Dr Matthias Hess has been spearheading the assessment of compounds and feed additives for their impact on cattle methane emissions in the United States. Matthias is a microbiologist in the department of animal science at UC Davis where he has spent the last 8 years looking into the ruminant microbiome to better understanding how these different microbes breakdown complex plant materials into smaller molecules that can be utilized by the animal.
Matthias current work is leading research focused on understanding the biochemistry of how these microbes convert plant materials into small molecules that can be utilized by the animal. A huge part of his work is looking at the production of undesirable metabolites and especially methane with the aim of finding solutions to how methane emissions can be reduced.
The exciting news is that his team is using new techniques including DNA, RNA, and protein analytics to understand the microbial processes in the rumen on a molecular level. This is leading to a much better understanding of not just the species of bacteria, archaea, and also fungi in the rumen, but more importantly how they interact, what activates these microbes, and the intracellular communications that control what genes are switched on at any point in time.
Ultimately, as methane production is an energy inefficiency within the ruminant digestive system Matthias thinks solutions that solve the methane problem will also increase protein production. That said, because of the complexity if the rumen microbiome it is highly probable that there will be different solutions for not different production systems, grazing and fed animals, and also for different environments.
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