Previous Statistics - Durham University

Ethics & Governance

Previous Statistics

Every year, researchers who undertake licensed work involving animals submit a report to the Home Office detailing the number of procedures carried out during the year.

See the most recent statistics.

2022

Procedures involving animals licensed under the Animals (Scientific Procedures) Act 1986 (ASPA) during the period 1 January to 31 December 2022:

Species	Number of Procedures
Rabbit	95
Mouse	206
Rat	1
Red Deer (wild caught and released)	1

A breakdown by species of the number of procedures classified as sub-threshold, mild, moderate, severe or non-recovery according to the Home Office’s classification system:

Species	Sub-threshold	Mild	Moderate	Severe	Non-recovery
Rabbit	0	95	0	0	0
Mouse	35	144	27	0	0
Rat	0	1	0	0	0
Red Deer (wild caught and released)	0	1	0	0	0

2021

Procedures involving animals licensed under the Animals (Scientific Procedures) Act 1986 (ASPA) during the period 1 January to 31 December 2021:

Species	Number of Procedures
Rabbit	61
Mouse	118
Rat	18

A breakdown by species of the number of procedures classified as sub-threshold, mild, moderate, severe or non-recovery according to the Home Office’s classification system:

Species	Sub-threshold	Mild	Moderate	Severe	Non-recovery
Rabbit	0	61	0	0	0
Mouse	43	53	22	0	0
Rat	0	18	0	0	0

2020

Procedures involving animals licensed under the Animals (Scientific Procedures) Act 1986 (ASPA) during the period 1 January to 31 December 2020:

Species	Number of Procedures
Rabbit	123
Mouse	120

A breakdown by species of the number of procedures classified as sub-threshold, mild, moderate, severe or non-recovery according to the Home Office’s classification system:

Species	Sub-threshold	Mild	Moderate	Severe	Non-recovery
Rabbit	0	123	0	0	0
Mouse	44	47	29	0	0

2019

Procedures involving animals licensed under the Animals (Scientific Procedures) Act 1986 (ASPA) during the period 1 January to 31 December 2019:

Species	Number of Procedures
Rabbit	122
Mouse	214
Rat	24
Fish (includes wild caught and released)	221

A breakdown by species of the number of procedures classified as sub-threshold, mild, moderate, severe or non-recovery according to the Home Office’s classification system:

Species	Sub-threshold	Mild	Moderate	Severe	Non-recovery
Rabbit		119		3
Mouse	40	115	57	2
Rat		24
Fish (includes wild caught and released)		99	116	6

2018

Procedures involving animals licensed under the Animals (Scientific Procedures) Act 1986 (ASPA) during the period 1 January to 31 December 2018:

Species	Number of Procedures
Rabbit	264
Mouse	630
Rat	61
Fish (includes wild caught and released)	783

A breakdown by species of the number of procedures classified as sub-threshold, mild, moderate, severe or non-recovery according to the Home Office’s classification system:

Species	Sub-threshold	Mild	Moderate	Severe	Non-recovery
Rabbit	0	264	0	0	0
Mouse	190	265	173	2	0
Rat	0	11	11	3	36
Fish (includes wild caught and released)	0	112	596	75	0

2017

Procedures involving animals licensed under the Animals (Scientific Procedures) Act 1986 (ASPA) during the period 1 January to 31 December 2017:

Species	Number of Procedures
Rabbit	282
Mouse	2,084
Rat	109
Fish (includes wild caught and released)	1,796

A breakdown by species of the number of procedures classified as sub-threshold, mild, moderate, severe or non-recovery according to the Home Office’s classification system:

Species	Sub-threshold	Mild	Moderate	Severe	Non-recovery
Rabbit	0	281	0	1	0
Mouse	1,233	522	307	16	6
Rat	0	6	71	14	18
Fish (includes wild caught and released)	0	267	1529	0	0