Description
Livestock production systems will need to change in many regions of the world to meet the dual challenges of adaptation to a changing climate and reducing net greenhouse gas (GHG) emissions. The ‘Nexus project’ is exploring these options using seven case studies in eastern Australia spanning a range of production systems from semi-arid beef production in northern Australia to mixed beef and sheep production in cool temperate climates of southern Australia. Regional reference groups, made up of 4-6 local farmers and advisers, identified a series of farm systems changes that could be made to meet these challenges. Options were categorised under four themes: feedbase, animal genetics and management, management and technology, and transformational options. More options for adaptation were identified compared to options to mitigate greenhouse gas emission of sequestered carbon. Adaptation options focussed on maximising pasture production in variable climates, and having efficient and flexible animal production systems. A focus on infrastructure for water and feed storage and use was also observed. Options to reduce GHG emissions focussed on reducing feed demand and sequestering carbon in soils and trees, and limited possibilities for feed additives were noted in these pasture-based systems. Further work will explore how combinations of these options will impact production, profit and greenhouse gas emissions from these production systems in current and future climate scenarios.
Included in
Agricultural Science Commons, Agronomy and Crop Sciences Commons, Plant Biology Commons, Plant Pathology Commons, Soil Science Commons, Weed Science Commons
Exploring Profitable, Sustainable Livestock Businesses in an Increasingly Variable Climate
Livestock production systems will need to change in many regions of the world to meet the dual challenges of adaptation to a changing climate and reducing net greenhouse gas (GHG) emissions. The ‘Nexus project’ is exploring these options using seven case studies in eastern Australia spanning a range of production systems from semi-arid beef production in northern Australia to mixed beef and sheep production in cool temperate climates of southern Australia. Regional reference groups, made up of 4-6 local farmers and advisers, identified a series of farm systems changes that could be made to meet these challenges. Options were categorised under four themes: feedbase, animal genetics and management, management and technology, and transformational options. More options for adaptation were identified compared to options to mitigate greenhouse gas emission of sequestered carbon. Adaptation options focussed on maximising pasture production in variable climates, and having efficient and flexible animal production systems. A focus on infrastructure for water and feed storage and use was also observed. Options to reduce GHG emissions focussed on reducing feed demand and sequestering carbon in soils and trees, and limited possibilities for feed additives were noted in these pasture-based systems. Further work will explore how combinations of these options will impact production, profit and greenhouse gas emissions from these production systems in current and future climate scenarios.
