Figures and Facts on Animal Research at the University of Basel
The University of Basel maintains detailed records of the total number of experiments conducted on vertebrate animals and the distribution of degrees of severity. These statistics are reported to the Federal Food Safety and Veterinary Office, which compiles national data.
Mice make up by far the largest proportion of animals at about 97%.
Animal Research in 2024 by Species
Mice
40'965
97.25%
Rats
810
1.92%
Fish
347
0.82%
Total
42'122
100%
One third of the experiments result in no stress for the animals, while about two thirds each, is classified as having mild or moderate stress, respectively. The remaining six percent of experiments involve severe stress. More information on the definition of severity levels, as well as examples of experiments with different degrees of severity, is provided on the Values and Responsibility page.
Degrees of Severity Levels by Animal Species in 2024
Mice
10100
17003
11380
2482
Rats
737
42
31
0
Fish
215
132
0
0
Total
11052
17177
11411
2482
A dedicated team of veterinarians and trained animal caretakers holds the responsibility of caring for and monitoring the animals at the University of Basel. Their efforts enable life science research groups to conduct advanced research and supplement their studies with animal experiments.
Figures on specialists and researchers
Number of animal facilities
6
Veterinarians in animal facilities, 3R coordination and animal welfare
5
Employees of the animal facilities, mostly animal care staff with specialization in laboratory animal care
63
Research groups carrying out animal experiments
65
University researchers working with vertebrate animals
~ 550
Ongoing trial approvals (as of January 2026)
171
Original publications in scientific journals from these research groups
~ 200
