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http://dx.doi.org/10.4491/KSEE.2015.37.1.52

Life Cycle Assessment of the Domestic Dairy Cow System  

Park, Yoo Sung (Environmental Engineering Department, Ajou University)
Lee, Kun Mo (Environmental Engineering Department, Ajou University)
Yang, Seung Hak (National Institute of Animal Science, R. D. A.)
Publication Information
Journal of Korean Society of Environmental Engineers / v.37, no.1, 2015 , pp. 52-59 More about this Journal
Abstract
Recently the dairy cow industry have faced environmental issues such as eutrophication, global warming, etc. An LCA was used to quantify the environmental impact of a dairy cow system and to identify key issues contributing to the impact. The system boundary crop cultivation for feeding dairy cow, feed production, rearing and manure management (cradle-to-gate). The functional unit was 1 kg of milk (fat protein corrected milk, FPCM) produced. Rearing and cultivation of feed crops stages in system boundary to the environmental impact of the domestic dairy cow system were dominant issues. Techniques such as suppression of enteric fermentation, improvement of the energy efficiency of farm equipment and apparatuses, management of leachate generated during the crop cultivation, and development of controling the loss of fertilizer during crop production would be necessary for the improvement of the environmental key issues of the dairy cow system.
Keywords
Life cycle assessment (LCA); Dairy cow; Feed; Milk; Functional unit; Environmental impact;
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