%A A. F?rmetz
%A C. Keppler
%A U. Knierim
%A F. Deerberg
%A J. He?
%J Ende der Nische, Beitr?ge zur 8. Wissenschaftstagung ?kologischer Landbau
%T Legehennen in einem mobilen Stallsystem - Auslaufnutzung und Fl?chenzustand -

%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.

%K Auslaufnutzung, Gefl?gel, Haltung
%E J He?
%E G Rahmann
%D 2005
%I kassel university press GmbH, Kassel
%L orgprints3773