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Decoupling Livestock from Land Use through Industrial Feed Production Pathways
Ilje Pikaar1,2, Silvio Matassa3,4, Benjamin L Bodirsky5
1School of Civil Engineering , The University of Queensland , Brisbane , Queensland 4072 , Australia.
Environmental Science & Technology
|June 21, 2018
Summary
Industrial microbial proteins (MP) offer a sustainable alternative to conventional animal feed. By 2050, MP can significantly reduce agricultural land use, nitrogen pollution, and greenhouse gas emissions.
Area of Science:
- Agricultural Science
- Environmental Science
- Biotechnology
Background:
- Growing global protein demand strains resources, leading to environmental issues like land expansion and pollution from conventional animal feed.
- Cropland-based animal feed production contributes significantly to nitrogen pollution and greenhouse gas emissions.
Purpose of the Study:
- To analyze the long-term potential of industrial microbial protein (MP) production as an alternative to conventional animal feed.
- To quantify the environmental benefits of MP adoption in the agro-food system.
Main Methods:
- Modeling the potential of microbial protein (MP) to replace crop-based animal feed protein demand.
- Scenario analysis based on socio-economic development and different MP production pathways.
Main Results:
- By 2050, MP could replace 10-19% of conventional animal feed protein demand.
- This shift could decrease global cropland area by 6%, nitrogen losses by 8%, and agricultural greenhouse gas emissions by 7%.
Conclusions:
- Industrial microbial protein production presents a viable and accessible solution for sustainable animal feed.
- MP technology can drive significant structural changes in the agro-food system, balancing protein demand with environmental protection.
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