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Photo of Bioreduction: an alternative strategy for disposing of fallen stock in the UK livestock sector

Ben Williams

Knowledge Transfer Senior Manager

AHDB Pork Knowledge Exchange

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Bioreduction: an alternative strategy for disposing of fallen stock in the UK livestock sector

Home \ Research & Innovation \ Research \ Environment \ Bioreduction: an alternative strategy for disposing of fallen stock in the UK livestock sector

Research partner: Bangor University

Sponsor: AHDB Pork

Duration: 2008 – 2011 

Aims and objectives

  • To collate information from existing scientific literature on bioreduction
  • To strengthen the case for EC legislation of bioreduction as a means of managing fallen stock
  • To identify and characterise the key processes and drivers of bioreduction 

Findings to date

  • The trial found negligible numbers of human pathogens in the waste generated from bioreduction
  • No pathogens were detected in gaseous emissions from the system
  • The system was relatively costly to install, however, running costs were relatively low
  • On a weight basis, cost of waste disposal was considerably less than costs of disposing of fallen stock via the conventional method
  • The findings indicate that in-vessel bioreduction could potentially offer livestock farmers a sustainable, practical, cost-effective, and biosecure method of containing fallen stock prior to disposal by an approved collector
  • Further work is needed prior to making any formal application to the EC for its legislative approval 

Further information

Final report  

Ceri L. Gwyther, A. Prysor Williams, Peter N. Golyshin, Gareth Edwards-Jones, David L. Jones. (2011) The environmental and biosecurity characteristics of livestock carcass disposal methods: A review. Waste Management 31 (4), 767-778

Ceri L. Gwyther, David L. Jones, Peter N. Golyshin, Gareth Edwards-Jones, A. Prysor Williams. (2012) Fate of pathogens in asimulated bioreduction system for livestock carcasses. Waste Management 32 (5), 933-938

Fate of pathogens in a simulated bioreduction system for livestock carcasses presentation

The Efficacy of Various Accelerants at Enhancing Bioreduction poster