Paulsen, Hans Marten; Frank, Helmut; Hülsbergen, Kurt-Jürgen; Rahmann, Gerold; Schmidt, Harald and Warnecke, Sylvia (2015) Klimagase und deren Minderung bei der Milchproduktion. [Unavoidable - Green house gases and their mitigation in dairy farming.] Paper at: 13. Wissenschaftstagung Ökologischer Landbau, Hochschule für nachhaltige Entwicklung Eberswalde, 17. - 20. März 2015.
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Summary
Sources of greenhouse gas (GHG) emission of milk production were analysed on organic and conventional dairy farms from cradle to farm gate and resulted in a mean of ca. 1 kg CO2 eq kg ECM-1 independent of the farm system. When calculated according to dry matter intake of the cows, mean percentages of GHG emissions from enteric fermentation on organic or conventional farms were 31 or 42 % from the complete product related emissions from milk production from cradle to farm gate, respectively. When feed quality parameters were considered in calculation, enteric methane production increased considerably with higher fibre contents in feedstuffs. This was especially important at lower milk yields. On the 44 farms that were analysed, minimal potential GHG emissions from enteric fermentation on the herd level were 0.39 (organic farm) and 0.32 kg CO2 eq kg ECM-1 (conventional farm). This is proposed as unavoidable range for milk from intensive conventional and organic dairy production. GHG emissions from replacement animals and from feedstuff production are also part of the dairy systems. These emissions can only partly be reduced by feedstuff man-agement, manure management and technical measures, e.g. slurry cover, biogas production. Efficiency gains in all steps of the process chain by appropriate manage-ment appear to be most important for (reliably) reducing GHG emissions, e.g., by optimal feed quality and its related good milk yields and healthy and long living cows.
Summary translation
Sources of greenhouse gas (GHG) emission of milk production were analysed on organic and conventional dairy farms from cradle to farm gate and resulted in a mean of ca. 1 kg CO2 eq kg ECM-1 independent of the farm system. When calculated according to dry matter intake of the cows, mean percentages of GHG emissions from enteric fermentation on organic or conventional farms were 31 or 42 % from the complete product related emissions from milk production from cradle to farm gate, respectively. When feed quality parameters were considered in calculation, enteric methane production increased considerably with higher fibre contents in feedstuffs. This was especially important at lower milk yields. On the 44 farms that were analysed, minimal potential GHG emissions from enteric fermentation on the herd level were 0.39 (organic farm) and 0.32 kg CO2 eq kg ECM-1 (conventional farm). This is proposed as unavoidable range for milk from intensive conventional and organic dairy production. GHG emissions from replacement animals and from feedstuff production are also part of the dairy systems. These emissions can only partly be reduced by feedstuff man-agement, manure management and technical measures, e.g. slurry cover, biogas production. Efficiency gains in all steps of the process chain by appropriate manage-ment appear to be most important for (reliably) reducing GHG emissions, e.g., by optimal feed quality and its related good milk yields and healthy and long living cows.
| EPrint Type: | Conference paper, poster, etc. |
|---|---|
| Type of presentation: | Paper |
| Keywords: | Treibhausgase, Milchvieh, unvermeidliche Emissionen, Effizienz |
| Agrovoc keywords: | Language Value URI English greenhouse gases UNSPECIFIED English dairy UNSPECIFIED English efficiency UNSPECIFIED English mitigation UNSPECIFIED English unavoidable losses UNSPECIFIED |
| Subjects: | Animal husbandry Animal husbandry > Feeding and growth Environmental aspects > Air and water emissions Environmental aspects |
| Research affiliation: | Germany > Federal Research Institute for Rural Areas, Forestry and Fisheries - VTI Germany > Federal Research Institute for Rural Areas, Forestry and Fisheries - VTI > Institute of Organic Farming - OEL International Conferences > 2015: Scientific Conference of the German Speaking Countries > Animal husbandry |
| ISBN: | 978-3-89574-885-1 |
| DOI: | 27127 |
| Related Links: | http://www.wissenschaftstagung.de/ |
| Deposited By: | Paulsen, Dr. Hans Marten |
| ID Code: | 27127 |
| Deposited On: | 22 Jun 2015 14:35 |
| Last Modified: | 14 Jan 2016 11:31 |
| Document Language: | German/Deutsch |
| Status: | Published |
| Refereed: | Peer-reviewed and accepted |
| Additional Publishing Information: | Dieser Beitrag ist im Tagungsband der 13. Wissenschaftstagung erschienen. Häring, A.M., Hörning, B., Hoffmann-Bahnsen, R., Luley, H., Luthardt, V., Pape, J., Trei, G. (Hrsg.)(2015): Am Mut hängt der Erfolg - Rückblicke und Ausblicke auf die ökologische Landbewirtschaftung. Beiträge zur 13. Wissenschaftstagung Ökologischer Landbau, Hochschule für nachhaltige Entwicklung Eberswalde, 17.-20. März 2015 Verlag Dr. Köster, Berlin |
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