Projects per year
Professor of Ruminant Nutrition & Production Systems; Head of Beef & Sheep Research Centre (2013-2017); Head of Dairy Research and Innovation Centre (2016-date): Interim Head of Future Farming Systems Group (2016-2019); SRUC: Scotland’s Rural College.
Principal Research Officer: Teagasc, Animal and Grassland Research & Innovation Centre, Ireland. Head of Animal and Bioscience Research Department: (2009 to 2013).
Professor of Dairy Production: Lincoln University, New Zealand.
Senior Research Scientist (1993-1999), then Principal Research Scientist (1999-2005): IGER, Aberystwyth, UK. This appointment included periods as Group Leader: Feeding Strategies (1994-1995); Acting Head: Ruminant Nutrition Department (1995); Group Leader: Ruminant Nutrition (1996-2002); Team Leader: Nutrition and Microbiology (2002-2005).
Lecturer/Adviser Grade 3: Grassland and Ruminant Science Department, Scottish Agricultural College, UK. Honorary Lecturer: University of Glasgow.
Research Assistant Grade 1A: Department of Animal Husbandry, University of Bristol, UK.
Non-Executive Director of Agri-EPI Centre Ltd.: Agri-Tech Innovation Centre for precision agriculture and engineering.
- Substantial academic contributions at the interfaces between dairy nutrition, milk composition and rumen function - notably modelling of forage composition, dry cow feeding strategies, forages and fatty acids, fatty acids and fertility, and rumen diagnostics.
- Some work used directly by the animal feed industry – notably feed evaluation systems, feed values and dry cow strategies. Much more of my work has been used by farmers and advisers – notably to develop advice and models to predict and increase forage intakes, improve the utilisation of feed protein (reduce N pollution), improve milk composition, and facilitate the use of forage legumes in conventional and organic farming.
- Current research is developing markers/proxies for digestive efficiency, feed efficiency and greenhouse gas emissions by ruminants – including through the use of gene-centric and 16S-based rumen metagenomics, as well as Nitrogen isotopic fractionation.
MSc Animal Nutrition.
Main Supervisor for 3 PhD students and Associate Supervisor for 8 PhD students.
External examiner (or Opponent) for PhDs awarded by Universities in: UK, Ireland, Belgium, Finland, Sweden, Denmark, Australia and New Zealand.
PhD, University of Bristol
Oct 1984 → Dec 1989
Award Date: 1 Dec 1989
Bachelor, University of Oxford
Oct 1981 → May 1984
Award Date: 31 May 1984
British Society of Animal Science2015 → 20192014 → …2014 → 20172012
Animal (journal)2006 → 2016
New Zealand Society of Animal Production2006 → 20082003 → 20052002 → 2008
The Nutrition Society1997 → 2001
British Society of Animal Science1993 → 2019
Precision Livestock Farming (PLF) Technologies to reduce greenhouse gas (GHG) emissions intensity of pasture-based cattle systems
1/10/19 → 30/09/22
Elucidating bovine host genomic links with rumen microbial genes to improve sustainably feed conversion efficiency using unique selection criteria
1/05/19 → 31/10/22
1/03/18 → 31/03/23
Unravelling the Role of Rumen Microbial Communities, Genes, and Activities on Milk Fatty Acid Profile Using a Combination of Omics ApproachesStergiadis, S., Cabeza-Luna, I., Mora-Ortiz, M., Stewart, R. D., Dewhurst, R. J., Humphries, D. J., Watson, M., Roehe, R. & Auffret, M. D., 21 Jan 2021, In: Frontiers in Microbiology. 11, 590441.
Research output: Contribution to journal › Article › peer-reviewOpen AccessFile
A bio-economic model for cost analysis of alternative management strategies in beef finishing systemsKamilaris, C., Dewhurst, RJ., Vosough Ahmadi, B., Crosson, P. & Alexander, P., Apr 2020, In: Agricultural Systems. 180, 102713.
Research output: Contribution to journal › Article › peer-reviewOpen AccessFile1 Citation (Scopus)2 Downloads (Pure)
A heat diffusion multilayer network approach for the identification of functional biomarkers in rumen methane emissionsWang, M., Wang, H., Zheng, H., Dewhurst, RJ. & Roehe, R., 15 Oct 2020, In: Methods. 10 p., 2020.09.014 .
Research output: Contribution to journal › Article › peer-review
Dewhurst, R. J. & Roehe, R., Jul 2020, In: IEEE Transactions on Nanobioscience. 19, 3, p. 518-526 9 p.
Research output: Contribution to journal › Article › peer-reviewOpen AccessFile2 Citations (Scopus)12 Downloads (Pure)
A multilayer co-occurrence network reveals the systemic difference of diet-based rumen microbiome associated with methane yield phenotypeWang, M., Wang, H., Zheng, H., Dewhurst, R. J. & Roehe, R., 16 Dec 2020, Proceedings - 2020 IEEE International Conference on Bioinformatics and Biomedicine, BIBM 2020. Park, T., Cho, Y-R., Hu, X. T., Yoo, I., Woo, H. G., Wang, J., Facelli, J., Nam, S. & Kang, M. (eds.). Institute of Electrical and Electronics Engineers Inc., p. 2855-2860 6 p. 9313098. (Proceedings - 2020 IEEE International Conference on Bioinformatics and Biomedicine, BIBM 2020).
Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review