@inproceedings{orgprints3773,
          editor = {J He\ss and G Rahmann},
           title = {Legehennen in einem mobilen Stallsystem - Auslaufnutzung und Fl\"achenzustand -
},
          author = {A. F\"urmetz and C. Keppler and U. Knierim and F. Deerberg and J. He\ss},
       publisher = {kassel university press GmbH, Kassel},
            year = {2005},
         journal = {Ende der Nische, Beitr\"age zur 8. Wissenschaftstagung \"Okologischer Landbau},
        keywords = {Auslaufnutzung, Gefl?gel, Haltung},
             url = {http://orgprints.org/3773/},
        abstract = {The use of the free-range area by laying hens housed in a mobile system and the resulting condition of the range were investigated. The free-range was used very intensively. On an average of nine complete observation days 35 % of the birds (23 ? 44 % means per day) were outside the house. The maximum of animals in the free range was 77 %. 75 % (60 ? 95 %) of the hens outside the house stayed in an area of 20 m around the house. This led to deteriorated conditions of the range in these areas. By moving the mobile house regularly (after 2 weeks in summer and 6 weeks in winter) a destruction of the vegetation could be avoided, while after not moving the house for three months in winter a complementary seeding became necessary.
We conclude that the use of mobile systems for poultry in conjunction with a regular change of position and sufficient area per animal can avoid destruction of the vegetation despite an intensive use of the free-range all year round.
}
}