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Updated: Jun 25, 2026
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Analysis of Fecal Microbiota Dynamics in Lupus-Prone Mice Using a Simple, Cost-Effective DNA Isolation Method
Published on: May 2, 2022
DNA analysis from stool samples: a fast and reliable method avoiding invasive sampling methods in mouse models of
Katy Kalippke1, Sonja Werwitzke, Marcus von Hornung
1Department of Hematology, Hemostasis, Oncology and Stem Cell Transplantation, Hannover Medical School, Feodor Lynen Str. 5, 30625 Hannover, Germany.
Laboratory Animals
|February 25, 2009
Summary
Non-invasive stool DNA analysis offers a safer alternative for genotyping laboratory animals, especially those with bleeding disorders like hemophilia. This method improves animal welfare and breeding program efficiency by eliminating risks associated with invasive sampling.
Area of Science:
- Animal Models
- Genetics
- Biotechnology
Background:
- Invasive tail clipping for DNA sampling poses significant bleeding risks in haemophilia mouse models.
- Standard genotyping methods hinder breeding programs for haemostasis disorder research.
Purpose of the Study:
- To evaluate a non-invasive stool DNA isolation method for genotyping laboratory animals.
- To improve animal welfare and breeding efficiency in haemophilia mouse models.
Main Methods:
- DNA extraction from mouse faecal pellets.
- Polymerase chain reaction (PCR) amplification for genotyping Fc receptor and factor VIII genes.
- Comparison of DNA quality and genotyping success rates between stool and blood samples.
Main Results:
- High-quality DNA (mean yield 7.1 microg/pellet) was successfully extracted from faecal samples.
- Genotyping accuracy was high (95% in the first attempt) and comparable to blood-based methods.
- No animals were lost due to bleeding complications using the non-invasive method.
Conclusions:
- Faecal DNA isolation is a viable and preferable method for genotyping laboratory animals, particularly those with bleeding disorders.
- This non-invasive technique enhances animal welfare, reduces animal use, and improves breeding program effectiveness.
