C. J. Callahan

1.3k total citations
35 papers, 995 citations indexed

About

C. J. Callahan is a scholar working on Agronomy and Crop Science, Genetics and Animal Science and Zoology. According to data from OpenAlex, C. J. Callahan has authored 35 papers receiving a total of 995 indexed citations (citations by other indexed papers that have themselves been cited), including 30 papers in Agronomy and Crop Science, 14 papers in Genetics and 8 papers in Animal Science and Zoology. Recurrent topics in C. J. Callahan's work include Reproductive Physiology in Livestock (29 papers), Genetic and phenotypic traits in livestock (12 papers) and Effects of Environmental Stressors on Livestock (7 papers). C. J. Callahan is often cited by papers focused on Reproductive Physiology in Livestock (29 papers), Genetic and phenotypic traits in livestock (12 papers) and Effects of Environmental Stressors on Livestock (7 papers). C. J. Callahan collaborates with scholars based in United States. C. J. Callahan's co-authors include R.E. Erb, H.A. Garverick, R.D. Randel, J.A. Pennington, J.L. Albright, B. L. Brown, Boon P. Chew, P.V. Malven, V.F. Colenbrander and A. H. Surve and has published in prestigious journals such as American Journal of Respiratory and Critical Care Medicine, Journal of Dairy Science and Journal of Animal Science.

In The Last Decade

C. J. Callahan

35 papers receiving 892 citations

Peers

C. J. Callahan
W. D. Oxender United States
Gy. Huszenicza Hungary
R Slepetis United States
G.C.B. Randall Canada
P. G. Weston United States
Y. Zbinden Switzerland
M. C. Lucy United States
M. D. Whitacre United States
M.C. Garcia United States
S. K. Webel United States
W. D. Oxender United States
C. J. Callahan
Citations per year, relative to C. J. Callahan C. J. Callahan (= 1×) peers W. D. Oxender

Countries citing papers authored by C. J. Callahan

Since Specialization
Citations

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

Fields of papers citing papers by C. J. Callahan

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of C. J. Callahan

This figure shows the co-authorship network connecting the top 25 collaborators of C. J. Callahan. A scholar is included among the top collaborators of C. J. Callahan 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 C. J. Callahan. C. J. Callahan 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.
Peraza, Natalia, Mariel S. Bello, Sara J. Schiff, et al.. (2021). Drug and alcohol dependence acute effects of pod-style e-cigarettes in vaping-naïve smokers. Drug and Alcohol Dependence. 228. 109083–109083. 2 indexed citations
2.
Taglauer, Elizabeth S., Gregory Seedorf, C. J. Callahan, et al.. (2020). Perinatal Hypoxia-Inducible Factor Stabilization Preserves Lung Alveolar and Vascular Growth in Experimental Bronchopulmonary Dysplasia. American Journal of Respiratory and Critical Care Medicine. 202(8). 1146–1158. 35 indexed citations
3.
Kyle, Stuart, C. J. Callahan, & R. D. Allrich. (1992). Effect of Progesterone on the Expression of Estrus at the First Postpartum Ovulation in Dairy Cattle. Journal of Dairy Science. 75(6). 1456–1460. 40 indexed citations
4.
Callahan, C. J. & Luke Horstman. (1987). Treatment of early postpartum metritis in a dairy herd. The Bovine Practitioner. 124–128. 8 indexed citations
5.
Pennington, J.A. & C. J. Callahan. (1986). Use of Mount Detectors Plus Chalk as an Estrous Detection Aid for Dairy Cattle. Journal of Dairy Science. 69(1). 248–252. 5 indexed citations
6.
Pennington, J.A., et al.. (1985). Effect of Preinsemination Injection of Gonadotropin-Releasing Hormone on Reproductive Performance of Dairy Cattle. The Bovine Practitioner. 14–16. 15 indexed citations
7.
Pennington, J.A., J.L. Albright, M. A. Diekman, & C. J. Callahan. (1985). Sexual Activity of Holstein Cows: Seasonal Effects. Journal of Dairy Science. 68(11). 3023–3030. 54 indexed citations
8.
Horstman, Luke, et al.. (1982). Ovariectomy as a means of abortion and control of estrus in feedlot heifers. Theriogenology. 17(3). 273–292. 15 indexed citations
9.
10.
Colenbrander, V.F., et al.. (1979). Variables associated with peripartum traits in dairy cows. III. Effect of diets and disorders on certain blood traits. Theriogenology. 11(3). 261–272. 8 indexed citations
11.
12.
Erb, R.E., et al.. (1976). Dietary Urea for Dairy Cattle. II. Effect on Functional Traits. Journal of Dairy Science. 59(4). 656–667. 24 indexed citations
13.
Erb, R.E., et al.. (1976). Estrogen, Progesterone, Prolactin and Other Changes Associated with Bovine Lactation Induced with Estradiol-17β and Progesterone. Journal of Animal Science. 42(3). 644–654. 59 indexed citations
14.
Kesler, D.J., R. C. Peterson, R.E. Erb, & C. J. Callahan. (1976). Concentrations of Hormones in Blood and Milk during and after Induction of Parturition in Beef Cattle with Dexamethasone and Estradiol-17β2. Journal of Animal Science. 42(4). 918–926. 36 indexed citations
15.
Erb, R.E., H.A. Garverick, R.D. Randel, B. L. Brown, & C. J. Callahan. (1976). Profiles of reproductive hormones associated with fertile and nonfertile inseminations of dairy cows. Theriogenology. 5(5). 227–242. 114 indexed citations
16.
17.
Randel, R.D., C. J. Callahan, R.E. Erb, H.A. Garverick, & B. L. Brown. (1972). Effect of Melengestrol Acetate on Plasma Progesterone, Luteinizing Hormone and Total Corticoids in Dairy Heifers. Journal of Animal Science. 35(2). 389–397. 11 indexed citations
18.
Callahan, C. J., R.E. Erb, A. H. Surve, & R.D. Randel. (1971). Variables Influencing Ovarian Cycles in Postpartum Dairy Cows. Journal of Animal Science. 33(5). 1053–1059. 54 indexed citations
19.
Hunter, Deborah L., R.E. Erb, R.D. Randel, et al.. (1970). Reproductive Steroids in the Bovine. I. Relationships during Late Gestation. Journal of Animal Science. 30(1). 47–59. 34 indexed citations
20.
Albright, J.L., et al.. (1969). INFLUENCE OF NARROW AND WIDE BORE MILKING MACHINE INFLATIONS ON ABNORMAL MILK AND UDDER HEALTH1. Journal of Milk and Food Technology. 32(6). 224–225. 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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2026