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| Winter, T.; Linke, Stefan. |
| Open stable systems with outdoor yards are used in organic cattle farming. Until now there are no emission factors in Germany for outdoor yards of dairy barns or of cattle barns generally. The measuring of the emission potential of gaseous substances (NH3, CO2, N2O and CH4) is difficult because of the size of the outdoor yards and the direct access by climate. One possibility to measure those emissions is the use of an active sampling hood. The sampling hood provides defined laminar exhaust airflow. The product of flow rate and concentration results in the emission mass flow. In a preliminary study six cattle in calf with a total of 7.19 GV had access to an outdoor yard. This was divided virtually in a 9 x 11 à 1 m² grid. To each m² a dirt level (clean,... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Dairy cattle; Air and water emissions. |
| Ano: 2017 |
URL: http://orgprints.org/31608/1/Erfassung%20gasf%C3%B6rmiger%20Emissionen%20vom%20Auslauf%20eines.pdf |
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