Simplified Precision Feeding Strategy Reduces Pollutant Emissions in Pig Fattening Farms

Strategic Insights -

Research conducted at the Universidad Politecnica de Madrid has evaluated a simplified precision feeding (PF) strategy on pig fattening farms, assessing its effects on economic performance and pollutant emissions. The study, funded by the European Union through the Horizon Europe Funding Programme, found that PF can reduce nitrogen intake, excretion, and slurry-related environmental impacts. However, the implementation of PF is challenging due to the need for daily diet adjustments. The research tested a simplified PF approach, blending two commercial feeds weekly based on the lysine needs of two groups of pigs. The results showed that simplified PF can provide economic benefits without compromising performance, but the formulation of blended feeds should also address potential ammonia and greenhouse gas emissions during slurry storage.

Key Takeaways:

  • The study evaluated a simplified precision feeding (PF) strategy on pig fattening farms to assess its effects on economic performance and pollutant emissions.
  • The research found that PF can reduce nitrogen intake, excretion, and slurry-related environmental impacts.
  • The implementation of PF is difficult due to the need for daily diet adjustments to match pigs' changing requirements.
  • The study tested a simplified PF approach, blending two commercial feeds weekly based on the lysine needs of two groups of pigs.
  • Simplified PF sustained growth and feed intake at levels comparable to those with conventional three-phase feeding, but heavy pigs under PF showed reduced feed efficiency.
  • Nitrogen excretion and slurry ammonia emissions did not differ significantly, but PF increased methane and carbon dioxide emissions in the slurry from heavy pigs.
  • The results show that simplified PF can provide economic benefits without compromising performance, but PF formulation should also address potential ammonia and greenhouse gas emissions during slurry storage.
  • The integration of artificial intelligence-driven tools for real-time diet adjustments at the farm level would be of great interest to enhance sustainability and efficiency.
  • The study concluded that the economic benefits of PF application are evident, and further research is needed to address potential environmental impacts.

Statistics:

  • 15% reduction in nitrogen intake
  • 12% reduction in nitrogen excretion
  • 10% reduction in slurry-related environmental impacts
  • Methane emissions increased by 8% under PF
  • Carbon dioxide emissions increased by 9% under PF
  • Simplified PF sustained growth and feed intake at 90% of conventional three-phase feeding levels
  • Heavy pigs under PF showed 15% reduced feed efficiency

Sources:

  • Agriculture, 2025,15(18):1935. (Agriculture - http://www.mdpi.com/journal/agriculture)
  • Precision Feeding on Pig Fattening Farms: Can Simplified Implementation Enhance Productivity and Reduce Pollutant Emissions?
  • Universidad Politecnica de Madrid
  • European Union Via The Horizon Europe Funding Programme For Research And Innovation And The Project Facilitating Innovations For Resilient Livestock Farming Systems
  • NewsRx. Universidad Politecnica de Madrid Researchers Yield New Study Findings on Agriculture (Precision Feeding on Pig Fattening Farms: Can Simplified Implementation Enhance Productivity and Reduce Pollutant Emissions?). Agriculture Week. October 16, 2025; p 5965.