Emily Roskam
Ruminant Nutrition Research Officer – Animal and Bioscience Research DepartmentResearch Interests
Ruminant nutrition, Methane mitigation, Feed efficiency.
Current areas of research include:
- In vitro rumen fermentation – RUSITEC, batch culture
- Dietary supplementation strategies to mitigate methane production
- Genotype and nutritional effects on methane emissions
- Feed efficiency
- Microbiome analysis
- Rumen fermentation and digestibility
Current Projects
Presently working on a number of projects focusing on mitigating enteric methane emissions including a large DAFM funded project, Methane Abatement in Grassland Systems (MAGS; 2023RP904) assessing the effects of methane predicted transmitting ability and diet and their interactions on methane emissions in a calf-to-beef production system; Global Research Alliance funded Feed Additive Flagship Project assessing the anti-methanogenic potential of a number of dietary supplementation strategies in beef cattle; Beef-Efficiency – understanding the biological drivers of feed efficiency and environmental efficiency in dairy, dairy-beef and beef cattle. Also, actively involved in other aspects of the beef cattle research programme within the animal and grassland research programme.
Education
- Doctor of Philosophy, University of Galway (2020-2024)
- Professional certificate in Bioinformatics, University College Dublin (2023)
- Bachelor of Agricultural Science, Animal Science, University College Dublin (2016 – 2020)
Career
- 2025-present: Ruminant nutrition research officer (Permanent), Teagasc Grange
- 2024-2025: Walsh Scholars Development Officer (Contract), Teagasc Oakpark
- 2020-2024: PhD researcher, Teagasc Grange and University of Galway
Roskam, E., Kirwan, S. F., Kenny, D. A., O’Donnell, C., O’Flaherty, V., Hayes, M. & Waters, S. M. 2022. Effect of brown and green seaweeds on diet digestibility, ruminal fermentation patterns and enteric methane emissions using the rumen simulation technique. Frontiers in Animal Science, 3. https://doi.org/10.3389/fanim.2022.1021631
O’Donnell, C., Thorn, C., Roskam, E., Friel, R., Kirwan, S.F., Waters, S.M. and O’Flaherty, V., 2024. Novel oxidising feed additives reduce in vitro methane emissions using the rumen simulation technique. Science of The Total Environment, p.171808. https://doi.org/10.1016/j.scitotenv.2024.171808
Roskam, E., O’Donnell, C., Hayes, M., Kirwan, S.F., Kenny, D.A., O’Flaherty, V., McGovern, F.M., Claffey, N. and Waters, S.M., 2024. Enteric methane emission reduction potential of natural feed supplements in ewe diets. Journal of Animal Science, p.skad421 https://doi.org/10.1093/jas/skad421
Roskam, E., Kenny, D. A., Kelly, A.K., O’Flaherty, V. & Waters, S. M, 2024. Dietary supplementation with calcium peroxide improves methane mitigation potential of finishing beef cattle. Animal, 1;18(11):101340. https://doi.org/10.1016/j.animal.2024.101340
Roskam, E., Kenny, D. A., Kelly, A. K., Hayes, M., Palevich, N., Maclean, P., O’Flaherty, V., Biswas, A. and Waters, S. M. (2025) Animal performance, emissions, rumen fermentation, muscle fatty acids, and rumen microbiome in beef bulls supplemented with linseed oil or Ascophyllum nodosum. Journal of Animal Science, Vol 103, skaf032, https://doi.org/10.1093/jas/skaf032
Waters, S. M., Roskam, E., Smith, P. E., Kenny, D. A., Popova, M., Eugene, M. and Morgavi, D. P. (2025) International Symposium on Ruminant Physiology: The role of rumen microbiome in the development of methane mitigation strategies for ruminant livestock. Journal of Dairy Science, Vol 108, Issue 7, P7591-7606, https://doi.org/10.3168/jds.2024-25778
Folliard, N. T., Waters, S. M., Roskam, E., O’Flaherty, V. and Kenny, D. A. (2026) Inclusion of rapeseed cake or oil in the diet of beef cattle reduces enteric methane emissions without affecting animal performance. Animal, 101780, https://doi.org/10.1016/j.animal.2026.101780