| Autor: |
Fürmetz, A., Keppler, C., Knierim, U., Deerberg, F., Heß, J. |
| Přispěvatelé: |
Heß, J, Rahmann, G |
| Jazyk: |
němčina |
| Rok vydání: |
2005 |
| Předmět: |
|
| Popis: |
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. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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