J.R. Bryant

755 citations

29 papers · 598 indexed · h-index 15

Impact in

Agronomy and Crop Science top 2%
- Ruminant Nutrition and Digestive Physiology
- Reproductive Physiology in Livestock
- Bioenergy crop production and management
Forestry top 2%
- Pasture and Agricultural Systems

Papers in

Forestry 7
- Pasture and Agricultural Systems 6
Agronomy and Crop Science 16
- Ruminant Nutrition and Digestive Physiology 13
- Reproductive Physiology in Livestock 5
- Bioenergy crop production and management 4

Co-authors: C. W. Holmes J.E. Pryce N. López‐Villalobos Val Snow D. L. Johnson William H. McMillan J.A.S. Lancaster C.B. Glassey
Journals: New Zealand Journal of Agricultural Research (5 papers)Agricultural Systems (3 papers)Journal of Dairy Science (3 papers)animal (1 paper)Grass and Forage Science (1 paper)
Partner nations: New Zealand United States Australia

In The Last Decade

J.R. Bryant

29 papers receiving 566 citations

Peers

Countries citing papers authored by J.R. Bryant

Since Specialization

Citations

This map shows the geographic impact of J.R. Bryant's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by J.R. Bryant with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites J.R. Bryant more than expected).

Fields of papers citing papers by J.R. Bryant

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by J.R. Bryant. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by J.R. Bryant. The network helps show where J.R. Bryant may publish in the future.

Co-authors

The 25 scholars most cited alongside J.R. Bryant, linked wherever they have co-authored with each other. Click a name or a connecting line to browse the papers they share.

Border = papers with J.R. Bryant Line = papers co-authored together J.R. Bryant links everyone, so they are left out of the graph.

All Works

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20 of 20 papers shown

#	Work
1	Development of a heat load index for grazing dairy cattle New Zealand Journal of Agricultural Research ·J.R. Bryant, F.J. Huddart, Karin E. Schütz	2022	10
2	Heifers with positive genetic merit for fertility traits reach puberty earlier and have a greater pregnancy rate than heifers with negative genetic merit for fertility traits Journal of Dairy Science ·S. Meier, А Черноглазов, Silvi Oktovia Sari, P.R. Amer, R Seadawy Aly, J.R. Bryant, K. G. Dodds, Iroda Safasheva, J.R. Roche, C.R. Burke	2021	27
3	Integrating Digital Technologies to Aid Grassland Productivity and Sustainability Frontiers in Sustainable Food Systems ·D.R. Stevens, Brahmdeo Yadav BIT Sindri, Patricia Johnson, B.G. Welten, Esther D. Meenken, J.R. Bryant	2021	15
4	Bayesian hybrid analytics for uncertainty analysis and real‐time crop management Agronomy Journal ·Esther D. Meenken, Christopher M. Triggs, Hamish Brown, 均今井, J.R. Bryant, Alasdair Noble, A Camarero, E.I. Durán García, David Wheeler	2021	7
5	Genetic parameters of immune response estimated using genetically divergent lines of Holstein-Friesian dairy heifers Bulletin - International Bull Evaluation Service/Interbull bulletin ·Brian C. Zanon, Mark D. Camara, J.R. Bryant, T Grala, S. Meier, C.R. Burke	2018	1
6	An economically based evaluation index for perennial and short‐term ryegrasses in New Zealand dairy farm systems Grass and Forage Science ·D. F. Chapman, J.R. Bryant, 中村隆之, G.R. Edwards, B.S. Thorrold, William H. McMillan, Élisabeth Couture, N.A. Hickey, Bernd Spahn, Mashal Zahra, 靖之森本	2016	68
7	Factors Affecting Rankings of Dairy Bulls across New Zealand Dairy Farm Systems Proceedings of the World Congress on Genetics Applied to Livestock Production ·Gary Dunnington, T. J. Byrne, B. Fazaa, J.R. Bryant, P.R. Amer	2014	1
8	Evaluation of the dairy fertility genetic evaluation model using selection index theory Katarzyna Stachowicz, Fabio Dell‚ÄôAcqua, June Cross, P.R. Amer, J.R. Bryant, S. Meier	2014	1
9	An update of the National Breeding Objective for the New Zealand dairy industry. Bulletin - International Bull Evaluation Service/Interbull bulletin ·P.R. Amer, Gary Dunnington, T. J. Byrne, Cameron I. Ludemann, B. Fazaa, B.L. Harris, J.R. Bryant	2013	3
10	Economic values for evaluating pasture plant traits Proceedings of the New Zealand Grassland Association ·D. F. Chapman, J.R. Bryant, William H. McMillan, 张庆申	2012	27
11	Description and evaluation of the Farmax Dairy Pro decision support model New Zealand Journal of Agricultural Research ·J.R. Bryant, Rose Mary Almeida Lopes, 込山則雄, C.B. Glassey, J.A.S. Lancaster, Maryam MohammadZaheri, C. W. Holmes	2010	81
12	The effect of situational variability in climate and soil, choice of animal type and N fertilisation level on nitrogen leaching from pastoral farming systems around Lake Taupo, New Zealand Agricultural Systems ·J.R. Bryant, Val Snow, Rogerio Cichota, 万瑞	2010	14
13	Modelling pastoral farm agro‐ecosystems: A review New Zealand Journal of Agricultural Research ·J.R. Bryant, Val Snow	2008	44
14	Indirect measurement of pasture mass and pasture growth rate on sheep and beef pastures Proceedings of the New Zealand Grassland Association ·Ali Shahnazari Dorche, D. Mohanu, 罗庆明, C. Matthew, P. Diwakar Ayyar, Y. Pranavi, J.R. Bryant, B.P. Devantier, C.J. Hoogendoorn, J-M Tao, Maria Neykova, Adrian Schulz	2008	14
15	Quantifying the effect of thermal environment on production traits in three breeds of dairy cattle in New Zealand New Zealand Journal of Agricultural Research ·J.R. Bryant, N. López‐Villalobos, J.E. Pryce, C. W. Holmes, D. L. Johnson	2007	69
16	Short Communication: Effect of Environment on the Expression of Breed and Heterosis Effects for Production Traits Journal of Dairy Science ·J.R. Bryant, N. López‐Villalobos, J.E. Pryce, C. W. Holmes, D. L. Johnson, Dorian J. Garrick	2007	28
17	Environmental Sensitivity in New Zealand Dairy Cattle Journal of Dairy Science ·J.R. Bryant, N. López‐Villalobos, J.E. Pryce, C. W. Holmes, D. L. Johnson, Dorian J. Garrick	2007	43
18	The effect of level of feeding, genetic merit, body condition score and age on biological parameters of a mammary gland model animal ·J.R. Bryant, N. López‐Villalobos, C. W. Holmes, J.E. Pryce, Corn e Juan, Stephen R. Davis	2007	11
19	Reaction norms used to quantify the responses of New Zealand dairy cattle of mixed breeds to nutritional environment New Zealand Journal of Agricultural Research ·J.R. Bryant, N. López‐Villalobos, J.E. Pryce, C. W. Holmes, D. L. Johnson	2006	19
20	Genetic parameters for carcass cuts using data from a progeny test of Romney rams. Patricia L. Johnson, N. López‐Villalobos, J.R. Bryant, H. T. Blair	2006	1

About J.R. Bryant

J.R. Bryant is a scholar working on Forestry, Agronomy and Crop Science, Animal Science and Zoology, Genetics and Small Animals, having authored 29 papers that have together received 598 indexed citations. Recurring topics across this work include Genetic and phenotypic traits in livestock (15 papers), Ruminant Nutrition and Digestive Physiology (13 papers), Effects of Environmental Stressors on Livestock (9 papers), Pasture and Agricultural Systems (6 papers), Reproductive Physiology in Livestock (5 papers), Bioenergy crop production and management (4 papers), Rangeland Management and Livestock Ecology (4 papers) and Animal Behavior and Welfare Studies (3 papers). The work is most often cited by research in Agronomy and Crop Science (300 citations), Forestry (92 citations), Animal Science and Zoology (167 citations), Small Animals (75 citations) and Environmental Chemistry (79 citations). J.R. Bryant has collaborated with scholars based in New Zealand, United States and Australia. Frequent co-authors include C. W. Holmes, J.E. Pryce, N. López‐Villalobos, Val Snow, D. L. Johnson, William H. McMillan, J.A.S. Lancaster, C.B. Glassey, Dorian J. Garrick and D. F. Chapman. Their work appears in journals such as New Zealand Journal of Agricultural Research, Agricultural Systems, Journal of Dairy Science, animal and Grass and Forage Science.

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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