Timothy J. Hackmann

1.2k total citations
41 papers, 876 citations indexed

About

Timothy J. Hackmann is a scholar working on Agronomy and Crop Science, Molecular Biology and Genetics. According to data from OpenAlex, Timothy J. Hackmann has authored 41 papers receiving a total of 876 indexed citations (citations by other indexed papers that have themselves been cited), including 23 papers in Agronomy and Crop Science, 14 papers in Molecular Biology and 9 papers in Genetics. Recurrent topics in Timothy J. Hackmann's work include Ruminant Nutrition and Digestive Physiology (23 papers), Genetic and phenotypic traits in livestock (9 papers) and Reproductive Physiology in Livestock (7 papers). Timothy J. Hackmann is often cited by papers focused on Ruminant Nutrition and Digestive Physiology (23 papers), Genetic and phenotypic traits in livestock (9 papers) and Reproductive Physiology in Livestock (7 papers). Timothy J. Hackmann collaborates with scholars based in United States, Brazil and Germany. Timothy J. Hackmann's co-authors include J.L. Firkins, J.N. Spain, Junyi Tao, David Kamanda Ngugi, J. Sampson, A.T. Adesogan, Ibukun M Ogunade, C.R. Staples, John P. Driver and Bo Zhang and has published in prestigious journals such as Proceedings of the National Academy of Sciences, SHILAP Revista de lepidopterología and Bioinformatics.

In The Last Decade

Timothy J. Hackmann

39 papers receiving 849 citations

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name h Career Trend Papers Cites
Timothy J. Hackmann United States 16 457 275 134 113 89 41 876
Jinzhen Jiao China 18 576 1.3× 352 1.3× 151 1.1× 47 0.4× 53 0.6× 55 913
Amrutlal K. Patel India 16 208 0.5× 376 1.4× 116 0.9× 73 0.6× 33 0.4× 73 758
Xuezhi Ding China 20 423 0.9× 695 2.5× 474 3.5× 109 1.0× 77 0.9× 98 1.5k
Jennifer L. Rychlik United States 10 666 1.5× 346 1.3× 176 1.3× 61 0.5× 25 0.3× 12 1.2k
Amanda Warr United Kingdom 8 258 0.6× 537 2.0× 175 1.3× 177 1.6× 22 0.2× 13 958
Sarah J. Meale Australia 18 830 1.8× 288 1.0× 165 1.2× 138 1.2× 19 0.2× 53 1.2k
Guangbin Liu China 18 161 0.4× 311 1.1× 130 1.0× 107 0.9× 130 1.5× 73 1.0k
Johanna O. Zeitz Germany 18 374 0.8× 114 0.4× 116 0.9× 129 1.1× 20 0.2× 40 777
C.X. Pei China 18 716 1.6× 133 0.5× 191 1.4× 47 0.4× 17 0.2× 72 911
J. D. Fulford United States 7 482 1.1× 201 0.7× 116 0.9× 49 0.4× 10 0.1× 8 618

Countries citing papers authored by Timothy J. Hackmann

Since Specialization
Citations

This map shows the geographic impact of Timothy J. Hackmann'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 Timothy J. Hackmann with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Timothy J. Hackmann more than expected).

Fields of papers citing papers by Timothy J. Hackmann

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Timothy J. Hackmann. 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 Timothy J. Hackmann. The network helps show where Timothy J. Hackmann may publish in the future.

Co-authorship network of co-authors of Timothy J. Hackmann

This figure shows the co-authorship network connecting the top 25 collaborators of Timothy J. Hackmann. A scholar is included among the top collaborators of Timothy J. Hackmann based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Timothy J. Hackmann. Timothy J. Hackmann is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

20 of 20 papers shown
1.
Hackmann, Timothy J.. (2025). Setting new boundaries of 16S rRNA gene identity for prokaryotic taxonomy. INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY. 75(4). 8 indexed citations
2.
Hackmann, Timothy J.. (2024). The vast landscape of carbohydrate fermentation in prokaryotes. FEMS Microbiology Reviews. 48(4). 4 indexed citations
3.
Hackmann, Timothy J., et al.. (2024). Culture techniques for ciliate protozoa from the rumen: Recent advances and persistent challenges. Anaerobe. 87. 102865–102865. 3 indexed citations
4.
Hackmann, Timothy J., et al.. (2023). The phenotype and genotype of fermentative prokaryotes. Science Advances. 9(39). eadg8687–eadg8687. 8 indexed citations
5.
Hackmann, Timothy J. & Payam Vahmani. (2023). Perspective: How to address the root cause of milk fat depression in dairy cattle. Journal of Dairy Science. 106(12). 8173–8176. 2 indexed citations
6.
Hackmann, Timothy J.. (2023). New biochemical pathways for forming short-chain fatty acids during fermentation in rumen bacteria. SHILAP Revista de lepidopterología. 5(3). 230–235. 10 indexed citations
7.
Zhang, Bo, et al.. (2023). The oxidoreductase activity of Rnf balances redox cofactors during fermentation of glucose to propionate in Prevotella. Scientific Reports. 13(1). 16429–16429. 14 indexed citations
8.
Hackmann, Timothy J., et al.. (2020). Postprandial Blood Glucose and Insulin Responses of Horses to Feeds Differing in Soluble Fiber Concentration. Journal of Equine Veterinary Science. 88. 102963–102963. 7 indexed citations
9.
Hackmann, Timothy J.. (2019). Accurate estimation of microbial sequence diversity with Distanced. Bioinformatics. 36(3). 728–734. 4 indexed citations
10.
Pech-Cervantes, Andres A, Ibukun M Ogunade, Yun Jiang, et al.. (2019). Exogenous fibrolytic enzymes and recombinant bacterial expansins synergistically improve hydrolysis and in vitro digestibility of bermudagrass haylage. Journal of Dairy Science. 102(9). 8059–8073. 7 indexed citations
11.
12.
Hackmann, Timothy J., et al.. (2017). Ruminal bacteria and protozoa composition, digestibility, and amino acid profile determined by multiple hydrolysis times. Journal of Dairy Science. 100(9). 7211–7226. 16 indexed citations
13.
14.
Hackmann, Timothy J. & J.L. Firkins. (2015). Maximizing efficiency of rumen microbial protein production. Frontiers in Microbiology. 6. 465–465. 122 indexed citations
15.
Yang, Guan, Bianca L. Artiaga, Timothy J. Hackmann, et al.. (2015). Targeted disruption of CD1d prevents NKT cell development in pigs. Mammalian Genome. 26(5-6). 264–270. 20 indexed citations
16.
Hackmann, Timothy J.. (2013). Responses of Rumen Microbes to Excess Carbohydrate. OhioLink ETD Center (Ohio Library and Information Network). 5 indexed citations
17.
Hackmann, Timothy J., et al.. (2013). Evaluation of methods to detect changes in reserve carbohydrate for mixed rumen microbes. Journal of Microbiological Methods. 93(3). 284–291. 12 indexed citations
18.
Hackmann, Timothy J., J. Sampson, & J.N. Spain. (2010). Variability in in situ ruminal degradation parameters causes imprecision in estimated ruminal digestibility. Journal of Dairy Science. 93(3). 1074–1085. 6 indexed citations
19.
Hackmann, Timothy J. & J.N. Spain. (2010). Invited review: Ruminant ecology and evolution: Perspectives useful to ruminant livestock research and production. Journal of Dairy Science. 93(4). 1320–1334. 105 indexed citations
20.
Hackmann, Timothy J. & J.N. Spain. (2009). A mechanistic model for predicting intake of forage diets by ruminants1. Journal of Animal Science. 88(3). 1108–1124. 5 indexed citations

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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