How should a hen run be structured so that it is used evenly by laying hens ?EstherZeltnerauthorHelenHirtauthorThe 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. Poultry2004Conference paper, poster, etc.