(2) James A. Baker Institute for Animal Health, New York State College of Veterinary Medicine, Cornell University, 14853 Uthaca, NY, USA;(3) University of Berne, Clinic for Farm Animanls and Horses, School of Veterinary Medidcine, Berne, Switzerland |