Numbers of animals

Year Number of animals used in research at Imperial
2023 68,135
2022 71,406
2021 87,403
2020 72,823
2019 99,295
2018 102,497
2017 97,787
2016 01,369
2015 101,179
2014 111,874
2013 130,358
2012 123,547
2011 106,772
2010 139,725
2009 125,566
2008 115,282

Types of animals used in 2023

Type of animal Number Percentage
Mice 63646 93.41
Fish 1674 2.46
Rats 1709 2.51
Birds 25 0.04
Guinea pigs 799 1.17
Rabbits 42 0.06
Hamsters 240 0.35

Breakdown of the number of procedures by year using the different classifications of procedure as defined by the Home Office

Home Office statistics of scientific procedures on living animals: user guide

  Mouse Zebrafish Rat Bird Guinea-pig Rabbit Hamsters Total
Severity                
Sub-threshold 19161 0 36 0 0 0 0 19197
Mild 20604 1496 311 25 6 0 240 22682
Moderate 15676 0 616 0 621 0 0 16913
Severe 1091 0 7 0 0 0 0 1098
Non-recovery 524 0 144 0 0 22 0 690
                 Total
Total number of scientific procedures carried out under project licence authority 57056 1496 1114 25.00 627 22 240 60580
Total number of animals used under project licence authority 57056 1496 1114 25.00 627 22 240 60580
Animals used for breeding or tissue collection purposes 6590 178 595 0.00 172 20 0 7555
Total numbers 63646 1674 1709 25 799 42 240 68135

 

Total Number of animals bred on site in 2023

mice zebrafish rats 
45906 1836 520

 

 

Types of animals used in:

These figures are provided each year to the Home Office, which publishes annual statistics on the use of animals in scientific research in Great Britain.