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Practical Application of the 3Rs in Rodent Transgenesis
Thorsten Buch1, Boris Jerchow2, Branko Zevnik3,4
1Institute of Laboratory Animal Science, University of Zurich, Zurich, Switzerland.
Methods in Molecular Biology (Clifton, N.J.)
|March 30, 2023
Summary
This chapter provides practical guidance for implementing the 3Rs (replace, reduce, refine) principles in laboratories that generate genetically modified rodents. It offers a concise, checklist-style protocol covering all stages from planning to final animal manipulation.
Area of Science:
- Animal research ethics
- Genetically modified organisms
- Rodent models
Background:
- The 3Rs (replace, reduce, refine) are internationally recognized ethical guidelines for animal experimentation.
- Genome manipulation is a fundamental technique in modern biomedical research.
- Genetically modified rodents are crucial models in various scientific fields.
Purpose of the Study:
- To provide practical advice for implementing the 3Rs in laboratories generating genetically modified rodents.
- To offer a concise, checklist-like protocol for ethical animal use in transgenesis.
- To ensure adherence to animal welfare standards during genome manipulation procedures.
Main Methods:
- Focus on the planning and operational phases of generating genetically modified rodents.
- Development of an easy-to-use, checklist-style protocol for 3Rs implementation.
- Adaptable methodological concepts for mice and other sentient animals.
Main Results:
- A practical framework for integrating the 3Rs into the workflow of transgenic units.
- Guidance on applying the 3Rs from experimental design to the handling of genetically modified animals.
- Methodological concepts that can be adapted across different species.
Conclusions:
- The proposed protocol facilitates the ethical generation of genetically modified rodents.
- Implementation of the 3Rs enhances animal welfare in transgenesis research.
- The adaptable framework supports ethical research practices in diverse laboratory settings.

