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Improved representation of cattle herd dynamics for bio-physical modelling of pathways to a climate neutral land sector

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  • Henn, Daniel
  • Humphreys, James
  • Duffy, Colm
  • Gibbons, James
  • Styles, David

Abstract

Livestock production contributes to food security and livelihood improvement globally but places a significant burden on the environment. In Ireland, an ongoing transition towards highly profitable dairy production after the phasing out of EU milk quotas has changed the composition of the national cattle herd with more dairy and fewer beef cows. This shift impacts greenhouse gas (GHG) accounting across different cattle cohorts, e.g. increasing the proportion of calves from the dairy herd. Dairy x beef crossbreeds (DxB) increasingly contribute to national beef output, leveraging larger average daily liveweight gain (ADG) traits from beef breeding bulls.

Suggested Citation

  • Henn, Daniel & Humphreys, James & Duffy, Colm & Gibbons, James & Styles, David, 2023. "Improved representation of cattle herd dynamics for bio-physical modelling of pathways to a climate neutral land sector," Agricultural Systems, Elsevier, vol. 212(C).
    • Handle: RePEc:eee:agisys:v:212:y:2023:i:c:s0308521x23001774
    DOI: 10.1016/j.agsy.2023.103772
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    References listed on IDEAS

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    1. Murphy, Brian & Crosson, Paul & Kelly, Alan K. & Prendiville, Robert, 2017. "An economic and greenhouse gas emissions evaluation of pasture-based dairy calf-to-beef production systems," Agricultural Systems, Elsevier, vol. 154(C), pages 124-132.
    2. Joeri Rogelj & Oliver Geden & Annette Cowie & Andy Reisinger, 2021. "Net-zero emissions targets are vague: three ways to fix," Nature, Nature, vol. 591(7850), pages 365-368, March.
    3. Colm Duffy & Remi Prudhomme & Brian Duffy & James Gibbons & Pietro P. M. Iannetta & Cathal O’Donoghue & Mary Ryan & David Styles, 2022. "Randomized national land management strategies for net-zero emissions," Nature Sustainability, Nature, vol. 5(11), pages 973-980, November.
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