Science Publications

A mechanistic model of hydrogen

Yuancheng Wang, Peter H. Janssen, Tammy A. Lynch, Bruce van Brunt, David Pacheco, A mechanistic model of hydrogen–methanogen dynamics in the rumen, Journal of Theoretical Biology, Volume 393, 21 March 2016, Pages 75-81, ISSN 0022-5193

Existing mathematical models to estimate methane production in the rumen are based on calculation of hydrogen balances without considering the presence of methanogens. In this study, a mechanistic model of methane production is proposed that depicts the interaction between hydrogen concentration and methanogens in the rumen. Analytical results show that it meets biological expectations, namely increased fractional passage rate leads to a greater growth rate of methanogens, and a greater steady state hydrogen concentration. This model provides a basis on which to develop a more comprehensive model of methane production in the rumen that includes thermodynamics and feed fermentation pathways.

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