A powerful coalition of high-profile celebrities, MPs, and animal rights activists is calling for the immediate closure of MBR Acres, a controversial animal testing facility in Wyton, Cambridgeshire, that has sparked years of protests due to its involvement in cruel animal experimentation. The facility, the only one in the UK breeding beagles for research, has been at the heart of a heated global debate about animal welfare, biomedical research, and the ethics of animal testing.
Among the vocal supporters of the campaign are well-known figures like Amanda Holden, Dame Joanna Lumley, and Jonathan Ross, who have signed a letter demanding that the government shut down the facility. Their appeal is supported by over 170,000 petitioners, MPs from across the political spectrum, and numerous animal rights organizations, including Peta and Animal Rising. The campaign’s growing momentum reflects widespread concern over the treatment of animals in laboratories and a push for the UK to take a leadership role in phasing out cruel animal testing practices.
Animal rights activists, including members of Animal Rising, have been protesting outside the facility since 2021, with some even conducting daring “rescue missions” to save beagles from MBR Acres. These high-profile rescues have sparked controversy, including one particularly notorious incident in which activists defaced a portrait of the King to draw attention to their cause. The activists claim that MBR Acres breeds around 2,000 beagles annually, with the sole purpose of selling them for use in medical and scientific experiments, where they are allegedly subjected to painful and distressing tests.

Footage from inside the MBR Acres facility has been released by animal rights groups, showing the heart-wrenching conditions the beagles are reportedly enduring. Among the most disturbing claims is that the beagles are subjected to painful experiments, including being bled to death through heart injections. These reports have only intensified calls for the immediate closure of the facility, as well as for the government to act decisively in ending the use of animals in testing altogether.
The campaign’s supporters, including the likes of Springwatch presenter Chris Packham and singer Will Young, who famously chained himself to the gates of the facility in protest, argue that animal testing is increasingly outdated and unnecessary. They point to the development of alternative research methods, such as computer-based simulations and lab-based testing, which have been shown to be effective in medical research. Critics, including Labour MP Brian Leishman, stress that these cruel and outdated practices must be phased out for good, advocating for a shift towards more humane and scientifically advanced testing methods.
Despite the public outcry and calls for action, MBR Acres’ parent company, Marshall BioResources, has defended its practices, claiming that they operate under strict animal welfare regulations and that their research is essential for biomedical advancements. They argue that their work is crucial in the development of life-saving medicines and that the use of animals is necessary for scientific progress. However, this defense has done little to quell the growing demand for the facility’s closure and the rehoming of the animals involved.
As the debate over animal testing continues to gain traction, the pressure is mounting on the UK government to take action. Politicians, celebrities, and animal rights groups are united in their call for a shift towards more ethical research practices, and there is growing momentum behind the push to close MBR Acres and end the use of animals in testing. The movement is calling for the UK to lead the world into a future without animal cruelty, and the fight to close MBR Acres has become a symbol of the broader struggle for animal welfare and ethical science.
Animal Rising’s director, Rose Patterson, said, “The government has a clear mandate to act. Shutting down MBR Acres is the easiest first step they could take in ensuring a future where animal testing is no longer necessary.” The growing public pressure is sending a strong message to policymakers that it is time for the UK to take the lead in advancing alternative methods and prioritizing animal welfare.
