Alternate H2 Sinks for reducing rumen methanogenesis

Malik, P. K., Bhatta, Raghavendra, Gagen, Emma J., Sejian, Veerasamy, Soren, N. M. and Prasad, Cadaba S. (2015). Alternate H2 Sinks for reducing rumen methanogenesis. In Veerasamy Sejian, John Gaughan, Lance Baumgard and Cadaba Prasad (Ed.), Climate change impact on livestock: adaptation and mitigation (pp. 303-320) New Delhi, India: Springer. doi:10.1007/978-81-322-2265-1_19


Author Malik, P. K.
Bhatta, Raghavendra
Gagen, Emma J.
Sejian, Veerasamy
Soren, N. M.
Prasad, Cadaba S.
Title of chapter Alternate H2 Sinks for reducing rumen methanogenesis
Formatted title
Alternate H2 Sinks for reducing rumen methanogenesis
Title of book Climate change impact on livestock: adaptation and mitigation
Place of Publication New Delhi, India
Publisher Springer
Publication Year 2015
Sub-type Critical review of research, literature review, critical commentary
DOI 10.1007/978-81-322-2265-1_19
Open Access Status Not Open Access
Year available 2015
ISBN 9788132222644
9788132222651
Editor Veerasamy Sejian
John Gaughan
Lance Baumgard
Cadaba Prasad
Chapter number 19
Start page 303
End page 320
Total pages 17
Total chapters 27
Language eng
Formatted Abstract/Summary
Greenhouse gas (GHG) emissions from livestock is about 7,516 million metric tons CO2eq. year−1 and has multiple components that include enteric methane emissions, methane and nitrous oxide emissions from manure and carbon dioxide emissions associated with feed production and grazing. An uninterruptedly increasing concentration (155 % more than preindustrial level), a comparatively high global warming potential and a short half-life of methane make it a bit more important than any other GHG in the control of global warming and climate change. Enteric methane mitigation is not only important from a global warming point but also for saving animal dietary energy which is otherwise lost in the form of methane. Due to the central regulatory role of H2, it is generally referred as the currency of fermentation and most of the mitigation strategies revolve around its production or disposal in such a way as to ensure the conservation of energy into desirable end products. In the chapter, an attempt is made to address the prospects of some emerging approaches to redirect metabolic H2 away from methanogenesis and serve as potential alternate sink for H2 in the rumen for conserving energy. The prospects of alternate sinks, for instance, sulphate and nitrate reduction and reductive acetogenesis and propionogenesis, are debated in the chapter along with the anticipated benefits that can be achieved from the practically feasible 20 % enteric methane reduction.
Keyword Alternate sinks
Enteric CH4 mitigation
Reductive acetogenesis
Sulphate reduction
Q-Index Code B1
Q-Index Status Provisional Code
Institutional Status UQ
Additional Notes http://link.springer.com/chapter/10.1007/978-81-322-2265-1_19

Document type: Book Chapter
Collection: School of Earth Sciences Publications
 
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Created: Tue, 09 Aug 2016, 10:57:46 EST by Emma Gagen on behalf of School of Earth Sciences