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Published online 20 February 2008
Published in J Environ Qual 37:615-622 (2008)
DOI: 10.2134/jeq2007.0357
© 2008 American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America
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Alcohol, Volatile Fatty Acid, Phenol, and Methane Emissions from Dairy Cows and Fresh Manure

Huawei Suna, Steven L. Trabueb, Kenwood Scogginb, Wendi A. Jacksonc, Yuee Panc, Yongjing Zhaod, Irina L. Malkinac, Jacek A. Koziele and Frank M. Mitloehnerc,*

a Dep. of Biological & Agricultural Engineering, Univ. of California, Davis, 3060 Bainer Hall, One Shields Avenue, Davis, CA 95616
b United State Department of Agriculture, Agricultural Research Service, 2150 Pammel Dr. Ames, IA 50011
c Dep. of Animal Science, Univ. of California, Davis, 2151 Meyer Hall, One Shields Avenue, Davis, CA 95616
d Dep. of Mechanical and Aeronautical Engineering, Univ. of California, Davis, One Shields Avenue, Davis, CA 95616
e Dep. of Agricultural and Biosystems Engineering, Iowa State Univ., Ames, IA 50011. Disclaimer: Names are necessary to report factually on available data; however, the USDA neither guarantees nor warrants the standard of the product, and use of the name by the USDA implies no approval of the product to the exclusion of others that may be suitable


Figure 1
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  		Fig. 1. Methanol emission rates from three groups of dry and lactating cows (n = 3). SEM = pooled standard error.

 

Figure 2
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  		Fig. 2. Ethanol emission rates from three groups of dry and lactating cows (n = 3). SEM = pooled standard error.

 

Figure 3
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  		Fig. 3. Acetic, propionic, butyric, and valeric acid emission rates from three groups of dry and lactating cows (n = 3). SEM = pooled standard error.

 

Figure 4
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  		Fig. 4. 2-methylphenol, phenol, 2-ethylphenol, and 3/4 methylphenol emission rates from three groups of dry and lactating cows (n = 3). SEM = pooled standard error.

 

Figure 5
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  		Fig. 5. Methane emission rates from three groups of dry and lactating cows (n = 3). SEM = pooled standard error.

 




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