Professor Meriel Moore-Colyer

Graduate Dean


Graduate Dean


BSc (Aberystwyth), BHSII, PhD (Edinburgh), R.Anim.Sci

Contact details

Tel: 01285 652531


University responsibilities

  • MSc Equine Science and BSc Equine Dissertation co-ordinator
  • Member of ethics committee

Professional memberships

  • British Society of Animal Science
  • British Horse Society
  • Registered Animal Scientist with Society of Biology

Additional Information 

  • Research and development of the Haygain hay steamer
  • Gut health and the study of digestive aids for horses


Equine nutrition and feeding behaviour

  • Feed development, new fibre feeds to promote health and welfare
  • Diet composition for all horses
  • Diet and behaviour (gut/brain axis)

Health and welfare of stabled horses

  • Managing feed in the stable environment to promote health
  • Obesity control
  • Respiratory allergens in feed
  • Equine Asthma diagnosis and prevention


  • In vivo digestibility
  • development of foregut in vitro model
  • hind-gut fermentation model and gas production

Academic Collaborators:

Prof Duncan Hannant and Dr Marcos Alcocer, Nottingham University

Prof Jo-Anne Murray, Glasgow University

Dr David van Doorn and Dr Wilbert Pelicaan Wageningen University, Netherlands


Commercial Collaborators:

Haygain Ltd UK, Development of the Haygain hay steamer and forage feeder

Eclipse Feeds Ireland, Development of all fibre creep feeds for Thoroughbreds

Natural Animal Feeds UK Supplement development for travelling performance horses

Purlife UK, Developing new generation behavioural and health supplements


  • BSc (hons) Dissertation for RAU
  • Research methodologies and statistics MSc / BSc
  • Equine Nutrition
  • Advances in Equine Science


Academic journals

  • 38. S. White, M. Moore-Colyer, E. Marti, L. Coüetil, D. Hannant, E.A. Richard and M. Alcocer. Development of a Complex Protein Microarray for Immunoglobulin E Profiling in Horses with Severe Equine Asthma JOURNAL OF VETERINARY INTERNAL MEDICINE. (PUBLISHED EARLY VIEW)
  • 37. M. Orard1,2, E. Hue, A. Couroucé3, C. Bizon3, M.P. Toquet1,2, M. Moore-Colyer4, L. Couëtil5, S. Pronost1,2, R. Paillot1,2, M. Demoor2, E.A. Richard1,2* (2018) The influence of hay steaming on clinical signs and airway immune response in severe asthmatic horses. BMC Veterinary Research.
  • 36. Daniels, S.P., Leng, J., Ellis, R., Swann, J., Moore-Colyer, M.J.S. and Proudman, C.J. (2017) The effect of moxidectin treatment on the equine hindgut microbiome, metabonome and feed fermentation kinetics in horses with very low parasite burdens. Equine Veterinary Education. 29 (S8) 6.
  • 35. Auger, E.J. and Moore-Colyer, M.J.S. (2017) The effect of management regime on airborne respirable dust concentrations in 2 different types of horse stable design Journal of Equine Veterinary Science. 51:105-109 
  • 34. Kirsty Roberts,  Andrew J. Hemmings, Meriel Moore-Colyer, Matthew O. Parker and  Sebastian D. McBride (2016) Neural modulators of temperament: A multivariate approach to
  • personality trait identification in the horse. Physiology & Behaviour: 167: 125–131
  • 33. Moore-Colyer, M.J.S. Taylor, J. and James, R. (2016) The effect of steaming and soaking on the respirable particle, bacteria, mould and nutrient content in hay for horses. Journal of Equine Veterinary Science. 39: 62-68. (DOI: 10.1016/j.jevs.2015.09.006)
  • 32. Moore-Colyer, M.J.S., Hemmings, A and Hewer, N. (2016) A preliminary investigation into the effect of ad libitum or restricted hay with or without Horslyx on the intake and switching behaviour of normal and crib-biting  horses. Livestock Science.186: 59-62  (
  • 31. Roberts, K.; Hemmings, A. and Moore-Colyer, M.J.S. Hale, C. (2015) Cognitive differences in horses performing locomotory versus oral stereotypic behaviour.  Applied Animal Behaviour Science. 168:37-44  (Doi:10.1016/j.applanim.2015.04.015)
  • 30. Moore-Colyer, M.J.S.,  Lumbis, K., Longland, A.C. and Harris, P.A. (2014) The effect of five different wetting treatments on the nutrient content and microbial concentration in hay for horses PLOS One – November 26.
  • 29. Murray, J.M.D., Moore-Colyer, M.J.S. and Dunnett, C. and  Longland. A.C. (2014) The effect of feeding a low or high starch diet on equine faecal parameters. Livestock Science.159: 67-70
  • 28. Moore-Colyer, M.J.S., O’Gorman, D. and Wakefield, K. (2014) An in vitro investigation into the effects of a marine-derived multi-mineral supplement in simulated equine stomach and hindgut environments. Journal of Equine Veterinary Science. 34(3): 391-397. DOI: 10.1016/j.jevs.2013.07.016,
  • 27. Ince, J., Longland, A.C., Moore-Colyer, M.J.S. and Harris, P.A. (2014) In vitro degradation of grass fructan by equid gastrointestinal digesta. Grass and Forage Science. 69(3): 514-523. DOI: 1111/gfs.12061
  • 26. S.A. Brown; Moore-Colyer, M.J.S; Hannant ,D. (2013) Phenotypic analyses support investigations of phylogeny in the Skyrian pony and other breeds. Bioscience Horizons 2013 6: hzt010-hzt010
  • 25. Moore-Colyer, M.J.S. and Fillery, B.G. (2012) The effect of three different treatments on the respirable particle content, total viable count and mould concentrations in hay for horses. In: Forages and grazing in horse nutrition. EAAP publication No. 132. Ed. M.Saastamoinen, M.J. Fradinho, A.S. Santos and N. Miraglia. Pp 101-107
  • 24. Murray, J.M.D., Dunnett, C., Moore-Colyer, M.J.S. and Longland, A.C. (2012) In vitro assessment of three fibrolytic enzyme preparations as potential feed additives in equine diets. Animal Feed Science and Technology. 171: 192-204.
  • 23. James, R and Moore-Colyer, M.J.S (2010) Determination of the microbial contamination in dry and steamed hay. European Workshop for Equine Nutrition, Cirencester, Sept 2010. The Impact of nutrition on the health and welfare of horses. EAAP publication No. 128. Ed A. Ellis, AC. Longland, M. Coenen, and N. Miraglia. p 128-132
  • 22. Murray, J.M.D., Bice, R.K.T and Moore-Colyer, M.J.S. (2010) The effect of particle size on the  in vitro fermentation of different ratios of high-temperature dried Lucerne and sugar beet pulp incubated with equine faecal inocula. Animal Feed Science and Technology. 162: 47-57.
  • 21. Murray, J.M.D., Sanderson, R., Longland, A., Moore-Colyer, M.J.S., Hastie, P. and Dunnett, C. (2009) Assessment of mathematical models to describe the rate of passage of enzyme-treated or sugar beet pulp-substituted Lucerne silage in equids Animal Feed Science and Technology. Vol 154: 228-240.
  • 20. Moore-Colyer, M.J.S. (2009) laminitis – A nutritionist’s perspective. National Equine Student, Issue 15. Journal of Equine Studies. 8: 29-30.
  • 19. Johnson, J.L. and Moore-Colyer, M.J.S. (2009) The relationship between range of motion of lumbosacral flexion-extension and canter velocity of horses on a treadmill. Equine Veterinary Journal. 41: 301-303
  • 18. Murray, J.M.D., Longland, A.C., Hastie, PM., Moore-Colyer, M.J.S. and Dunnett, C. (2008) The nutritive value of sugar beet pulp-substituted Lucerne for equids. Animal Feed Science and Technology. 140: 110-124  ANIFEE11705
  • 17. Murray, J.M.D., Moore-Colyer, M.J.S., Longland, A.C. and Dunnett, C. (2008) The effect of yeast supplementation on the  in vitro fermentation of high-temperature dried Lucerne. Animal Feed Science and Technology. 146: 149-159.
  • 16. Hale C.E., Moore-Colyer M.J.S. and Hemmings A.J. (2007). Feeding with Welfare in Mind: the role of alternative forages in meeting energy demands of domesticated horses. Animal Welfare. 16 (supp): 170.
  • 15. Murray, J.M.D., Longland, A.C.,  Davies, D.R., Hastie, P.M., Moore-Colyer, M.J.S. and Dunnett, C. (2007) The effect of enzyme treatment on the nutritive value of Lucerne for equids. Livestock Science. 112: 52-62. LIVSCI-00409
  • 14. Murray, J.M.D., Longland, A.C., Moore-Colyer, M.J.S. and Dunnett, C. (2006) The effect of feeding a low starch diet on the in vitro fermentative capacity of equine faecal inocula.  Animal Science.  82: 627-636 (DOI 10.1079/ASC200683)
  • 13. Murray, J.M.D., Longland, A.C., Moore-Colyer, M.J.S. (2006) In vitro fermentation of different ratios of high-temperature dried Lucerne and sugar beet pulp incubated with an equine faecal inoculum.  Animal Feed Science and Technology. 129: 89-98 (DOI10.1016/J.annifeedsci.2005.12.001)
  • 12. Murray, J.M.D., Longland, A.C., Moore-Colyer, M.J.S. and Dunnett, C. (2005). The effect of enzyme treatment on the nutritive value of high-temperature dries Lucerne for ponies. Pferdeheilkunde. 21: 41-42.
  • 11. Murray, J.M.D., Longland, A.C., Moore-Colyer, M.J.S. and Dunnett, C. (2005) The effect of enzyme treatment on the in vitro fermentation of Lucerne incubated with equine faecal inocula. British Journal of Nutrition. 83: 771-782 (DOI: 10.1079/BJN20051561)
  • 10. Yanez, D., Moore-Colyer, M.J.S., Longland, A.C., Walsh, C., Bakewell, E., Kirk, A., Grime, E., Northover, A., Davies, D. R., Griffith, G. Newbold, C.J. (2004). Microbial counts in different sites of the gastro-intestinal tract of the horse. Reproduction, Nutrition Development, Supplement 1 S 12. Concerns and responses to food safety, health and environmental issues. 4th Joint INRA-RRI Symposium on Gut Microbiology, 21-24 June 2004, Clermont-Ferrand, France.
  • 9. Moore-Colyer, M.J.S. Longland, A.C.(2004) Exploiting dietary fibre in equid diets.  Emerging Equine Science. BSAS publication no 32. Ed: J. Alliston,  S. Chadd, A.Ede, A. Hemmings, J. Hyslop, A. Longland, H. Moreton and M. Moore-Colyer. Nottingham University Press. Pp 113-129.
  • 8. Moore-Colyer, M.J.S.; Morrow, H.J. and Longland, A.C. (2003) Mathematical modelling of digesta passage rate, mean retention time and in vivo apparent digestibility of two different lengths of hay and big bale grass silage in ponies. British Journal of Nutrition. 90: 109-118. (DOI 10.1079/BJN2003869)
  • 7. Moore-Colyer, M.J.S.; Hyslop, J.J.; Longland, A.C. and Cuddeford, D. (2002) The mobile bag technique as a method for determining the degradation of four botanically diverse fibrous feedstuffs in the small intestine and total digestive tract of ponies. British Journal of Nutrition. 88: 729-740. (DOI 1079/BJN2002734)
  • 6. Murray J., Longland, A.C. and Moore-Colyer, M. (2001)   Chemical characterization and in vitro fermentation of high temperature dried alfalfa and grass hay. In  Recent Advances in Equine Nutrition Ed Pagan and R.J.Geor Kentucky Equine  Research,  115-117
  • 5. Moore-Colyer, M. J. (2000) Dietary fibre for the performance horse, In Horserace Betting Levy Board: a report from a workshop on equine nutrition Equine Veterinary Education. 12(4):187-194
  • 4. Moore-Colyer, M.J.S. and Longland, A.C.L. (2000) Intakes and  in vivo apparent digestibilities of four types of conserved grass forage by ponies. Animal Science. 71: 527-535. (ISSN number 1357-7298)
  • 3. Moore-Colyer, M.J.S.; Longland,A.C.; Hyslop,J. and Cuddeford, D.(2000) Intra-caecal fermentation parameters in ponies fed botanically diverse fibre feeds. Animal Feed Science and Technology.  84: 183-197. (ISSN number 0377-8401)
  • 2. Blackman, M. and Moore-Colyer, M.J.S. (1998) Hay for horses: the effects of three different wetting treatments on dust and mineral content. Animal Science. 66: 745-750. (ISSN number 1357-7298)
  • 1. Moore-Colyer, M.J.S. (1996) The effects of soaking hay fodder for horses on dust and mineral content. Animal Science. 63: 337-342.   (ISSN number 1357-7298)