http://orgprints.org/6461/ How should a hen run be structured so that it is used evenly by laying hens ? The aim of this study was to obtain an even use of the hen run with structures as an uneven use leads to a nutrient and heavy metal overload on the frequently used areas. In particular, we looked at the preference of hens for a certain kind and amount of structuring elements. Zeltner, Esther Hirt, Helen 9poultry animal-husbandry-and-breeding How should a hen run be structured so that it is used evenly by laying hens ? 2006-02-10 Zeltner, Esther and Hirt, Helen (2004) How should a hen run be structured so that it is used evenly by laying hens ? Proceedings of the 38th International Congress of the ISAE, Helsinki, 03.-07.08.2004. application/pdf