D. E. Ullrey

6.1k total citations · 2 hit papers
156 papers, 4.6k citations indexed

About

D. E. Ullrey is a scholar working on Animal Science and Zoology, Nutrition and Dietetics and Agronomy and Crop Science. According to data from OpenAlex, D. E. Ullrey has authored 156 papers receiving a total of 4.6k indexed citations (citations by other indexed papers that have themselves been cited), including 51 papers in Animal Science and Zoology, 43 papers in Nutrition and Dietetics and 28 papers in Agronomy and Crop Science. Recurrent topics in D. E. Ullrey's work include Animal Nutrition and Physiology (47 papers), Selenium in Biological Systems (20 papers) and Trace Elements in Health (20 papers). D. E. Ullrey is often cited by papers focused on Animal Nutrition and Physiology (47 papers), Selenium in Biological Systems (20 papers) and Trace Elements in Health (20 papers). D. E. Ullrey collaborates with scholars based in United States, Kenya and Puerto Rico. D. E. Ullrey's co-authors include E. R. Miller, W. T. Magee, J. A. Hoefer, Ibrahim H. Zeitoun, R. W. Luecke, P. K. Ku, P. A. Whetter, Werner G. Bergen, John L. Gill and Paul S. Brady and has published in prestigious journals such as Science, Journal of Agricultural and Food Chemistry and Journal of Nutrition.

In The Last Decade

D. E. Ullrey

151 papers receiving 3.9k 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.

The Pig as a Model for Human Nutrition

1987 538 citations E. R. Miller, D. E. Ullrey profile →
Quantifying Nutrient Requirements of Fish

1976 403 citations Ibrahim H. Zeitoun, D. E. Ullrey et al. Journal of the Fisheries Research Board of Canada profile →

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
D. E. Ullrey United States	35	1.4k	1.3k	657	654	636	156	4.6k
M. C. Nesheim United States	33	1.8k 1.3×	972 0.7×	438 0.7×	770 1.2×	506 0.8×	164	4.5k
C. B. Ammerman United States	33	2.5k 1.9×	1.7k 1.2×	307 0.5×	334 0.5×	1.5k 2.3×	147	6.2k
S. Hurwitz Israel	44	4.5k 3.3×	580 0.4×	996 1.5×	466 0.7×	756 1.2×	225	6.7k
Werner G. Bergen United States	35	1.6k 1.1×	459 0.3×	512 0.8×	219 0.3×	285 0.4×	146	4.8k
P. R. Henry United States	26	2.0k 1.5×	1.1k 0.8×	178 0.3×	269 0.4×	1.2k 1.9×	76	4.8k
F. J. Schwarz Germany	32	813 0.6×	499 0.4×	734 1.1×	160 0.2×	321 0.5×	156	3.1k
A. J. Lewis United States	38	3.2k 2.4×	754 0.6×	233 0.4×	306 0.5×	564 0.9×	154	4.6k
E. R. Miller United States	34	1.7k 1.3×	1.1k 0.8×	135 0.2×	140 0.2×	679 1.1×	108	3.5k
Gerhard Flachowsky Germany	37	1.6k 1.2×	852 0.6×	220 0.3×	697 1.1×	1.9k 3.0×	356	6.0k
Thomas D. Crenshaw United States	35	1.6k 1.2×	740 0.5×	207 0.3×	159 0.2×	374 0.6×	133	3.6k

Countries citing papers authored by D. E. Ullrey

Since Specialization

Citations

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

Fields of papers citing papers by D. E. Ullrey

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of D. E. Ullrey

This figure shows the co-authorship network connecting the top 25 collaborators of D. E. Ullrey. A scholar is included among the top collaborators of D. E. Ullrey 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 D. E. Ullrey. D. E. Ullrey 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

Ullrey, D. E., C. K. Baer, & Wilson G. Pond. (2004). Encyclopedia of Animal Science. 6 indexed citations

Baer, David J., Olav T. Oftedal, William V. Rumpler, & D. E. Ullrey. (1997). Dietary Fiber Influences Nutrient Utilization, Growth and Dry Matter Intake of Green Iguanas (Iguana iguana) ,. Journal of Nutrition. 127(8). 1501–1507. 10 indexed citations

Ullrey, D. E., et al.. (1996). DIET, CAST COMPOSITION, AND ENERGY AND NUTRIENT INTAKE OF RED-TAILED HAWKS (BUTEO JAMAICENSIS), GREAT HORNED OWLS (BUBO VIRGINIANUS), AND TURKEY VULTURES (CATHARTES AURA). Journal of Zoo and Wildlife Medicine. 27(2). 187–196. 15 indexed citations

Ullrey, D. E., Mary E. Allen, & David J. Baer. (1991). Formulated Diets versus Seed Mixtures for Psittacines. Journal of Nutrition. 121(11 Suppl). S193–S205. 48 indexed citations

Stowe, Howard D., et al.. (1988). Responses of Dairy Cattle to Long-Term and Short-Term Supplementation with Oral Selenium and Vitamin E. Journal of Dairy Science. 71(7). 1830–1839. 44 indexed citations

Ullrey, D. E.. (1987). Biochemical and Physiological Indicators of Selenium Status in Animals. Journal of Animal Science. 65(6). 1712–1726. 49 indexed citations

Brady, Paul S., Linda J. Brady, Maddy Parsons, D. E. Ullrey, & Elwyn R. Miller. (1979). Effects of Riboflavin Deficiency on Growth and Glutathione Peroxidase System Enzymes in the Baby Pig. Journal of Nutrition. 109(9). 1615–1622. 14 indexed citations

Ku, P. K., et al.. (1979). Copper Requirement of Baby Pigs Fed Purified Diets. Journal of Nutrition. 109(6). 939–948. 21 indexed citations

Brady, Paul S., Linda J. Brady, D. E. Ullrey, & Dale R. Romsos. (1978). Interrelationships of Erythrocyte Glutathione Peroxidase System Enzymes in the Fasted Beagle. American Journal of Veterinary Research. 39(2). 267–270. 2 indexed citations

10.

Brady, Paul S., P. A. Whetter, D. E. Ullrey, Linda J. Brady, & L. D. Fay. (1978). The Effect of Dietary Selenium and Vitamin E on Biochemical Parameters and Survival of Young Among White-Tailed Deer (Odocoileus virginianus). Journal of Nutrition. 108(9). 1439–1448. 22 indexed citations

11.

Brady, Paul S., et al.. (1977). Rapid Changes in Equine Erythrocyte Glutathione Reductase with Exercise. American Journal of Veterinary Research. 38(7). 1045–1047. 3 indexed citations

12.

Zeitoun, Ibrahim H., D. E. Ullrey, Werner G. Bergen, & W. T. Magee. (1977). DNA, RNA, Protein, and Free Amino Acids During Ontogenesis of Rainbow Trout (Salmo gairdneri). Journal of the Fisheries Research Board of Canada. 34(1). 83–88. 24 indexed citations

13.

Zeitoun, Ibrahim H., D. E. Ullrey, John E. Halver, Peter I. Tack, & W. T. Magee. (1974). Influence of Salinity on Protein Requirements of Coho Salmon (Oncorhynchus kisutch) Smolts. Journal of the Fisheries Research Board of Canada. 31(6). 1145–1148. 26 indexed citations

14.

Ullrey, D. E., et al.. (1972). Disestibility and estimated metabolizability of aspen browse for white-tailed deer. Digital Commons - USU (Utah State University). 16 indexed citations

15.

Miller, E. R., et al.. (1968). Zinc Requirement of Baby Pigs on Casein Diets. Journal of Nutrition. 96(1). 101–108. 36 indexed citations

16.

Ullrey, D. E., J. Sprague, D. E. Becker, & E. R. Miller. (1965). Growth of the Swine Fetus. Journal of Animal Science. 24(3). 711–717. 59 indexed citations

17.

Ullrey, D. E., E. R. Miller, C. Long, & Bernard Vincent. (1965). Sheep Hematology from Birth to Maturity II. Leukocyte Concentration and Differential Distribution. Journal of Animal Science. 24(1). 141–144. 16 indexed citations

18.

Miller, E. R., et al.. (1965). Mineral Balance Studies with the Baby Pig: Effects of Dietary Vitamin D2 Level upon Calcium, Phosphorus and Magnesium Balance. Journal of Nutrition. 85(3). 255–259. 28 indexed citations

19.

Kornegay, E. T., E. R. Miller, B.E. Brent, et al.. (1964). Effect of Fasting and Refeeding on Body Weight, Rectal Temperature, Blood Volume and Various Blood Constituents in Growing Swine. Journal of Nutrition. 84(3). 295–304. 16 indexed citations

20.

Ullrey, D. E., et al.. (1960). The Requirement of the Baby Pig for Orally Administered Iron. Journal of Nutrition. 70(2). 187–192. 22 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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