Effect of nitroethane, dimethyl-2-nitroglutarate and 2-nitro-methyl-propionate on ruminal methane production and hydrogen balance in vitro

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• 作者：Robin C. Anderson ; Janice K. Huwe ; David J. Smith ; Thaddeus B. Stanton ; Nathan A. Krueger ; Todd R. Callaway ; Thomas S. Edrington ; Roger B. Harvey ; David J. Nisbet
• 关键词：Methane-inhibitor ; Dimethyl-2-nitroglutarate ; 2-Nitro-methyl-propionate ; Nitroethane ; Rumen
• 刊名：Bioresource Technology
• 出版年：2010
• 出版时间：July 2010
• 年：2010
• 卷：101
• 期：14
• 页码：5345-5349
• 全文大小：189 K

文摘

Ruminal methanogenesis is considered a digestive inefficiency that results in the loss of 2-12 % of the host’s gross energy intake and contributes nearly 20 % to the United States annual CH₄ emissions. Presently, the effects of the known CH₄ inhibitor, nitroethane, and two synthetic nitrocompounds, dimethyl-2-nitroglutarate and 2-nitro-methyl-propionate, on ruminal CH₄ production and fermentation were evaluated in vitro. After 24 h incubation at 39°C under 100 % CO₂, ruminal fluid cultures treated with 2.97 or 11.88 μmol ml^-1 of the respective nitrocompounds produced > 92 % less CH₄ (P < 0.05) than non-treated controls. Quantification of fermentation end-products produced and H₂ balance estimates indicate that fermentation efficiencies were not compromised by the nitro-treatments.