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Philip Creighton

Research Officer – Grassland Science

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


PhD in Grassland Science, University College Dublin 2012

Bachelor of Agricultural Science, University College Dublin 2008

Benoit M, Sabatier R, Lasseur J, Creighton P, Dumont B. Optimising economic and environmental performances of sheep-meat farms does not fully fit with the meat industry demands. (2019) Agronomy for Sustainable Development 2019;39(4):40;

Bohan A., Shalloo L , Creighton, P. ,Earle E., Boland T.M. and McHugh N (2018) Investigating the role of stocking rate and prolificacy potential on profitability of grass based sheep production systems. Livestock Science 2018 210 118-124

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.

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.



Lisa McGrane