The 5th issue (in German only) presents a broad range of insights: one major focus highlights zoos as emerging research venues, where innovative studies are conducted outside traditional laboratories, from behavioral monitoring to breeding programs. The Kompass also highlights how technological progress, such as AI-assisted data analysis and virtual models, is already helping to replace animal experiments. This is complemented by a critical comparison with developments in the United States and profiles of pioneering projects such as organ-on-a-chip systems and advanced non-animal testing methods. The issue concludes with a detailed overview of regional animal use trends across Germany.
The latest statistics show a further 13% decline in laboratory animal use in 2023, down to around 2.13 million animals. Mice continue to be the most commonly used species at 77%, followed by fish and rats. Farm animals, primates, cats, and dogs each account for only about 0.1% of all research animals. While conservation breeding slightly increased, use for basic research, applied research, and regulatory purposes declined further.
The message is clear: by consistently embracing new technologies and scientific best practices, research can continue to thrive while further reducing the number of animals used.
Laboratory Animals in Germany 2023
- Total: 2.13 million animals (−13% compared to 2022)
- Mice 77%, Fish 9.3%, Rats 7.1%
- Significant decreases: Mice (−12%) and Fish (−20%)
- Primates, cats, and dogs each around 0.1%
- Declines across basic research, applied research, and regulatory testing
- Slight increase in conservation-related projects
Would you like to learn more about the topic? Click on the following links to read previous issues: 2024 2023 2022 2021
The “Kompass Tierversuche” is published every year on the occasion of the International Day of Laboratory Animals, which is always celebrated on April 24. We as the 3R Competence Network NRW also have campaigns to mark this day. This year, we have launched a new page showcasing the important role of pigs in biomedical research. Also in 2023, we curated statements from members of the network in North Rhine-Westphalia, along with a photo collage, expressing how animal research can be improved and why it is still needed in basic biomedical research. Or last year, the role of clawed frogs in biomedical research was presented.