[1]University of Hohenheim, Institute of Animal Science, Emil-Wolff Strasse 10 Stuttgart 70599, Germany;
[2]Present address: KWS SAAT SE, Grimsehlstrasse 31, Einbeck 37555, Germany;
[3]Present address: Landwirtschaftliche Untersuchungs- und Forschungsanstalt Speyer, Obere Langgasse 40, Speyer 67346, Germany;
[4]OLEAD, 11 rue Monge, Parc Industriel, Pessac 33600, France;
[5]Terres Inovia, 11 rue Monge, Parc Industriel, Pessac 33600, France;
[6]Thuringian State Institute of Agriculture, Naumburger Strasse 98, Jena 07743, Germany;