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Developments made with grey squirrel contraception
Grey squirrels can spread harmful diseases to endangered red squirrels.
Grey squirrels pose a threat to endangered red squirrels.

The University of Edinburgh’s Roslin Institute has marked key developments in the production of contraceptives for wild grey squirrels.

Research, led by the government’s Animal and Plant Health Agency (APHA), has resulted in an edible contraceptive that could reduce the threat grey squirrels pose to red squirrels.

Grey squirrels are considered an invasive species, with no protection under the Wildlife and Countryside Act (1981). As well as taking over habitats, they can also spread harmful diseases to the endangered red squirrel.

APHA has tested a new vaccine, contained in a capsule, which is made from plant pollen spores by Sporomex.

The edible vaccine triggers an immune response, causing the body to produce antibodies against reproductive hormones. This then interferes with the reproductive system and causes infertility.

It is designed to have minimal environmental impact, so can be added to food bait.

The contraceptive has already been tested on rats in a laboratory setting, which became infertile after ingesting the contraceptive as a vaccine. They also have an effect on captive grey squirrels.

The next stage of the process will see APHA collaborate with the Roslin Institute to increase the scale and duration of the vaccines while keeping them suitable for taking into the wild.

Experts from the Roslin Institute have also provided information on immune response measurements. This will aim to ensure a safer and more ethical method to population control.

Elsewhere, efforts are underway to create a feeding station accessible only to grey squirrels, including weight-sensitive doors.

Bex Pinkham, a spokesperson from APHA, said: “I’m really encouraged by the progress we’ve made in our research so far as part of this important partnership project. 

“These breakthroughs are a positive step forward towards a grey squirrel management tool that will mean so much for our UK woodlands.”

Prof Jayne Hope, from the Roslin Institute, added: “We are pleased to be involved in this exciting project that could enable the development of a manageable, humane solution for control of populations such as grey squirrels”

Image © TheLiftCreativeServices/Shutterstock

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FIVP announces third series of Practice Matters

News Story 1
 The Federation of Independent Veterinary practices (FIVP) has announced a third season of its podcast, Practice Matters.

Hosted by Ian Wolstenholme, series three will focus on the Competition and Markets Authority (CMA) investigation, including a discussion about some of the expected impacts on independent veterinary colleagues.

Episode one launches on 13th January with guests Drs David Reader and Scott Summers, who will draw on their research into the CMA investigation and provide insights into themes such as transparency, pricing and consumer trust.

Ian Wolstenholme said: "In its third series, we will try and hone in on what the changes will mean in reality for independent practices with advice and guidance on implementation and delivery, drawing on the experience of our own team and other experts in the profession. Hope you can join us soon!" 

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Forming part of a wider, collaborative initiative, the results will help identify the types of data available so that challenges with data collection can be better understood and addressed.

Anyone working in the UK farming sector, including vets and farmers,is encouraged to complete the survey, which is available at app.onlinesurveys.jisc.ac.uk