Deerberg, Friedhelm (freier Berater) and Heß, Jürgen (2017) Öko-Legehennen: Ressourceneffizienz und Umweltschutz versus Auslaufmanagement und Flächenbeimessung. Poster at: 14. Wissenschaftstagung Ökologischer Landbau, Campus Weihenstephan, Freising-Weihenstephan, 07.-10. März 2017.
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Summary
The minimal pasture size of 4 m² per hen for free range laying hens proves to be critical when seen under aspects of environmental protection. Taking a flock size of 1.000 laying hens and a pasture size of 4 m² per animal as a basis and assuming that only 10 % of the annual droppings are excreted on the pasture land the nitrogen input would be as high as 226 kg/ha and year.
| EPrint Type: | Conference paper, poster, etc. |
|---|---|
| Type of presentation: | Poster |
| Keywords: | free range layers, accumulation of nitrogen, pasture size assessment, Legehennen, Auslaufmanagement, Umweltschutz |
| Subjects: | Environmental aspects > Air and water emissions Animal husbandry > Health and welfare Animal husbandry > Production systems > Poultry |
| Research affiliation: | International Conferences > 2017: Scientific Conference German Speaking Countries > Animal husbandry Germany > University of Kassel > Department of Organic Farming and Cropping |
| ISBN: | 978-3-89574-925-4 |
| Deposited By: | Hasreiter, Anna |
| ID Code: | 31697 |
| Deposited On: | 04 Jul 2017 17:24 |
| Last Modified: | 04 Jul 2017 17:24 |
| Document Language: | German/Deutsch |
| Status: | Published |
| Refereed: | Peer-reviewed and accepted |
| Additional Publishing Information: | Dieser Beitrag ist im Tagungsband der 14. Wissenschaftstagung erschienen. S. Wolfrum, H. Heuwinkel, H.J. Reents, u.a. (Hrsg.) (2017): Ökologischen Landbau weiterdenken - Verantwortung übernehmen - Vertrauen stärken. Beiträge der 14. Wissenschaftstagung Ökologischer Landbau, Freising-Weihenstephan, 7.-10. März 2017 Verlag Dr. Köster, Berlin |
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