H. D. Chapman

3.3k total citations · 1 hit paper
79 papers, 2.6k citations indexed

About

H. D. Chapman is a scholar working on Animal Science and Zoology, Small Animals and Insect Science. According to data from OpenAlex, H. D. Chapman has authored 79 papers receiving a total of 2.6k indexed citations (citations by other indexed papers that have themselves been cited), including 74 papers in Animal Science and Zoology, 53 papers in Small Animals and 7 papers in Insect Science. Recurrent topics in H. D. Chapman's work include Coccidia and coccidiosis research (73 papers), Animal Nutrition and Physiology (55 papers) and Veterinary medicine and infectious diseases (31 papers). H. D. Chapman is often cited by papers focused on Coccidia and coccidiosis research (73 papers), Animal Nutrition and Physiology (55 papers) and Veterinary medicine and infectious diseases (31 papers). H. D. Chapman collaborates with scholars based in United States, United Kingdom and Canada. H. D. Chapman's co-authors include M. W. Shirley, Sandra Noack, Paul M. Selzer, John R. Barta, Gary P. Richards, H. D. Danforth, R. B. Williams, Mark C. Jenkins, Nicholas C. Smith and T. Rathinam and has published in prestigious journals such as Antimicrobial Agents and Chemotherapy, Journal of Dairy Science and Poultry Science.

In The Last Decade

H. D. Chapman

78 papers receiving 2.4k citations

Hit Papers

Anticoccidial drugs of the livestock industry 2019 2026 2021 2023 2019 50 100 150
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.

  1. Anticoccidial drugs of the livestock industry
    2019 192 citations Sandra Noack, H. D. Chapman et al. Parasitology Research profile →

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
H. D. Chapman United States 29 2.2k 1.6k 620 189 89 79 2.6k
L. R. McDougald United States 29 2.2k 1.0× 1.5k 1.0× 857 1.4× 190 1.0× 51 0.6× 132 2.6k
R.H. Fetterer United States 28 1.2k 0.6× 1.1k 0.7× 884 1.4× 198 1.0× 131 1.5× 91 2.4k
P. C. Allen United States 19 1.1k 0.5× 562 0.4× 244 0.4× 157 0.8× 69 0.8× 35 1.4k
P. L. Long United States 31 2.6k 1.2× 1.6k 1.0× 853 1.4× 228 1.2× 54 0.6× 143 2.8k
F.A. Rojo-Vázquez Spain 27 608 0.3× 1.3k 0.9× 834 1.3× 130 0.7× 27 0.3× 99 1.9k
T. K. Jeffers United States 23 1.3k 0.6× 897 0.6× 353 0.6× 127 0.7× 32 0.4× 45 1.4k
Hubertus Hertzberg Switzerland 24 658 0.3× 1.3k 0.9× 664 1.1× 89 0.5× 17 0.2× 71 1.9k
O. Vanparijs Belgium 18 541 0.2× 796 0.5× 576 0.9× 94 0.5× 25 0.3× 53 1.5k
P. C. Augustine United States 19 982 0.4× 545 0.3× 481 0.8× 96 0.5× 21 0.2× 77 1.2k
W. Malcolm Reid United States 21 2.2k 1.0× 1.4k 0.9× 463 0.7× 284 1.5× 18 0.2× 102 2.5k

Countries citing papers authored by H. D. Chapman

Since Specialization
Citations

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

Fields of papers citing papers by H. D. Chapman

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by H. D. Chapman. 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 H. D. Chapman. The network helps show where H. D. Chapman may publish in the future.

Co-authorship network of co-authors of H. D. Chapman

This figure shows the co-authorship network connecting the top 25 collaborators of H. D. Chapman. A scholar is included among the top collaborators of H. D. Chapman 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 H. D. Chapman. H. D. Chapman 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.
Noack, Sandra, H. D. Chapman, & Paul M. Selzer. (2019). Anticoccidial drugs of the livestock industry. Parasitology Research. 118(7). 2009–2026. 192 indexed citations breakdown →
2.
Chapman, H. D.. (2018). Applied strategies for the control of coccidiosis in poultry.. CABI Reviews. 1–11. 18 indexed citations
3.
Ogedengbe, Mosun E., et al.. (2017). Phylogenies based on combined mitochondrial and nuclear sequences conflict with morphologically defined genera in the eimeriid coccidia (Apicomplexa). International Journal for Parasitology. 48(1). 59–69. 49 indexed citations
4.
Rathinam, T., U. Gadde, & H. D. Chapman. (2015). Molecular detection of field isolates of Turkey Eimeria by polymerase chain reaction amplification of the cytochrome c oxidase I gene. Parasitology Research. 114(7). 2795–2799. 5 indexed citations
5.
Rathinam, T., et al.. (2014). Biological re-description of a genetically typed, single oocyst line of the turkey coccidium, Eimeria meleagrimitis Tyzzer 1929. Parasitology Research. 113(3). 1135–1146. 14 indexed citations
6.
Chapman, H. D., John R. Barta, Damer P. Blake, et al.. (2013). A Selective Review of Advances in Coccidiosis Research. Advances in Parasitology. 83. 93–171. 203 indexed citations
7.
Gadde, U., H. D. Chapman, T. Rathinam, & GF Erf. (2011). Cellular immune responses, chemokine, and cytokine profiles in turkey poults following infection with the intestinal parasite Eimeria adenoeides. Poultry Science. 90(10). 2243–2250. 14 indexed citations
8.
Rath, N.C., Nicholas B. Anthony, Lakshmi Kannan, et al.. (2009). Serum ovotransferrin as a biomarker of inflammatory diseases in chickens. Poultry Science. 88(10). 2069–2074. 64 indexed citations
9.
Chapman, H. D.. (2009). A landmark contribution to poultry science—Prophylactic control of coccidiosis in poultry. Poultry Science. 88(4). 813–815. 67 indexed citations
10.
Gadde, U., H. D. Chapman, T. Rathinam, & Gisela F. Erf. (2009). Acquisition of immunity to the protozoan parasite Eimeria adenoeides in turkey poults and the peripheral blood leukocyte response to a primary infection. Poultry Science. 88(11). 2346–2352. 7 indexed citations
11.
Chapman, H. D., et al.. (2007). Selection for Early (Precocious) Development of Eimeria meleagridis in the Turkey. Avian Diseases. 51(1). 122–124. 5 indexed citations
12.
Chapman, H. D., et al.. (2006). Characterization of a Strain of Eimeria meleagridis from the Turkey. Avian Diseases. 50(4). 599–604. 14 indexed citations
13.
Chapman, H. D., et al.. (2004). Effect of anticoccidial medication upon broilers infected with eimeria species during the starter or grower phase of production. Journal of Dairy Science. 87. 108–108. 1 indexed citations
14.
Heuer, Sarah E., et al.. (2001). Peripheral blood leukocyte response and macrophage function during Eimeria adenoeides infection in turkey poults. Journal of the Arkansas Academy of Science. 2(1). 13–20. 1 indexed citations
15.
Chapman, H. D.. (2001). Use of Anticoccidial Drugs in Broiler Chickens in the USA: Analysis for the Years 1995 to 1999. Poultry Science. 80(5). 572–580. 42 indexed citations
16.
Chapman, H. D.. (1998). Evaluation of the efficacy of anticoccidial drugs against Eimeria species in the fowl. International Journal for Parasitology. 28(7). 1141–1144. 110 indexed citations
17.
Chapman, H. D.. (1997). Biochemical, genetic and applied aspects of drug resistance in Eimeria parasites of the fowl. Avian Pathology. 26(2). 221–244. 252 indexed citations
18.
Chapman, H. D.. (1993). Resistance to anticoccidial drugs in fowl. Parasitology Today. 9(5). 159–162. 61 indexed citations
19.
20.
Chapman, H. D.. (1960). The diagnosis and control of zinc deficiency and excess.. 105–130. 1 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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