Refinement

Area of Science:

• Laboratory animal science
• Biomedical research ethics
• Animal welfare in research

Background:

• The Three Rs (Replacement, Reduction, Refinement) guide ethical animal research.
• Full replacement of animals is not yet feasible, making refinement essential.
• Recent legislation in Europe and the US emphasizes animal well-being and minimizing distress.

Purpose of the Study:

• To highlight the importance of refinement in laboratory animal care.
• To discuss current challenges and advancements in animal welfare practices.
• To advocate for a global effort in defining laboratory animal needs.

Main Methods:

• Review of current animal welfare legislation and practices.
• Discussion of social housing implementation and its challenges.
• Examination of positive reinforcement training and its application.
• Consideration of refinement issues in rodent models, including wastage and euthanasia.

Main Results:

• Social housing is increasingly standard but poses challenges.
• Positive reinforcement training is gaining traction but not universal.
• Refinement issues in rodent models, such as mouse wastage and euthanasia, require attention.
• There is a need for international collaboration to define animal needs.

Conclusions:

• Continued focus on refinement is vital for ethical research and animal well-being.
• Adapting practices like social housing and training is necessary.
• Addressing specific issues in rodent models is critical.
• A unified global approach is needed to enhance both animal welfare and research quality.