A new study is aiming to discover why an increasing number of mares living on the Cumbrian fells are experiencing Retained Foetal Membrane (RFM) after foaling.
RFM is a postpartum condition which occurs in livestock and horses when the placenta fails to expel naturally.
Freya Wood, a veterinary surgeon from Paragon Vets in Cumbria, is embarking on the study as part of a project for her master’s in veterinary professional studies.
“We’ve noticed a steep rise in recent years in the number of mares affected by RFM and as it can affect a mare’s fertility long term and incurs costs for breeders, it’s clearly a concern both from a welfare and economic perspective,” said Freya.
“Whilst we know we can treat mares reasonably effectively, we’re keen to understand more about the causes and why this recent increase in cases has occurred.”
Nutrition link
Previous studies in other species suggests that there is a potential link with nutritional deficiencies, so Freya is working alongside both NAF and Dengie Horse Feeds for the study.
“It’s great to be able to work with nutrition specialists on this project. We’re really keen to offer practical solutions to breeders and so it’s great to know we can signpost them to the right products,” said Freya.
RFM is often associated with premature births, twins and dystocia (difficulty during labour). It has not been widely studied in native pony mares.
Collaborative approach
“I’m thrilled to be working with colleagues across the equine industry on this important study, utilising all of our strengths to understand the issue better. As a Cumbrian resident, and Fell pony enthusiast, I must admit to having a soft spot for the subjects too,” said Kate Hore, head nutritionist at NAF.
Dr Katie Williams, technical manager at Dengie, added: “This collaboration is really exciting for me as it’s not only combining expertise from different professions but also highlighting one of the great strengths of the equine feed industry which is our ability to work together for a greater goal.”
Freya’s study will run from 2026 through to 2027 and anyone interested in participating should contact Paragon Vets at [email protected].
Image © Shutterstock.
