Factsheet
Recorded statistics of animal research procedures
Details of recorded animal research procedures from 2020 - 2024
Updated on 28 April 2026
Number of regulated procedures recorded between 2020-2024
| 2020 | 2021 | 2022 | 2023 | 2024 | |
| TOTAL | 20262 | 22502 | 22312 | 21299 | 18590 |
| Mouse | 19928 | 22336 | 22064 | 20906 | 18256 |
| Rat | 256 | 155 | 203 | 173 | 195 |
| Frog | 78 | 11 | 45 | 220 | 139* |
| *colony closed in 2024 |
Scientific purpose of all species recorded between 2020-2024
| Scientific Purpose | 2020 | 2021 | 2022 | 2023 | 2024 |
| TOTAL | 20262 | 22502 | 22312 | 21299 | 18590 |
| Breeding | 13961 | 13163 | 12794 | 12046 | 11183 |
| Other Scientific Use | 6301 | 9339 | 9518 | 9253 | 7407 |
Actual severities experienced by all species recorded between 2020-2024
| Severity | 2020 | 2021 | 2022 | 2023 | 2024 |
| TOTAL | 20262 | 22502 | 22312 | 21299 | 18590 |
| Sub Threshold | 14777 | 15484 | 15935 | 13795 | 13363 |
| Mild | 4165 | 5305 | 4135 | 4790 | 3708 |
| Moderate | 884 | 1235 | 1719 | 2312 | 1226 |
| Severe | 21 | 84 | 23 | 10 | 13 |
| Non recovery | 415 | 394 | 500 | 392 | 280 |
Number of non-regulated procedures recorded between 2020-2024
| Non-Regulated | 2020 | 2021 | 2022 | 2023 | 2024 |
| TOTAL | 4048 | 2909 | 3766 | 2934 | 3464 |
| Mice | 3740 | 2176 | 2877 | 2195 | 2968 |
| Rats | 308 | 733 | 889 | 739 | 488 |
| Rehomed Rats | 26 | 9 | 3 | 12 | 8 |
Animals in research
Further information about the University's policies to minimise the use of animals in research.
Biological Services