J.R. Knapp

1.8k total citations · 1 hit paper
24 papers, 1.4k citations indexed

About

J.R. Knapp is a scholar working on Agronomy and Crop Science, Genetics and Molecular Biology. According to data from OpenAlex, J.R. Knapp has authored 24 papers receiving a total of 1.4k indexed citations (citations by other indexed papers that have themselves been cited), including 12 papers in Agronomy and Crop Science, 9 papers in Genetics and 7 papers in Molecular Biology. Recurrent topics in J.R. Knapp's work include Ruminant Nutrition and Digestive Physiology (11 papers), Reproductive Physiology in Livestock (6 papers) and Animal Genetics and Reproduction (5 papers). J.R. Knapp is often cited by papers focused on Ruminant Nutrition and Digestive Physiology (11 papers), Reproductive Physiology in Livestock (6 papers) and Animal Genetics and Reproduction (5 papers). J.R. Knapp collaborates with scholars based in United States, Switzerland and Poland. J.R. Knapp's co-authors include Peter A. Vadas, J.M. Tricárico, W.P. Weiss, M.D. Hanigan, John J. Kopchick, Sebastian I. Arriola Apelo, Yuesheng Li, Jeffrey H. White, C.J. Sniffen and S.M. Emanuele and has published in prestigious journals such as Journal of Nutrition, Journal of Dairy Science and Biochemical Pharmacology.

In The Last Decade

J.R. Knapp

24 papers receiving 1.3k citations

Hit Papers

align trajectories

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

Invited review: Enteric methane in dairy cattle production: Quantifying the opportunities and impact of reducing emissions

2014 714 citations J.R. Knapp, Peter A. Vadas et al. Journal of Dairy Science profile →

Peers

Countries citing papers authored by J.R. Knapp

Since Specialization

Citations

This map shows the geographic impact of J.R. Knapp'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. Knapp 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. Knapp more than expected).

Fields of papers citing papers by J.R. Knapp

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of J.R. Knapp

This figure shows the co-authorship network connecting the top 25 collaborators of J.R. Knapp. A scholar is included among the top collaborators of J.R. Knapp 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 J.R. Knapp. J.R. Knapp is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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20 of 20 papers shown

#	Work	Indexed citations
1	Proceedings of the 2023 Meeting of the Animal Science Modelling Group 2024 ·Canadian Journal of Animal Science ·E. Kebreab, J.P. Cant, J.R. Knapp	1
2	Estimates of calf starter energy affected by consumption of nutrients. 2. Effect of changing digestion on energy content in calf starters 2019 ·Journal of Dairy Science ·J.D. Quigley, W. Hu, J.R. Knapp, T.S. Dennis, F.X. Suárez-Mena, T.M. Hill	22
3	Estimates of calf starter energy affected by consumption of nutrients. 1. Evaluation of models to predict changing digestion on energy content in calf starters 2019 ·Journal of Dairy Science ·J.D. Quigley, W. Hu, J.R. Knapp, T.S. Dennis, F.X. Suárez-Mena, T.M. Hill	9
4	Relationships between starch concentration of dry feed, diet digestibility, and growth of dairy calves up to 16 weeks of age 2018 ·Journal of Dairy Science ·W. Hu, T.M. Hill, T.S. Dennis, F.X. Suárez-Mena, J.D. Quigley, J.R. Knapp, R.L. Schlotterbeck	23
5	Effects of wortmannin, sodium nitroprusside, insulin, genistein, and guanosine triphosphate on chemotaxis and cell growth of Entodinium caudatum, Epidinium caudatum, and mixed ruminal protozoa 2014 ·Journal of Dairy Science ·(unknown), J.R. Knapp, S.K.R. Karnati, B. A. Dehority, J.L. Firkins	7
6	Invited review: Current representation and future trends of predicting amino acid utilization in the lactating dairy cow 2014 ·Journal of Dairy Science ·Sebastian I. Arriola Apelo, J.R. Knapp, M.D. Hanigan	101
7	Invited review: Enteric methane in dairy cattle production: Quantifying the opportunities and impact of reducing emissions breakdown → 2014 ·Journal of Dairy Science ·J.R. Knapp, (unknown), Peter A. Vadas, W.P. Weiss, J.M. Tricárico	714
8	Effects of jugular-infused lysine, methionine, and branched-chain amino acids on milk protein synthesis in high-producing dairy cows 2011 ·Journal of Dairy Science ·J.A.D.R.N. Appuhamy, J.R. Knapp, (unknown), Javier I. Escobar, M.D. Hanigan	82
9	Dairy Diet Phosphorus and Rainfall Timing Effects on Runoff Phosphorus from Land‐Applied Manure 2009 ·Journal of Environmental Quality ·(unknown), William E. Jokela, J.R. Knapp	27
10	Comparison of Contractile Responses in Isolated Mouse Aorta and Pulmonary Artery 2006 ·Journal of Cardiovascular Pharmacology ·J.R. Knapp, (unknown), Felix Balzer, Ulrich Gergs, Wilhelm Schmitz, Joachim Neumann	4
11	Effects of a Polymer-Coated Urea Product on Nitrogen Metabolism in Lactating Holstein Dairy Cattle 2003 ·Journal of Dairy Science ·(unknown), S.M. Emanuele, C.J. Sniffen, Jeffrey H. White, J.R. Knapp	109
12	Enlargement of Interscapular Brown Adipose Tissue in Growth Hormone Antagonist Transgenic and in Growth Hormone Receptor Gene-Disrupted Dwarf Mice 2003 ·Experimental Biology and Medicine ·Yuesheng Li, J.R. Knapp, John J. Kopchick	76
13	Physical and Mechanical Characteristics of Tibias from Transgenic Mice Expressing Mutant Bovine Growth Hormone Genes 2001 ·Experimental Biology and Medicine ·Nancy D. Turner, J.R. Knapp, F. M. Byers, John J. Kopchick	5
14	Expression of Mutant Bovine Growth Hormone Genes in Mice Perturbs Age-Related Nutrient Utilization Patterns 1998 ·Journal of Nutrition ·Nancy D. Turner, J.R. Knapp, F. M. Byers, John J. Kopchick	10
15	Consequences of Overexpression of Growth Hormone in Transgenic Mice on Liver Cytochrome P450 Enzymes 1998 ·Biochemical Pharmacology ·(unknown), Sonia Q. Doi, J.R. Knapp, (unknown), John J. Kopchick, Alvito P. Alvares	8
16	The Use of Transgenic Mice in Nutrition Research 1994 ·Journal of Nutrition ·J.R. Knapp, John J. Kopchick	7
17	Growth patterns and body composition of transgenic mice expressing mutated bovine somatotropin genes1 1994 ·Journal of Animal Science ·J.R. Knapp, (unknown), Nancy D. Turner, F. M. Byers, John J. Kopchick	39
18	In vitro and in vivo development of bovine embryos from zygotes and 2-cell embryos microinjected with exogenous DNA 1994 ·Theriogenology ·Jolanta Jura, John J. Kopchick, (unknown), Thomas E. Wagner, Jacek A. Modliński, Michael A. Reed, J.R. Knapp, Z. Smorąg	5
19	Development of a mechanistic model of liver metabolism in the lactating cow 1993 ·Agricultural Systems ·H. C. Freetly, J.R. Knapp, C. C. Calvert, R.L. Baldwin	27
20	Effects of Somatotropin and Substrates on Patterns of Liver Metabolism in Lactating Dairy Cattle, 1992 ·Journal of Dairy Science ·J.R. Knapp, H. C. Freetly, (unknown), C. C. Calvert, R.L. Baldwin	64

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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