Affiliation: | 1. Institute of Crop Science, University of Hohenheim, Fruwirthstr. 23, 70593 Stuttgart, Germany;2. Institute of Animal Science, University of Hohenheim, Garbenstr. 17, 70593 Stuttgart, Germany;3. Institute of Animal Welfare and Animal Husbandry, Friedrich-Loeffler-Institut, Doernbergstr. 25–27, 29223 Celle, Germany |