Numbers of animals

Year	Number of animals used in research at Imperial
2016	101,369
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 2016

Type of animal	Number	Percentage
Mice	87,389	86.21%
Rats	6,403	6.32%
Fish	6,304	6.22%
Guinea-pigs	531	0.52%
Birds	509	0.50%
Amphibians	146	0.14%
Rabbits	72	0.07%
Ferrets	15	0.01%

Breakdown of the number of procedures in 2016 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	Bird	Amphibian
Severity
Sub threshold	2,702	23,480	1,078	0	0	0	0	0
Mild	931	34,550	507	55	3	11	506	0
Moderate	2,176	18,078	3,499	306	17	2	0	0
Severe	325	174	48	1	1	2	0	146
Non-recovery	23	2,476	388	40	45	0	0	0
									Total
Total number of scientific procedures carried out under project licence authority	6,157	78,758	5,520	402	66	15	506	146	91,570
Total number of animals used under project licence authority	6,157	78,758	5,520	402	66	15	506	146	91,570
Animals used for breeding or tissue collection purposes	147	8,631	883	129	6	0	3	0	9,799
Total numbers	6,304	87,389	6,403	531	72	15	509	146	101,369

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.