%0 Conference Paper
%A Fürmetz, A.
%A Keppler, C.
%A Knierim, U.
%A Deerberg, F.
%A Heß, J.
%D 2005
%E Heß, J
%E Rahmann, G
%F orgprints:3773
%I kassel university press GmbH, Kassel
%K Auslaufnutzung, Geflügel, Haltung
%T Legehennen in einem mobilen Stallsystem - Auslaufnutzung und Flächenzustand -  
%U http://orgprints.org/3773/
%X 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.