Personal profile
External positions
Principal Investigator, VistaMilk SFI Research Centre
UCC Futures (primary)
- Sustainability Institute
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Collaborations and top research areas from the last five years
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Herbage nitrogen uptake in grass-only and grass-white clover swards receiving zero nitrogen
Murray, Á., Delaby, L., Burchill, W., Fitzpatrick, E., McCarthy, B. & Hennessy, D., Apr 2026, In: Nutrient Cycling in Agroecosystems.Research output: Contribution to journal › Article › peer-review
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Sensory profile and drivers of liking of grass-fed and total mixed ration butters
McGuinness, L., Timlin, M., Hogan, S. A., O'Callaghan, T. F., Murphy, J. P., Hennessy, D., O'Donovan, M., Fitzpatrick, E., McCarthy, K., O'Riordan, E. D., Brodkorb, A. & Feeney, E. L., Mar 2026, In: Food Quality and Preference. 137, 105813.Research output: Contribution to journal › Article › peer-review
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Effect of proportion of pasture in the cow diet and seasonality on the milk metabolome as determined by 1H-NMR
Rojas-Gómez, P., Pariyani, R., Bateman, L. M., Lynch, D., Timlin, M., Dineen, M., McCarthy, N. A., Brodkorb, A., Maguire, A. R., O'Donovan, M., Hennessy, D., Murphy, T. B., O'Mahony, J. A. & O'Callaghan, T. F., May 2025, In: Journal of Dairy Science. 108, 5, p. 4659-4673 15 p.Research output: Contribution to journal › Article › peer-review
Open Access -
Evaluating the effect of white clover inclusion and dairy cow genetic merit on enteric methane emissions within rotational grazing systems
Dwan, C., Hennessy, D., Irish, H., Shalloo, L., Buckley, F., Delaby, L., Galvin, N. & Lahart, B., Sep 2025, In: Journal of Dairy Science. 108, 9, p. 9844-9860 17 p.Research output: Contribution to journal › Article › peer-review
Open Access -
Evaluating the rumen microbial community of genetically divergent spring-calving dairy cows grazing grass-only or grass-clover swards at different stages of the grazing season
Dwan, C., Das, A., O'Toole, P. W., O'Callaghan, T. F., Meehan, D., Hennessy, D., Irish, H., Buckley, F. & Lahart, B., 2025, In: Frontiers in Microbiology. 16, p. 1642486Research output: Contribution to journal › Article › peer-review
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27th General Meeting of the European Grassland Federation:Sustainable milk and meat production from grasslands
Hennessy, D. (Organiser)
17 Jun 2018Activity: Participating in or organising an event › Organising a conference, workshop, ...
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Irish Journal of Agricultural and Food Research (Journal)
Hennessy, D. (Senior Editor)
2018 → …Activity: Publication peer-review and editorial work › Editorial work
Press/Media
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Dairygold awards bursaries to UCC Agricultural Science students
Buckley, F., Knights, A., Loftus, S. U. & Hennessy, D.
28/03/26
1 item of Media coverage
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Dairygold awards bursaries to UCC Agricultural Science students
Buckley, F., Knights, A., Loftus, S. U. & Hennessy, D.
23/03/26
1 item of Media coverage
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Three dairy diets compared for maximum rumen function and production
19/05/25
1 item of Media coverage
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The lucky charm of sustainability: How St. Patrick's Day clover helps the environment
17/03/25
1 item of Media coverage
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Dairygold awards bursaries to UCC Agricultural Science students
Knights, A., Loftus, S. U., Hennessy, D. & Buckley, F.
10/03/25
1 item of Media coverage
Press/Media