History
How we got here.
Britain still breeds beagles for laboratories. This is the story of the breeders, the labs, the trials and the wins.
Why beagles
Beagles are bred to order for regulatory toxicity testing of medicines and chemicals. At around sixteen weeks old they are sold on to contract research laboratories. It is legal, licensed and mostly out of sight.
2,889
procedures on dogs in British labs in 2025, up 9% (Home Office)
The UK story
At MBR Acres in Cambridgeshire, up to 2,000 beagles a year are widely reported to be bred for laboratories. It has become the focus of the UK fight.
January 2018
MBR Acres Ltd, part of the US group Marshall BioResources, takes over the Wyton site in Cambridgeshire. Previous owners included Harlan Laboratories.
June 2021
The Camp Beagle protest camp begins outside the gates of MBR Acres.
2022
Open rescues at MBR Acres. 23 beagles are rescued across two actions and 18 people are charged with burglary.
February 2026
Regulations made under the Public Order Act 2023 bring life sciences sites under key national infrastructure protest law, with up to 12 months in prison and an unlimited fine.
April 2026
Parliament debates a petition signed by 121,854 people, in Westminster Hall on 27 April.
September 2026
People march in London and Huntingdon while the March for Animals walks to Marshall BioResources in New York. A new petition for a public inquiry passes 10,000 signatures.
One company, many countries
MBR Acres belongs to Marshall BioResources, which lists breeding sites in four countries.
United States
North Rose, New York
Marshall Farms, the company headquarters and flagship breeding site.
United Kingdom
Wyton and Grimston
MBR Acres in Cambridgeshire, and B&K Universal near Hull.
France
Gannat and Mézilles
French sites breeding beagles and golden retrievers for laboratories.
China
Breeding facilities
Public detail on these sites is limited, and we say so.
The law
Breeding dogs for experiments is legal in the UK under a Home Office licence. Laws can change, and that is what this campaign is for.
Now you know. Do something.
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