Institution: | 1. Institute for Animal Breeding and Genetics, University of Veterinary Medicine Hannover, Hannover, Germany;2. Clinic for Cattle, University of Veterinary Medicine Hannover, Hannover, Germany;3. Lehr‐und Forschungsgut Ruthe, University of Veterinary Medicine Hannover, Sch?ferberg 1, 31157 Ruthe/Sarstedt, Germany |