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Registros recuperados: 7
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Environmental Impacts and Economic Differences in grassland based Organic Dairy Farms in Germany – Modelling the Extremes Organic Eprints
Müller-Lindenlauf, Maria; Deittert, Christine; Köpke, Prof. Ulrich.
Differences in environmental impact and economic returns between intensive and low-input organic dairy production are investigated using two simplified model farms with different amounts of concentrates being fed. In four scenarios, ecological and economic effects of restricting the more intensive farm management practice beyond the existing regulations of organic farming are analysed. In the initial situation, the intensive farm has a financial advantage of about 600.00 € per ha compared with the low-input farm, while the environmental risks caused by its production system are higher in several Life Cycle Assessment (LCA) categories. We showed for the model case that limiting livestock density and using regional grown concentrates bring about considerable...
Tipo: Conference paper, poster, etc. Palavras-chave: Biodiversity and ecosystem services; Air and water emissions; Farm economics.
Ano: 2008 URL: http://orgprints.org/11815/1/11815.pdf
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Farm gate nutrient balances of organic dairy farms at different intensity levels in Germany Organic Eprints
Haas, Guido; Deittert, Christine; Köpke, Ulrich.
Organic farms are characterized as low external input agro-ecosystems. Currently, some organic dairy farmers feed higher amounts of concentrates and succulent feed, some of which is purchased, to increase the dairy performance of their cows. To assess the environ¬mental impact of this practice, nutrient balances at the farm-gate level of 26 organic dairy farms located in two different regions in Germany were compiled and analysed. The farms are characterised by different production features and feeding intensity levels (0 - 2.72 t DM of concentrates per cow and year, which was 0 - 378 g kg-1 milk) yielding 5,150 - 8,790 kg milk on average per cow and year. The area- and product- (milk) related farm-gate nutrient budgets for P and K are almost balanced...
Tipo: Journal paper Palavras-chave: Dairy cattle; Air and water emissions.
Ano: 2007 URL: http://orgprints.org/13927/1/RAFS_Abstract_DairyNPKbudgets07.pdf
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Stoffflußanalyse und Produktionseffizienz der Milchviehhaltung unterschiedlich intensiv ökologisch wirtschaftender Betriebe Organic Eprints
Haas, Guido; Deittert, Christine.
Inhalt der Untersuchung ist der Vergleich von 26 ökologisch wirtschaftenden Milchviehbetrieben in Nordrhein-Westfalen und im Baden-Württembergischen Allgäu. Die durchschnittliche Milchleistung je Kuh und Jahr von rund 6.700 kg wird zu 74% aus Grobfutter, zu 3% aus Saftfutter und zu 23% aus Kraftfutter und Cobs (nur im Allgäu) gemolken. Es werden 9,4 dt TM Kraftfutter je Kuh und Jahr bei einer Kraftfutterintensität von 135 g/kg Milch verfüttert. Aus Kraft- und Saftfutter melken die untersuchten Betriebe 1.500 kg Milch. Etwa 2/3 dieser Futtermittel werden zugekauft. Die Flächenproduktivität als Maß der Produktionseffizienz, ausgedrückt in Milchmenge je Futterfläche, beträgt knapp 7.000 kg Milch je ha. Der Futterflächenbedarf je Kuh ist 0,96 ha, wovon...
Tipo: Report Palavras-chave: Dairy cattle; Farm nutrient management; Feeding and growth; Farm economics.
Ano: 2003 URL: http://orgprints.org/5163/1/5163%2D02OE462%2Diol%2Dhaas%2D2003%2Dmilchv%2Dintensitaet.pdf
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Ökobilanz und Wirtschaftlichkeit ökologisch wirtschaftender Milchviehbetriebe mit unterschiedlicher Fütterungsintensität und Produktionsstruktur Organic Eprints
Deittert, Christine; Müller-Lindenlauf, Maria; Athmann, Miriam; Köpke, Ulrich.
Ziel des Projekts war die Analyse von Umweltwirkungen und Wirtschaftlichkeit unterschiedlicher Typen von ökologisch wirtschaftenden Milchviehbetrieben in Deutschland. Im Vordergrund standen dabei die Auswirkungen unterschiedlicher Fütterungsintensität. Es wurden sechs modellhafte Betriebstypen formuliert, um die Bandbreite der Produktionssysteme innerhalb der ökologisch wirtschaftenden Milchviehbetriebe in Deutschland abzubilden. Die Modelle basieren auf einer Praxiserhebung von 39 Betrieben über 5 Wirtschaftsjahre und wurden aus Klassen von Betrieben auf vergleichbaren Standorten und mit ähnlicher Fütterungsintensität abgeleitet. Intensive Fütterung wirkt sich in der Umweltwirkungskategorie Treibhauseffekt positiv aus, auf Ackerbaustandorten auch im...
Tipo: Report Palavras-chave: Environmental aspects; Dairy cattle; Feeding and growth; Farm economics.
Ano: 2008 URL: http://orgprints.org/13567/1/13567%2D03OE414%2Diol_uni_bonn%2D2008%2Ddeittert%2Doekobilanz_milchvieh.pdf
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Stoffflußanalyse und Produktionseffizienz der Milchviehhaltung unterschiedlich intensiv ökologisch wirtschaftender Betriebe Organic Eprints
Haas, Guido; Deittert, Christine.
Ziel ist die Erhebung der Umweltwirkung und Kenndaten der Produktion unterschiedlich intensiv ökologisch wirtschaftender Milchviehbetriebe in zwei Regionen Deutschlands. Mittels Analyse, Abschätzung und Bewertung der Produktionseffizienz und Umweltwirkung sowie prägnanter Wiedergabe der aktuellen Diskussionen und Positionen in Praxis, Beratung und Wissenschaft zur Intensität der Milchviehhaltung organisch wirtschaftender Betriebe erfolgt eine Charakterisierung der Rahmenbedingungen, die eine umweltschonende, ökonomisch tragfähige und effiziente Milchviehhaltung im ökologischen Landbau ermöglichen. Die Bearbeitung einer komplexen Themenstellung findet in engem Kontakt mit Landwirten und Experten in Beratung und Wissenschaft statt. Dazu sollen je 10...
Tipo: Project description Palavras-chave: Dairy cattle; Farm nutrient management; Feeding and growth; Farm economics.
Ano: 2003
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Umweltwirkungen unterschiedlich intensiv wirtschaftender Milchviehbetriebe im Ökologischen Landbau in NRW Organic Eprints
Müller-Lindenlauf, Maria; Deittert, Christine; Haas, Guido; Köpke, Ulrich.
Organic dairy farms with different feeding intensity and production structure differ significantly in their environmental impacts; low input organic farms achieve a higher product quality and animal welfare and cause less environmental risk for sensitive ecosystems and water quality due to lower nitrogen emissions. Intensive organic farms achieve lower greenhouse gas emissions because of lower CH4 emissions per litre milk. However, the contribution of animal husbandry to global warming potential is relatively low and the aim of low CH4 emission runs contrary to ruminant welfare. Concerning the impact categories of biodiversity, product quality and energy con-sumption, the average ecological benefit of the farms is relatively low compared to the best single...
Tipo: Conference paper, poster, etc. Palavras-chave: Food security; Food quality and human health Biodiversity and ecosystem services Health and welfare Air and water emissions.
Ano: 2007 URL: http://orgprints.org/9486/1/9486_M.%2DLindenlauf_Vortrag.pdf
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Produktionsstruktur und Kostenanalyse unterschiedlicher Typen ökologisch wirtschaftender Milchviehbetriebe Organic Eprints
Deittert, Christine; Müller-Lindenlauf, Maria; Köpke, Ulrich.
Production and business data from organic dairy farms in three German regions are being retrieved in a survey extending over several years. The farms are classified according to site conditions and feeding intensity, the latter being defined as the amount of concentrate use. In a parallel part of the project environmental impacts of the different production systems are analysed and confronted with the results obtained in view of productivity and cost effectiveness. While the variability of the business data is high and class differences do not in gen-eral prove to be statistically significant a tendency for lower production costs in sys-tems with larger herd size and more intensive feeding strategy is observed. Further investigations will separate the...
Tipo: Conference paper, poster, etc. Palavras-chave: Policy environments and social economy; Farm economics.
Ano: 2007 URL: http://orgprints.org/9464/1/9464_Deittert_Vortrag.pdf
Registros recuperados: 7
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