Dr Gwenllian Rees BVSc (Hons) PhD MRCVS

Dr Gwenllian Rees

Lecturer in Veterinary Science (Welsh Medium)

Aberystwyth School of Veterinary Science

Contact Details


Gwen is Lecturer in Veterinary Science at Aberystwyth University, and was previously Senior Research Associate at Bristol Vet School. She is currently leading the Aberystwyth University delivery as PI of the Arwain DGC project, a Welsh Government-funded collaborative initiative to train and support a network of Veterinary Prescribing Champions across Wales. Her research interests include dairy cattle, AMR and antimicrobial stewardship, ethnography and evidence based veterinary medicine. Gwen is a fluent Welsh speaker, originally from Llanelli. Qualifying as a vet from the University of Liverpool in 2009, she has worked in farm and equine practice in West Wales and New Zealand. She took up a role at Bristol Vet School as Teaching Fellow in Farm Animal Population Medicine in 2014, and undertook a PhD researching prescription veterinary medicine use by UK dairy farmers. Gwen is Associate Editor and sits on the Editorial Board for the BMJ’s Veterinary Record Case Reports, is Junior Vice-President of the British Veterinary Association’s Welsh Branch Council, sits on the Welsh Government’s AMR in Animals and the Environment Delivery Group, is a Trustee of the Animal Welfare Foundation and is an author on the Royal College of Veterinary Surgeons’ Evidence Based Veterinary Medicine (EBVM) Learning projects.

Research Groups

  • One Health
  • Epidemiology


Rees, G, Bard, AM & Reyher, KK 2021, 'Designing a National Veterinary Prescribing Champion Programme for Welsh Veterinary Practices: The Arwain Vet Cymru Project', Antibiotics, vol. 10, no. 3, 253. 10.3390/antibiotics10030253
Cutress, D & Rees, G 2021, 'Gastrointestinal roundworms in cattle – consequences, cause, and controls' Farming Connect. <https://businesswales.gov.wales/farmingconnect/news-and-events/technical-articles/gastrointestinal-roundworms-cattle-consequences-cause-and-controls>
Rees, G, Barrett, DC, Reyher, KK & Sánchez-Vizcaíno, F 2021, 'Measuring antimicrobial use on dairy farms: A method comparison cohort study', Journal of Dairy Science, vol. 104, no. 4, pp. 4715-4726. 10.3168/jds.2020-18690
Sellers, ER, Baillie, S, Dean, R, Warman, SM, Janicke, H, Arlt, S, Boulton, C, Brennan, M, Brodbelt, D, Brown, F, Buckley, L, Du, M, Gallop, E, Goran, G, Grindley, D, Haddock, LA, Ireland, J, McGowan, C, Moberly, H, Place, EJ, Rahman, MM, Rees, G, Reyher, KK, Sanchez, J, Schoeman, J, Urdes, L, vanLeeuwen, J & Verheyen, K 2021, 'Promoting Evidence-based Veterinary Medicine through the online resource ‘EBVM Learning’: User feedback', Veterinary Evidence, vol. 6, no. 1. 10.18849/ve.v6i1.392
Buller, H, Adam, K, Bard, AM, Bruce, A, Chan, KW, Hinchliffe, S, Morgans, LC, Rees, G & Reyher, KK 2020, 'Veterinary Diagnostic Practice and the Use of Rapid Tests in Antimicrobial Stewardship on UK Livestock Farms', Frontiers in Veterinary Science, vol. 7, 569545. 10.3389/fvets.2020.569545
More publications on the Research Portal