| Autor: |
Johannes, Maike, Hellwing, Anne Louise Frydendahl, Lund, Peter, Weisbjerg, Martin Riis, Hvelplund, Torben |
| Přispěvatelé: |
Kristensen, Niels Bastian |
| Jazyk: |
angličtina |
| Rok vydání: |
2010 |
| Předmět: |
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| Zdroj: |
Johannes, M, Hellwing, A L F, Lund, P, Weisbjerg, M R & Hvelplund, T 2010, Potential for reduction of methane emissions from dairy cows . in N B Kristensen (ed.), Malkekoens biologiske potentiale for reduceret udskillelse af fosfor, kvælstof og metan . Aarhus Universitet, Det Jordbrugsvidenskabelige Fakultet, Intern Rapport-Husdyrbrug, no. 22, pp. 46-56 . |
| Popis: |
Methane is a gas cows naturally produce in the rumen. However, it is also a potential greenhouse gas.Therefore, there is a certain interest from an environmental point of view to reduce methane emissions from dairy cows. Estimates from earlier studies indicate that there is a potential to reduce methane production by 10 to 25% by changing the feeding strategies.Several feedstuffs influence methane production, such as additional fat. The increase of the concentrate proportion can potentially decrease methane by decreasing the rumen degradability of the diet or by changing the rumen fermentation, while fibre and sugar enhance methane emissions. Fat can be regarded as the most promising feed additive at the moment.At AU, respiration chambers have been installed to enable methane measurements from dairy cows combined with digestibility trials, and at present studies are being conducted concerning different forms of rapeseed supplementation (cake, seeds, and oil) in order to increase the fat content as well as different forages. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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