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Philip Creighton

Research Officer and Sheep Enterprise Leader

Research Interests

  • Sheep Grassland Systems
  • Grazing management
  • Grass production and utilisation
  • Alternative forage options for sheep systems

Current Projects

  • An evaluation of incorporating white clover into sheep grazed swards at two fertiliser nitrogen and stocking rate levels on the productivity of pasture based lamb production systems
  • An evaluation of alternative forages in combination with perennial ryegrass to increase animal intake, performance and output in sheep pasture based production systems
  • Development of novel methodology to predict and validate feed intake and efficiency in beef cows and sheep


  • PhD in Grassland Science, University College Dublin 2012
  • Bachelor of Agricultural Science, University College Dublin 2008


Graduated from UCD with an Animal and Crop production degree in 2008 and completed a PhD with Teagasc Moorepark and UCD in 2012 investigating the impact of varying levels of perennial ryegrass content on sward production potential and also completed work looking at the effect of alternative reseeding methods. Commenced current role as Research officer in Teagasc Athenry focussing on Sheep Grassland Systems in 2011. 

Earle E., Boland, T.M., McHugh N. and Creighton, P. (2017) Measures of lamb production efficiency in a temperate grass based system differing in ewe prolificacy potential and stocking rate . J. Anim. Sci. 2017.95 doi: 10.2527/jas2017.1427

Earle E., McHugh N., Boland, T.M. and Creighton, P. (2017) Evaluation of the effects of ewe prolificacy and stocking rate on herbage production, utilization, quality and sward morphology in a temperate grazing system. Grass Forage Sci. 2017, doi: 10.1111/gfs. 12305

Earle E., McHugh N., Boland, T.M. and Creighton, P. (2016) Effect of ewe prolificacy potential and stocking rate on ewe and lamb performance in a grass-based lamb production system. J. Anim. Sci. 2016. doi: 10.2527/jas2016.0772

F. P. Campion, F. M. McGovern, S. Lott,A. G. Fahey, P. Creighton, and T. M. Boland (2016) Comparison of energy rationing systems for late gestation ewes: Impacts on ewe and lamb performance.  J. Anim. Sci. 2016.94:3441–3456 doi:10.2527/jas2016-0522

Creighton, P. , Kennedy, E. , Hennessy, D. and O’Donovan, M. (2016) Impacts of Sward Renewal Method with Perennial Ryegrass (Lolium perenne) on Dry Matter Yield, Tiller Density and Nitrate Leaching. American Journal of Plant Sciences, 7, 684-694. doi: 10.4236/ajps.2016.74061.

A. Bohan , L. Shalloo , B.Malcolmd, C.K.M. Ho, P. Creighton , T.M. Boland, N.McHugh (2016) Description and validation of the Teagasc Lamb Production Model. Agricultural Systems: 148:124-134 http://dx.doi.org/10.1016/j.agsy.2016.07.008

Earle E., McHugh N., Boland, T.M. and Creighton, P. (2016) Effect of ewe prolificacy potential and stocking rate on primiparous flock performance and herbage production. Small Ruminant Research http://dx.doi.org/10.1016/j.smallrumres.2016.08.015

Creighton, P., Kennedy, E., Gilliland, T., Boland, T.M. and O’Donovan, M.  (2012). The effect of Lolium perenne content and defoliation method on sward production potential. Grass and Forage Science 67: 526-534. DOI: 10.1111/j.1365-2494.2012.00872.

Creighton, P., Kennedy, E., Shalloo, L., Boland, T.M., and O’ Donovan, M. (2011). A survey analysis of grassland dairy farming in Ireland, investigating grassland management, technology adoption and sward renewal. Grass and Forage Science 66: 251-264. DOI: 10.1111/j.1365-2494.2011.00784.

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