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Aerial view of MBR Acres beagle breeding facility in Wyton, Cambridgeshire
Evidence & Facts

The Truth About MBR Acres

Everything on this page is sourced from publicly available records, court documents, parliamentary questions, and verified reports. These are facts, not opinions.

MBR Acres beagle breeding facility, Wyton, Cambridgeshire — aerial view
MBR Acres — Sawtry Way (B1090), Wyton, Cambridgeshire PE28 2DT

The facility. Hidden behind hedgerows in rural Cambridgeshire. Approximately 2,000 beagle puppies bred here every year for sale to laboratories.

MBR Acres: The Facility

Location

Sawtry Way (B1090), Wyton, Cambridgeshire, PE28 2DT. Hidden behind hedgerows in rural Cambridgeshire.

Purpose

Breeds ~2,000 beagle puppies every year to sell to laboratories for animal testing. These dogs are born to suffer.

No Independent Oversight

Zero independent oversight. The public has no right to inspect or verify animal welfare inside.

The Bleeding Licence

During the open rescue trials, the prosecution conceded a critical fact: MBR Acres holds a licence to bleed dogs under terminal anaesthesia.

This means that in addition to breeding beagles for sale to laboratories, MBR Acres is licensed to carry out procedures on dogs that involve bleeding them while under anaesthesia from which they do not recover. This fact is now part of the court record.

The public was never told. It took a criminal trial for this information to emerge.

The Green Hill Connection

Green Hill, Brescia, Italy

The same company previously ran Green Hill in Brescia, Italy. In 2012, authorities raided the facility after reports of severe animal mistreatment.

3
Executives convicted of animal cruelty (2014)
6,023
Dogs that died at Green Hill
0
Reforms made — they simply moved to the UK
Beagles inside MBR Acres breeding facility
Inside MBR Acres. Born to suffer.
A liberated beagle taking first steps on grass
First steps outside. Liberation.
A rescued beagle safe in a loving home
Safe home. This is what rescue looks like.

Two Juries Said Not Guilty

First Trial — Cambridge, 2026

Four rescuers stood trial at Cambridge Crown Court. The jury unanimously returned not guilty on all burglary charges.

Verdict: Not Guilty

Second Trial — Peterborough, 2026

Five rescuers faced the same charges in March 2026. After a 7-day trial, the jury again returned not guilty. Two juries agreed: rescue is not dishonest.

Verdict: Not Guilty

Public Opposition

500,000+
Petition signatures across multiple petitions demanding MBR Acres closure
121,000+
Signatures on parliamentary petition #736578 cited at the Westminster Hall debate on 27 April 2026 (still climbing)
65+
Companies have cut ties with MBR Acres under public pressure
86%
Of the public find testing on dogs unacceptable (2018 Ipsos MORI poll for UK Government)
4,016
Procedures carried out on beagles in UK laboratories in 2021 alone (House of Commons Library)
£2.1m+
Spent by Cambridgeshire Police on MBR Acres protest activity since 2021

Public Backing

The campaign has the public support of Dame Joanna Lumley, Chris Packham, Jonathan Ross, Amanda Holden, Will Young, Peter Egan, Megan McCubbin, and Meg Mathews, among others. Chris Packham provided a character reference at the Peterborough trial.

Shortlisted

Lush Prize 2026

Camp Beagle — the longest-running grassroots protest at MBR Acres, and an allied campaign — has been shortlisted for the 2026 Lush Prize, the largest prize fund in the non-animal testing sector (£250,000 total). Sixty nominations from twenty-five countries made the shortlist. Winners announced in May 2026. We celebrate their work and are proud to stand alongside them.

Where the Beagles Go

MBR Acres breeds. It does not test. The dogs are sold at around sixteen weeks of age to contract research organisations -- the laboratories that carry out toxicity testing for pharmaceutical, chemical and consumer goods companies. The named customers in public reporting include:

Charles River

US-headquartered contract research giant. Operates UK and European facilities. Documented destination of MBR Acres beagle puppies, including a delivery run observed leaving Wyton in February 2026.

Labcorp

One of the largest contract research organisations in the world. Carries out regulatory toxicity testing on dogs at UK and overseas sites. Named customer of MBR Acres in industry reporting.

Sequani

UK-based contract research organisation in Ledbury, Herefordshire. Carries out regulatory repeat-dose toxicity testing on beagles. Named customer in parliamentary briefings on MBR Acres.

Why this matters

MBR Acres exists because customers buy. The customers exist because pharmaceutical, chemical and consumer goods companies still commission animal toxicity testing, often when modern non-animal methods would do the same job. Pressure on the customer chain is pressure on MBR Acres.

Modern Alternatives Exist

Animal testing is not a scientific necessity. Modern technology provides better, more reliable alternatives.

Organ-on-a-Chip

Microfluidic devices using actual human cells to simulate organ function. More accurate than animal models.

AI Modelling

Machine learning predicts drug toxicity from molecular structure, trained on human data -- not animal experiments.

Advanced Cell Cultures

3D organoids grown from human stem cells provide human-relevant data that animal models cannot replicate.

UK Animal Testing Statistics

The UK is one of Europe's largest users of animals in research. Millions of procedures carried out every year.

Dogs are specially protected under UK law -- yet still used in testing. Beagles are chosen for their docile, trusting nature.

Despite public opposition and proven alternatives, dog experiments have not decreased as the science demands.

Timeline of Key Events

2012

Green Hill Raided in Italy

Italian authorities raid the Green Hill beagle breeding facility in Brescia. Thousands of dogs found in deplorable conditions.

2014

Green Hill Executives Convicted

Three executives convicted of animal cruelty. 6,023 dogs died at the facility.

2014–2015

Operations Relocate to UK

Marshall BioResources moves breeding operations to a new facility at Wyton, Cambridgeshire.

2020

MBR Acres at Full Capacity

Wyton site reaches full capacity: approximately 2,000 beagle puppies bred per year for laboratories.

2021

Protest Camp Established

Sustained protest presence established at the gates of MBR Acres. Continuous vigil begins.

2022

Petition Passes 100,000 Signatures

Public petition crosses 100,000 signatures, triggering eligibility for parliamentary debate.

2022 (Dec)

23 Beagle Puppies Rescued

23 puppies rescued from MBR Acres across two open rescues (18 in one, 5 in another) -- documented and carried out in full public view.

2023 (Jan)

Westminster Hall Debate

Parliament debates "Commercial Breeding for Laboratories" in Westminster Hall.

2023

Companies Sever Ties

Multiple companies cut ties with MBR Acres following sustained public pressure.

2024

Petitions Pass 500,000 Signatures

Petitions across multiple platforms collectively pass 500,000 signatures.

2025 (Dec)

Trial 1 -- Five Convicted

Cambridge Crown Court: five defendants convicted of burglary after 12-day trial.

2026 (Jan)

Trial 2 -- First Ever Acquittal

Cambridge Crown Court: four defendants unanimously acquitted. First not guilty verdict for an open rescue in UK history.

2026 (Feb)

Trial 3 -- Four Convicted

Peterborough Crown Court: four defendants convicted after 7-day trial and five hours of deliberation.

2026 (Mar)

Trial 4 -- Five Acquitted

Peterborough Crown Court: five defendants acquitted after two weeks of trial and three days of deliberation. Chris Packham provided a character reference.

2026 (Mar)

Trial 5 -- Three Convicted

Three defendants convicted by 10-2 majority for the June 2022 rescue of five beagles. The prosecution conceded MBR holds a licence to bleed dogs under terminal anaesthesia.

2026 (18 Apr)

Ridglan Farms Action -- Wisconsin

Over 1,000 peaceful activists gathered at Ridglan Farms in Wisconsin demanding compliance with a January 2025 court ruling. Dane County Sheriff's deputies deployed tear gas, rubber bullets, pepper spray and flashbang grenades. 25 arrested.

2026 (24 Apr)

Ridglan Agrees to Surrender Breeding Licence

Following the prosecutor's review, Ridglan Farms agreed to surrender its licence to breed beagles for outside sale to research institutions by 1 July 2026 — the first stepping stone.

2026 (27 Apr)

Westminster Hall Debate

Petition #736578 (121,000+ signatures) debated in Westminster Hall. 14 MPs from every major party called for an end to dog testing. The Huntingdon MP said the government's own audit of MBR Acres 'does not tally' with constituent reports. The Minister of State responded by re-citing the November 2025 strategy document MPs had just criticised for lacking statutory targets.

2026 (29 Apr)

Ridglan Agrees to Release 1,500 Beagles

Ridglan signed a further deal: 1,500 beagles to be released. Beagle Freedom Project taking 500 of them. Big Dog Ranch Rescue and the Center for a Humane Economy negotiated. Same day, the House Appropriations Committee approved an amendment directing USDA to review breeder licences where state licensure has been lost, with cross-party support from Reps. Mark Pocan (D-WI) and Derrick Van Orden (R-WI).

2026 (1 May)

Transfers Begin

1,500 beagles begin moving from Ridglan to safety. Hundreds remain inside — the fight is not over. But the closest US equivalent to MBR Acres has been forced open by sustained nonviolent public pressure, court probable-cause findings, federal pressure and rescues who refused to walk away. The model now has a precedent.

The Evidence Is Clear

The facts speak for themselves. Now it is time to act.

Gallery

From the Movement

The people, the dogs, the action. As more imagery comes in, this strip grows with it.