Feed management decisions are critical for ruminant production systems and also strongly affect agricultural greenhouse
gas (GHG) emissions. Although ruminant management and production conditions differ between countries, a transnational approach is critical for extending knowledge of ruminant dietary effects on greenhouse gas (GHG) emissions and sustainable production, and improving GHG accounting methodologies.
CEDERS aims to align national agricultural GHG inventory and mitigation research across an international consortium of 9 countries (8 partner countries plus New Zealand). Its main goal is to delineate dietary effects on various on-farm GHG sources and their trade-offs, at the farm and national scales.
The objectives of CEDERS are to:
By expanding on a database originating from FACCE-JPI Global Network Relationships the effect of dietary mitigation strategies on the emissions of enteric methane emission and from excreta/manure was evaluated.
Further, an integral evaluation of the main greenhouse gas emissions (livestock, manure, soil/crop) by use of a modelling platform of sophisticated process-oriented models for a wide range of well-monitored farm cases.
Furthermore, the model for enteric methane (the Dutch Tier 3) is compared with current inventory methodology in a selection of partner countries.
Simultaneous experimental testing (at lab, cow and farm scale) to evaluate trade-offs and synergies between these two emissions sources (factors studied dietary nitrogen, starch and lipid content, grass/maize exchange) indicates strong trade-offs between enteric and excreta/manure emissions are possible, but these depend on the basal diet and dietary measures taken. Instead of generic adoption of the mitigating effect on enteric methane, careful diet formulation is needed to prevent such trade-offs and achieve a maximum synergistic of reduced nitrogen emission. These CEDERS results are reflected against current approaches in inventory, accounting/C footprinting and IPCC guidelines. The aim is to consolidate this in 2020/2021 into recommendations for the stakeholders involved in these approaches.
*At the time of the proposal. Please consider this data as an accurate estimate; it may vary during the project’s lifespan.
Total costs include in kind contribution by grant holders and can therefore be higher than the total requested funding.