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        <dc:title>How should a hen run be structured so that it is used evenly by laying hens ?</dc:title>
        <dc:creator>Zeltner, Esther</dc:creator>
        <dc:creator>Hirt, Helen</dc:creator>
        <dc:subject> Poultry</dc:subject>
        <dc:description>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.</dc:description>
        <dc:date>2004</dc:date>
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        <dc:identifier>/id/eprint/6461/1/Zeltner-2004-hen-run.pdf</dc:identifier>
        <dc:identifier>   Zeltner, Esther and Hirt, Helen    (2004) How should a hen run be structured so that it is used evenly by laying hens ?       Speech at:   Proceedings of the 38th International Congress of the ISAE, Helsinki, 03.-07.08.2004.          </dc:identifier></oai_dc:dc>
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