The latest statistics

The latest Home Office statistics -
animals used in scientific procedures

The Home Office releases statistics of scientific procedures on animals each year. Numbers reached a minimum in 2001 at a little under 3 million, but have since risen steadily. The latest Home Office Statistics on animals used in scientific procedures are for 2019.

3.40 million scientific procedures involving live animals were carried out in Great Britain in 2019, down 3.4% from the 3.52 million in 2018.

These procedures can be split into those for experimental purposes (1.73 million) and procedures for the creation and breeding of GA (Genetically Altered) animals (1.67 million). 

93% of procedures (both for experimental and breeding purposes) used mice, fish and rats.

The Home Office reported that experimental procedures accounted for over half of all procedures (1.73 million) carried out on animals in 2019. It added that almost 1 million (984,000) were for the purpose of basic research, most commonly focusing on the immune system, nervous system, and oncology (cancer).

The remaining procedures (1.72 million) were for the creation and breeding of genetically altered (GA) animals. 88% of these procedures were to maintain and breed established GA lines and 12% were for the creation of new lines. 

The full statistics can be viewed on the Home Office website.

Annual statistics

'In 2019, 3.40 million scientific procedures involving animals were carried out in Great Britain.'