Numbers of animals

YearNumber of animals used in research at Imperial
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 2015

Type of animalNumberPercentage
Mice 84,238 83.26%
Fish 10,477 10.35%
Rats 5,927 5.86%
Guinea-pigs 266 0.26%
Rabbits 213 0.21%
Amphibians 42 0.04%
Ferrets 16 0.02%

Breakdown of the number of procedures in 2015 using the different classifications of procedure as defined by the Home Office

User Guide to Annual Home Office Statistics of Scientific Procedures on Living Animals Great Britain (pdf)

  Zebrafish Mouse Rat Guinea-pig Rabbit Ferret Amphibian  
Severity                
Sub threshold 5022 10263 47 0 0 0    
Mild 444 44119 1919 71 120 16    
Moderate 4465 20554 2478 90 16 0    
Severe 174 443 36 0 1 0    
Non-recovery 304 1542 536 39 61 0    
                Total

Total number of scientific procedures carried out under project licence authority

10409 76921 5016 200 198 16   92760
Total number of animals used under project licence authority 10409 76921 4904 200 198 16   92648
Animals used for breeding or tissue collection purposes 68 7317 1023 66 15 0 42 8531
Total numbers 10477 84238 5927 266 213 16 42 101179

Types of animals used in 2014

Type of animalNumberPercentage
Mice 93,543 83.61%
Fish 10,685 9.55%
Rats 6,853 6.13%
Guinea-pigs 256 0.23%
Other rodents 252 0.23%
Rabbits 209 0.19%
Amphibians 56 0.05%
Ferrets 20 0.02%

Types of animals used in 2013

Type of animalNumberPercentage
Mice 117,707 90.29%
Rats 8,356 6.41%
Fish 3,287 2.53%
Birds 536 0.41%
Guinea-pigs 252 0.19%
Rabbits 140 0.11%
Ferrets 36 0.03%
Other rodents 44 0.03%

Types of animals used in 2012

Type of animalNumberPercentage
Mice 112,620 91.15%
Rats 8,852 7.16%
Fish 916 0.74%
Guinea-pigs 602 0.49%
Amphibians 303 0.25%
Rabbits 220 0.18%
Ferrets 28 0.02%
Pigs 6 0.01%

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.