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A method using sustainability indicators to compare conventional and animal-friendly egg production systems
I J M de Boer1, A M G Cornelissen
1Animal Production Systems Group, Wageningen Institute of Animal Sciences, Wageningen University and Research Center, The Netherlands. Imke.deBoer@dps.vh.wau.nl
Poultry Science
|March 7, 2002
Summary
A new method compares egg production systems for sustainability. Conventional battery cages showed the least negative impact, while aviary systems offer a better animal-friendly alternative needing economic and farmer welfare improvements.
Area of Science:
- Agricultural Science
- Environmental Science
- Sustainability Studies
Background:
- Egg production systems face increasing scrutiny regarding their environmental and social impacts.
- Sustainable development requires balancing economic, environmental, and social factors in agricultural practices.
- Comparing different egg production systems is crucial for informed decision-making.
Purpose of the Study:
- To present a novel three-phase framework for evaluating the contribution of egg production systems to sustainable development.
- To demonstrate the application of this method using data from conventional battery cage, deep-litter, and aviary systems in the Netherlands.
- To identify key sustainability indicators for egg production.
Main Methods:
- A three-phase framework: issue identification, indicator translation, and contribution assessment.
- Literature review and expert consultation for phases 1 and 2.
- Graphical and numerical comparisons of sustainability indicators (economic performance, ammonia emission, energy use, hen welfare, farmer welfare, egg quality) for Phase 3.
Main Results:
- The battery cage system exhibited the least negative contribution to sustainable development when all indicators were equally weighted.
- The aviary system was identified as a superior animal-friendly alternative to the deep-litter system.
- The aviary system requires enhancements in economic performance and farmer welfare.
Conclusions:
- The developed method provides a structured approach to compare egg production systems for sustainability.
- Tentative conclusions suggest battery cages have the lowest negative impact, but aviary systems show promise as animal-friendly alternatives.
- Further research is needed on the selection and weighting of sustainability indicators for robust conclusions.