Richard Dewhurst

Prof

  • Crichton Estate, SAC Consulting, Heston House

    DG1 4TA Dumfries

    United Kingdom

1986 …2023
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Research Output 1986 2019

2019

A bio-economic model for cost analysis of alternative management strategies in beef finishing systems

Kamilaris, C., Dewhurst, RJ., Vosough Ahmadi, B., Crosson, P. & Alexander, P., 23 Sep 2019, (Accepted/In press) In : Agricultural Systems.

Research output: Contribution to journalArticle

bioeconomic models
cost analysis
finishing
beef
forage

A parsimonious software sensor for estimating the individual dynamic pattern of methane emissions from cattle

Munoz-Tamayo, R., Ramirez Agudelo, JF., Dewhurst, RJ., Miller, G., Vernon, T. & Kettle, H., Jun 2019, In : Animal. 13, 6, p. 1180-1187 8 p.

Research output: Contribution to journalArticle

Open Access
File
Methane
Sensors
Time measurement
Beef
Bins

Effect of antibiotic treatments on dairy cow methane production, milk yield and dry matter intake

Hargreaves, PR., March, MD. & Dewhurst, RJ., 9 Apr 2019, Proceedings of the British Society of Animal Science: Animal Science Fit for the Future. 1 ed. Vol. 10. 1 p. 85. (Advances in Animal Biosciences).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

methane production
dry matter intake
methane
milk yield
dairy cows
18 Downloads (Pure)

Identification of rumen microbial genes involved in pathways linked to appetite, growth and feed conversion efficiency in cattle

Lima, J., Auffret, M., Stewart, R. D., Dewhurst, RJ., Duthie, C-A., Snelling, T. J., Walker, A. W., Freeman, T. C., Watson, M. & Roehe, R., 8 Aug 2019, In : Frontiers in Genetics. 10, 701.

Research output: Contribution to journalArticle

Open Access
File
Microbial Genes
Rumen
Appetite
Microbiota
Growth
Open Access
greenhouse gas emissions
Scotland
livestock
agriculture
breeds

Prediction of methane emissions in sheep using computed tomography (CT) measurements of rumen volume

Lambe, NR., Miller, G. A., McLean, KA., Gordon, J. & Dewhurst, RJ., Apr 2019, p. 152.

Research output: Contribution to conferenceAbstract

2018
10 Citations (Scopus)
2 Downloads (Pure)

Addressing global ruminant agricultural challenges through understanding the rumen microbiome: past, present and future

Huws, SA., Creevey, C., Oyama, LB., Mizrahi, I., Denman, SE., Popova, M., Munoz-tamayo, R., Forano, E., Waters, SM., Hess, M., Tapio, I., Smidt, H., Krizsan, S., Yanez-Ruiz, DR., Belanche, A., Guan, LL., Gruninger, RJ., McAllister, T., Newbold, J., Roehe, R. & 17 others, Dewhurst, RJ., Snelling, TJ., Watson, M., Suen, G., Hart, E., Kingston-Smith, A., Scollan, N., Do Prado, RM., Pilau, E., Mantovani, HC., Attwood, GT., Edwards, JE., McEwan, N., Morrison, S., Mayorga, O., Elliott, C. & Morgavi, DP., 25 Sep 2018, In : Frontiers in Microbiology. 9, p. 21-61 33 p.

Research output: Contribution to journalReview article

Open Access
File
ruminants
rumen
livestock
microorganisms
animal breeding

An integrative framework for functional analysis of cattle rumen microbiomes

Wassan, J. T., Zheng, H., Browne, F., Bowen, J. M., Walsh, P., Roehe, R., Dewhurst, RJ., Palu, C., Kelly, B. & Wang, H., 12 Mar 2018, Proceedings of 2018 IEEE International Conference on Bioinformatics and Biomedicine. Institute of Electrical and Electronics Engineers Inc., p. 1854 1860 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Functional analysis
Nutrition
Benchmarking
Learning systems
Nitrates
60 Citations (Scopus)
4 Downloads (Pure)

Assembly of 913 microbial genomes from metagenomic sequencing of the cow rumen

Stewart, RD., Auffret, MD., Warr, A., Wiser, AH., Press, MO., Langford, KW., Liachko, I., Snelling, TJ., Dewhurst, RJ., Walker, AW., Roehe, R. & Watson, M., 28 Feb 2018, In : Nature Communications. 9, 870.

Research output: Contribution to journalArticle

Open Access
File
rumen
cows
genome
carbohydrate metabolism
cattle

Effects of dietary nitrate and lipid supplementation on the rumen microbiota associated with methane production

Bowen, J. M., Cormican, P., Lister, S. J., McCabe, M. S., Roehe, R. & Dewhurst, RJ., 9 Apr 2018.

Research output: Contribution to conferencePaper

1 Citation (Scopus)
2 Downloads (Pure)
Open Access
File
Medicago
Lolium
Rumen
Diet
Poaceae
1 Citation (Scopus)
3 Downloads (Pure)

Fat accretion measurements strengthen the relationship between feed conversion efficiency and nitrogen isotopic discrimination while rumen microbial genes contribute little

Meale, SJ., Auffret, MD., Watson, M., Morgavi, DP., Cantalapiedra-Hijar, G., Duthie, C-A., Roehe, R. & Dewhurst, RJ., 1 Mar 2018, In : Scientific Reports. 8, 1, 7 p., 3854.

Research output: Contribution to journalArticle

Open Access
File
Microbial Genes
Rumen
Nitrogen
Fats
Nitrates
10 Citations (Scopus)

Identification, comparison and validation of robust rumen microbial biomarkers for methane emissions using diverse Bos taurus breeds and basal diets

Auffret, MD., Stewart, R., Dewhurst, RJ., Duthie, C-A., Rooke, JA., Wallace, RJ., Freeman, TC., Snelling, TJ., Watson, M. & Roehe, R., 9 Jan 2018, In : Frontiers in Microbiology. 8, 15 p., 2642.

Research output: Contribution to journalArticle

Open Access
File
Rumen
Methane
Biomarkers
Diet
Metagenomics
relative abundance
methane
cattle
microbial community
bovine
1 Downloads (Pure)
Open Access
File
kale
liveweight gain
sowing date
dry matter intake
body condition
2017
7 Citations (Scopus)
9 Downloads (Pure)

Compositional mixed modelling of methane emissions and ruminal volatile fatty acids from individual cattle and multiple experiments

Palarea-Albaladejo, J., Rooke, JA., Nevison, IM. & Dewhurst, RJ., 8 Jun 2017, In : Journal of Animal Science. 95, 6, p. 2467 - 2480 14 p.

Research output: Contribution to journalArticle

Open Access
File
volatile fatty acids
methane
cattle
butyrates
concentrates
7 Citations (Scopus)
12 Downloads (Pure)

Integrated metagenomic analyses of the rumen microbiome of cattle reveals key biological mechanisms associated with methane traits

Wang, H., Zheng, H., Browne, F., Roehe, R., Dewhurst, RJ., Engel, F., Hemmje, M., Lu, X. & Walsh, P., 9 Jun 2017, In : Methods. 124, p. 108 - 119 12 p.

Research output: Contribution to journalArticle

Open Access
File
methane
rumen
cattle
genes
methane production
36 Citations (Scopus)
2 Downloads (Pure)

Invited review: Large-scale indirect measurements for enteric methane emissions in dairy cattle: a review of proxies and their potential for use in management and breeding decisions

Negussie, E., de Haas, Y., Dehareng, F., Dewhurst, RJ., Dijkstra, J., Gengler, N., Morgavi, DP., Soyeurt, H., van Gastelen, S., Yan, T. & Biscarini, F., 1 Feb 2017, In : Journal of Dairy Science. 100, 4, p. 2433 - 2453 21 p.

Research output: Contribution to journalReview article

Open Access
File
methane
dairy cattle
breeding
rumen
infrared spectroscopy
3 Citations (Scopus)

Nitrogen isotopic fractionation as a biomarker for nitrogen use efficiency in ruminants: a meta analysis

Cantalapiedra-Hijar, G., Dewhurst, RJ., Cheng, L., Cabrita, ARJ., Fonseca, AJM., Noziere, P., Makowski, D., Fouillet, H. & Ortigues-Marty, I., 29 Dec 2017, In : Animal. 12, 9, p. 1827 - 1837 11 p.

Research output: Contribution to journalArticle

Open Access
File
isotope fractionation
nutrient use efficiency
meta-analysis
ruminants
biomarkers
19 Citations (Scopus)
1 Downloads (Pure)

The rumen microbiome as a reservoir of antimicrobial resistance and pathogenicity genes is directly affected by diet in beef cattle

Auffret, MD., Dewhurst, RJ., Duthie, C-A., Rooke, JA., Wallace, RJ., Freeman, TC., Stewart, R., Watson, M. & Roehe, R., 11 Dec 2017, In : Microbiome. 5, 159

Research output: Contribution to journalArticle

Open Access
File
beef cattle
antibiotic resistance
rumen
pathogenicity
diet
2016

Analysis of rumen microbial community in cattle through the integration of metagenomic and network-based approaches

Wang, H., Zheng, H., Browne, F., Roehe, R., Dewhurst, R. J., Engel, F., Hemmje, M. & Walsh, P., 2016, 2016 Ieee International Conference on Bioinformatics and Biomedicine (Bibm).

Research output: Chapter in Book/Report/Conference proceedingChapter

A network analysis of methane and feed conversion genes in the rumen microbial community

Browne, F., Wang, H., Zheng, H., Roehe, R., Dewhurst, R. J. & Walsh, P., 2016, 2016 Ieee International Conference on Bioinformatics and Biomedicine (Bibm).

Research output: Chapter in Book/Report/Conference proceedingChapter

87 Citations (Scopus)
1 Downloads (Pure)

Bovine host genetic variation influences rumen microbial methane production with best selection criterion for low methane emitting and efficiently feed converting hosts based on metagenomic gene abundance

Roehe, R., Dewhurst, RJ., Duthie, C-A., Rooke, JA., McKain, N., Ross, DW., Hyslop, JJ., Waterhouse, A., Freeman, TC., Watson, M. & Wallace, RJ., 2016, In : PLoS Genetics. 12, 2, p. 3 - 9 7 p.

Research output: Contribution to journalArticle

Open Access
File
methane production
selection criteria
methane
rumen
genetic variation
17 Citations (Scopus)
10 Downloads (Pure)

Current available strategies to mitigate greenhouse gas emissions in livestock systems: an animal welfare perspective

Llonch, P., Haskell, MJ., Dewhurst, RJ. & Turner, SP., 13 Jul 2016, In : Animal. 11, 2, p. 274 - 284 11 p.

Research output: Contribution to journalReview article

Open Access
File
greenhouse gas emissions
animal welfare
livestock production
livestock
carbon footprint
2 Citations (Scopus)

The effect of dietary water soluble carbohydrate to nitrogen ratio on nitrogen partitioning and isotopic fractionation of lactating goats offered a high-nitrogen diet

Cheng, L., Edwards, GR., Dewhurst, RJ., Nicol, AM. & Pacheco, D., May 2016, In : Animal. 10, 5, p. 779 - 785 7 p.

Research output: Contribution to journalArticle

isotope fractionation
goats
carbohydrates
milk
nitrogen

The use of faecal NIRS to assess diet effects on digestive processes in steers

Bowen, J. M., Lister, S. J., Sanderson, R. & Dewhurst, RJ., 29 Aug 2016.

Research output: Contribution to conferenceAbstract

The use of laser diffraction to assess diet effects on faecal particle size of steers

Bowen, J. M., Sherriff, S., Lister, S. J. & Dewhurst, RJ., 29 Aug 2016.

Research output: Contribution to conferenceAbstract

2015
18 Citations (Scopus)
2 Downloads (Pure)

Associative effects of ensiling mixtures of sweet sorghum and alfalfa on nutritive value, fermentation and methane characteristics

Zhang, SJ., Chaudhry, AS., Osman, A., Shi, CQ., Edwards, GR., Dewhurst, RJ. & Cheng, L., 2015, In : Animal Feed Science and Technology. 206, p. 29 - 38

Research output: Contribution to journalArticle

Open Access
File
sweet sorghum
silage making
silage
methane
alfalfa
2 Citations (Scopus)

Effects of feed intake and genetics on tissue nitrogen-15 enrichment and feed conversion efficiency in sheep

Cheng, L., Logan, CM., Dewhurst, RJ., Hodge, S., Zhou, H. & Edwards, GR., 2015, In : Journal of Animal Science. 93, 12, p. 5849 - 5855

Research output: Contribution to journalArticle

wool
liveweight gain
feed conversion
feed intake
blood plasma

Effects of supplementing a mixed diet with echium (Echium plantagineum) oil on methanogenesis in a rumen simulation system

Amaro, P., Maia, MRG., Dewhurst, RJ., Fonseca, AJM. & Cabrita, ARJ., 2015, In : Journal of Animal and Feed Sciences. 24, 1, p. 3 - 10 8 p.

Research output: Contribution to journalArticle

Open Access
File
Echium plantagineum
Echium
methane production
rumen
oils

Use of NIRS to describe the time course of rumen fermentation of herbage

Bowen, J. M., Dewhurst, RJ. & Lister, S. J., 14 Apr 2015.

Research output: Contribution to conferencePaper

2014
4 Citations (Scopus)

Analysis of major fatty acids in milk produced from high-quality grazed pasture

Rugoho, I., Liu, Y. & Dewhurst, R. J., 15 Jul 2014, In : New Zealand Journal of Agricultural Research. 57, 3, p. 165-179

Research output: Contribution to journalArticle

pastures
fatty acids
milk
neutral detergent fiber
crude protein
4 Citations (Scopus)
grass silage
glycerol
concentrates
feces
cattle

Evaluation of faecal NIRS for describing differences in digestibility from feed restriction and realimentation

Bowen, J. M., Keogh, K., Kenny, D. A., Waters, S. M., Sanderson, R., Lister, S. J. & Dewhurst, RJ., 28 Apr 2014.

Research output: Contribution to conferenceAbstract

6 Citations (Scopus)

Nitrogen partitioning, energy use efficiency and isotopic fractionation measurements from cows differing in genetic merit fed low-quality pasture in late lactation

Cheng, L., Woodward, SL., Dewhurst, RJ., Zhou, H. & Edwards, GR., 2014, In : Animal Production Science. 54, 10, p. 1651 - 1656 6 p.

Research output: Contribution to journalArticle

Open Access
File
isotope fractionation
genetic merit
late lactation
pastures
cows
10 Citations (Scopus)

Plasma nitrogen isotopic fractionation and feed efficiency in growing beef heifers

Wheadon, N. M., McGee, M., Edwards, G. R. & Dewhurst, R. J., 14 May 2014, In : British Journal of Nutrition. 111, 9, p. 1705-1711

Research output: Contribution to journalArticle

isotope fractionation
beef cattle
feed conversion
nitrogen
heifers
6 Citations (Scopus)

Short communication: Relationship between the efficiency of utilization of feed nitrogen and 15N enrichment in casein from lactating dairy cows

Cabrita, ARJ., Fonseca, AJM. & Dewhurst, RJ., 2014, In : Journal of Dairy Science. 97, 11, p. 7225 - 7229 5 p.

Research output: Contribution to journalArticle

Open Access
File
animal communication
casein
rumen
feed conversion
dairy cows
7 Citations (Scopus)

Using archaeol to investigate the location of methanogens in the ruminant digestive tract

McCartney, C. A., Bull, I. D. & Dewhurst, R. J., Jun 2014, In : Livestock Science. 164, p. 39-45

Research output: Contribution to journalArticle

2013
24 Citations (Scopus)

Assessment of archaeol as a molecular proxy for methane production in cattle

McCartney, C. A., Bull, I. D., Yan, T. & Dewhurst, R. J., Feb 2013, In : Journal of Dairy Science. 96, 2, p. 1211-1217

Research output: Contribution to journalArticle

methane production
methane
methanogens
rumen
feces
10 Citations (Scopus)

Chemical markers for rumen methanogens and methanogenesis

McCartney, C. A., Bull, I. D. & Dewhurst, R. J., Jun 2013, In : Animal. 7, 2, p. 409-417

Research output: Contribution to journalConference article

methanogens
methane production
rumen
glycerol
feces
1 Citation (Scopus)

Effects of protein sources on concentrations of hydrogen sulphide in the rumen headspace gas of dairy cows

Fonseca, A. J. M., Cabrita, A. R. J., Pinho, L. A. O., Kim, E. J. & Dewhurst, R. J., Jan 2013, In : Animal. 7, 1, p. 75-81

Research output: Contribution to journalArticle

hydrogen sulfide
headspace analysis
protein sources
rumen
corn gluten
23 Citations (Scopus)
grass silage
corn silage
milk production
silage
legumes
7 Citations (Scopus)

Technical note: Comparison of biomarker and molecular biological methods for estimating methanogen abundance

McCartney, C. A., Bull, I. D., Waters, S. M. & Dewhurst, R. J., Dec 2013, In : Journal of Animal Science. 91, 12, p. 5724-5728

Research output: Contribution to journalArticle

methanogens
Ruminants
biomarkers
Methanobrevibacter
Biomarkers
12 Citations (Scopus)

Technical note: Nitrogen isotopic fractionation can be used to predict nitrogen-use efficiency in dairy cows fed temperate pasture

Cheng, L., Sheahan, A. J., Gibbs, S. J., Rius, A. G., Kay, J. K., Meier, S., Edwards, G. R., Dewhurst, R. J. & Roche, J. R., 2013, In : Journal of Animal Science. 91, 12

Research output: Contribution to journalArticle

9 Citations (Scopus)

The effects of dietary nitrogen to water-soluble carbohydrate ratio on isotopic fractionation and partitioning of nitrogen in non-lactating sheep

Cheng, L., Nicol, A. M., Dewhurst, R. J. & Edwards, G. R., Aug 2013, In : Animal. 7, 8, p. 1274-1279

Research output: Contribution to journalArticle

isotope fractionation
carbohydrates
sheep
urea
nitrogen
2012
6 Citations (Scopus)

Effect of grass dry matter intake and fat supplementation on progesterone metabolism in lactating dairy cows

Hutchinson, I. A., Dewhurst, R. J., Evans, A. C. O., Lonergan, P. & Butler, S. T., 2012, In : Theriogenology. 78, 4, p. 878-886

Research output: Contribution to journalArticle

22 Citations (Scopus)

Effect of supplementation with different fat sources on the mechanisms involved in reproductive performance in lactating dairy cattle

Hutchinson, I. A., Hennessy, A. A., Waters, S. M., Dewhurst, R. J., Evans, A. C. O., Lonergan, P. & Butler, S. T., 2012, In : Theriogenology. 78, 1, p. 12-27

Research output: Contribution to journalArticle

4 Citations (Scopus)

Effects of increasing levels of stearidonic acid on methane production in a rumen in vitro system

Amaro, P., Maia, M. R. G., Dewhurst, R. J., Fonseca, A. J. M. & Cabrita, A. R. J., 2012, In : Animal Feed Science and Technology. 173, 3-4, p. 252-260

Research output: Contribution to journalArticle

methane production
rumen
biohydrogenation
acids
methane
17 Citations (Scopus)