METH-ABATE: Development and validation of novel technologies to reduce methane emissions from Irish agricultural systems

Background: Agriculture is the single largest contributor (~30%) to overall Greenhouse Gas (GHG) emissions in Ireland accounting for the majority of methane emissions produced primarily due to ruminant livestock production. Methane, a GHG 28 times more potent than carbon dioxide, is released as a by-product of rumen microbial fermentation and from stored manure and slurry on farm. Under EU legislation, the Republic of Ireland has committed to reduce GHG emissions by 40% by 2030, compared to 2005 levels. Hence there is an urgent requirement for innovative strategies to reduce methane emissions from agriculture in Ireland. The overall aim of this multidisciplinary project is to develop novel farm-ready technologies to reduce methane emissions from ruminant fermentation and stored manure and slurry.

Project Aim: Specifically, in this PhD project we will investigate a number of promising feed additives, including 3-NOP, seaweed products, halides and oils to mitigate methane emissions from ruminant production, while simultaneously monitoring their effects on animal productivity using both in vitro and animal based in vivo trials. For pasture-based delivery, technologies for encapsulation to ensure slow release delivery will developed for promising additives. The effect of these technologies on the nutritional and toxicological composition of meat and milk will be investigated to confirm consumer safety of ruminant products. Sequencing and bioinformatics technologies will also allow a fundamental understanding of mechanism of action of these interventions in the rumen of animals fed the additives.