World's Best Scientists 2026 revealed!

D-Index & Metrics

Animal Science and Veterinary

D-Index
39
Citations
6176
World Ranking
1267
National Ranking
373

Thomas W. Geary publication distribution in Animal Science and Veterinary in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Animal Science and Veterinary in 2026. The highlighted bar marks where Thomas W. Geary sits on this spectrum.

29–33 publications: 1 scientists 34–38 publications: 6 scientists 39–43 publications: 17 scientists 44–48 publications: 23 scientists 49–53 publications: 28 scientists 54–58 publications: 44 scientists 59–63 publications: 66 scientists 64–68 publications: 75 scientists 69–73 publications: 71 scientists 74–78 publications: 85 scientists 79–83 publications: 108 scientists 84–88 publications: 105 scientists 89–93 publications: 84 scientists 94–98 publications: 103 scientists 99–103 publications: 97 scientists 104–108 publications: 95 scientists 109–113 publications: 89 scientists 114–118 publications: 88 scientists 119–123 publications: 109 scientists 124–128 publications: 93 scientists 129–133 publications: 89 scientists 134–138 publications: 95 scientists 139–143 publications: 92 scientists 144–148 publications: 80 scientists 149–153 publications: 75 scientists 154–158 publications: 74 scientists 159–163 publications: 67 scientists 164–168 publications: 53 scientists 169–173 publications: 62 scientists 174–178 publications: 63 scientists 179–183 publications: 50 scientists 184–188 publications: 55 scientists 189–193 publications: 50 scientists 194–198 publications: 27 scientists 199–203 publications: 44 scientists 204–208 publications: 31 scientists 209–213 publications: 28 scientists 214–218 publications: 38 scientists 219–223 publications: 33 scientists 224–228 publications: 36 scientists 229–233 publications: 29 scientists 234–238 publications: 35 scientists 239–243 publications: 23 scientists 244–248 publications: 24 scientists 249–253 publications: 29 scientists 254–258 publications: 28 scientists 259–263 publications: 21 scientists 264–268 publications: 25 scientists 269–273 publications: 11 scientists 274–278 publications: 18 scientists 279–283 publications: 13 scientists 284–288 publications: 18 scientists 289–293 publications: 10 scientists 294–298 publications: 12 scientists 299–303 publications: 11 scientists 304–308 publications: 15 scientists 309–313 publications: 14 scientists 314–318 publications: 14 scientists 319–323 publications: 8 scientists 324–328 publications: 8 scientists 329–333 publications: 13 scientists 334–338 publications: 14 scientists 339–343 publications: 13 scientists 344–348 publications: 10 scientists 349–353 publications: 11 scientists 354–358 publications: 5 scientists 359–363 publications: 8 scientists 364–368 publications: 8 scientists 369–373 publications: 6 scientists 374–378 publications: 7 scientists 379–383 publications: 8 scientists 384–388 publications: 3 scientists 389–393 publications: 4 scientists 394–398 publications: 5 scientists 399–403 publications: 8 scientists 404–408 publications: 5 scientists 409–413 publications: 4 scientists 414–418 publications: 3 scientists 419–423 publications: 8 scientists 424–428 publications: 5 scientists 429–433 publications: 3 scientists 434–438 publications: 5 scientists 439–441 publications: 5 scientists 442+ publications: 99 scientists
29 publications 442+

This scientist: 124 publications — 42nd percentile

42% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 442 publications or more.

Thomas W. Geary D-index placement in Animal Science and Veterinary in 2026

The chart shows the D-index (discipline H-index) distribution of Animal Science and Veterinary scientists ranked by Research.com in 2026. The highlighted bar marks where Thomas W. Geary sits on this spectrum.

20 D-Index: 5 scientists 21 D-Index: 22 scientists 22 D-Index: 31 scientists 23 D-Index: 44 scientists 24 D-Index: 53 scientists 25 D-Index: 66 scientists 26 D-Index: 80 scientists 27 D-Index: 101 scientists 28 D-Index: 106 scientists 29 D-Index: 116 scientists 30 D-Index: 154 scientists 31 D-Index: 158 scientists 32 D-Index: 143 scientists 33 D-Index: 137 scientists 34 D-Index: 126 scientists 35 D-Index: 134 scientists 36 D-Index: 112 scientists 37 D-Index: 115 scientists 38 D-Index: 105 scientists 39 D-Index: 111 scientists 40 D-Index: 107 scientists 41 D-Index: 87 scientists 42 D-Index: 74 scientists 43 D-Index: 62 scientists 44 D-Index: 61 scientists 45 D-Index: 41 scientists 46 D-Index: 51 scientists 47 D-Index: 43 scientists 48 D-Index: 28 scientists 49 D-Index: 47 scientists 50 D-Index: 40 scientists 51 D-Index: 34 scientists 52 D-Index: 33 scientists 53 D-Index: 43 scientists 54 D-Index: 16 scientists 55 D-Index: 32 scientists 56 D-Index: 21 scientists 57 D-Index: 18 scientists 58 D-Index: 28 scientists 59 D-Index: 33 scientists 60 D-Index: 17 scientists 61 D-Index: 21 scientists 62 D-Index: 18 scientists 63 D-Index: 21 scientists 64 D-Index: 9 scientists 65 D-Index: 20 scientists 66 D-Index: 11 scientists 67 D-Index: 16 scientists 68 D-Index: 12 scientists 69 D-Index: 17 scientists 70 D-Index: 13 scientists 71 D-Index: 15 scientists 72 D-Index: 11 scientists 73 D-Index: 11 scientists 74 D-Index: 14 scientists 75 D-Index: 5 scientists 76 D-Index: 6 scientists 77+ D-Index: 100 scientists
20 D-Index 77+

This scientist: 39 D-Index — 61st percentile

61% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 77 D-Index or more.

Overview

Thomas W. Geary is affiliated with the Agricultural Research Service in the United States. Their research primarily focuses on fields related to Agricultural and Biological Sciences and Medicine. Key subfields include Agronomy and Crop Science, Genetics, Public Health, Environmental and Occupational Health, Reproductive Medicine, and Animal Science and Zoology.

The main topics covered in their work involve Reproductive Physiology in Livestock, Genetic and Phenotypic Traits in Livestock, Reproductive Biology and Fertility, Sperm and Testicular Function, Effects of Environmental Stressors on Livestock, Ruminant Nutrition and Digestive Physiology, and Plant and Fungal Interactions.

The scientist has published extensively, with notable frequent publication venues being:

  • Journal of Animal Science
  • Animal Reproduction Science
  • Biology of Reproduction
  • Genes
  • Frontiers in Animal Science

Among recent papers authored or coauthored by Thomas W. Geary are:

  • Differential Transcript Profiles in Cumulus-Oocyte Complexes Originating from Pre-Ovulatory Follicles of Varied Physiological Maturity in Beef Cows, 2021, Genes
  • Effect of estradiol preceding and progesterone subsequent to ovulation on proportion of postpartum beef cows pregnant, 2021, Animal Reproduction Science
  • Bull field fertility differences can be estimated with in vitro sperm capacitation and flow cytometry, 2023, Frontiers in Animal Science
  • Effect of supplemental trace minerals on standard and novel measures of bull fertility, 2021, Theriogenology
  • Influence of preovulatory estradiol treatment on the maintenance of pregnancy in beef cattle receiving in vivo produced embryos, 2023, Animal Reproduction Science

Frequent coauthors collaborating with Thomas W. Geary include:

  • George A Perry
  • Abigail L Zezeski
  • A.L. Zezeski
  • M. F. Smith
  • Jerica J J Rich

Best Publications

  • Relationship between follicle size at insemination and pregnancy success.

    George A. Perry;Michael F. Smith;Matthew C. Lucy;Jonathan A. Green

  • Relationship between size of the ovulatory follicle and pregnancy success in beef heifers.

    G. A. Perry;M. F. Smith;A. J. Roberts;M. D. MacNeil

  • Synchronization of estrus in suckled beef cows for detected estrus and artificial insemination and timed artificial insemination using gonadotropin-releasing hormone, prostaglandin F2α, and progesterone

    J. E. Larson;G. C. Lamb;J. S. Stevenson;S. K. Johnson

  • Leptin as a predictor of carcass composition in beef cattle

    T. W. Geary;E. L. McFadin;M. D. MacNeil;E. E. Grings

  • Synchronization of estrus and artificial insemination in replacement beef heifers using gonadotropin-releasing hormone, prostaglandin F2alpha, and progesterone.

    G. C. Lamb;J. E. Larson;T. W. Geary;J. S. Stevenson

  • Pregnancy rates of postpartum beef cows that were synchronized using Syncro-Mate-B or the Ovsynch protocol

    T W Geary;J C Whittier;E R Downing;D G LeFever

  • Characterization of the Vaginal Microbiota of Ewes and Cows Reveals a Unique Microbiota with Low Levels of Lactobacilli and Near-Neutral pH

    Jeffrey D. Swartz;Medora Lachman;Kelsey Westveer;Thomas O’Neill

  • Calf removal improves conception rates to the Ovsynch and CO-Synch protocols.

    T W Geary;J C Whittier;D M Hallford;M D MacNeil

  • Preovulatory estradiol and the establishment and maintenance of pregnancy in suckled beef cows.

    E. M. Jinks;M. F. Smith;J. A. Atkins;K. G. Pohler

  • Uterine influences on conceptus development in fertility-classified animals.

    Joao G N Moraes;Susanta K Behura;Thomas W Geary;Peter J Hansen

  • Effect of early gestational undernutrition on angiogenic factor expression and vascularity in the bovine placentome

    K. A. Vonnahme;M. J. Zhu;P. P. Borowicz;T. W. Geary

  • Increased Conception Rates in Beef Cattle Inseminated with Nanopurified Bull Semen

    John F. Odhiambo;J.M. DeJarnette;Thomas W. Geary;Chelsey E. Kennedy

  • Effect of copper, zinc, and manganese supplementation and source on reproduction, mineral status, and performance in grazing beef cattle over a two-year period.

    J. K. Ahola;D. S. Baker;P. D. Burns;R. G. Mortimer

  • Genetic parameter estimates for scrotal circumference and semen characteristics of Line 1 Hereford bulls.

    C. G. Kealey;M. D. MacNeil;M. W. Tess;T. W. Geary

  • Reproductive performance of heifers offered ad libitum or restricted access to feed for a one hundred forty-day period after weaning.

    A. J. Roberts;T. W. Geary;E. E. Grings;R. C. Waterman

  • Ovarian and Estrous Response of Suckled Beef Cows to the Select Synch Estrous Synchronization Protocol11This research was supported by a grant from Select Sires. The authors express their appreciation to Select Sires and to Merial, Pharmacia & Upjohn, and DDx, Inc. for their generous donations of Cystorelin, Lutalyse, and HeatWatch, respectively, and to Dave Schutz and Doug Couch at the Eastern Colorado Research Center for assistance in data collection.

    Unknown

  • Follicular determinants of pregnancy establishment and maintenance

    Ky G. Pohler;Thomas W. Geary;Jacqueline A. Atkins;George A. Perry

  • Circulating bovine pregnancy associated glycoproteins are associated with late embryonic/fetal survival but not ovulatory follicle size in suckled beef cows

    K. G. Pohler;T. W. Geary;C. L. Johnson;J. A. Atkins

  • Ability of intravaginal progesterone inserts and melengestrol acetate to induce estrous cycles in postpartum beef cows.

    G. A. Perry;M. F. Smith;T. W. Geary

  • Triennial Reproduction Symposium: deficiencies in the uterine environment and failure to support embryonic development.

    G A Bridges;M L Day;T W Geary;L H Cruppe

  • Synchronization of ovulation using GnRH or hCG with the CO-Synch protocol in suckled beef cows.

    T. W. Geary;R. R. Salverson;J. C. Whittier

  • Effects of Fertility on Gene Expression and Function of the Bovine Endometrium

    Megan A. Minten;Todd R. Bilby;Ralph G. S. Bruno;Carolyn C. Allen

  • Effects of preovulatory estradiol on embryo survival and pregnancy establishment in beef cows

    Crystal A. Madsen;Crystal A. Madsen;George A. Perry;Christina L. Mogck;Russell F. Daly

  • Pregnancy establishment and maintenance in cattle

    J. A. Atkins;M. F. Smith;M. D. MacNeil;E. M. Jinks

  • Effect of ovulatory follicle size and expression of estrus on progesterone secretion in beef cows

    D. C. Busch;J. A. Atkins;J. F. Bader;D. J. Schafer

  • Influence of seasonal forage quality on glucose kinetics of young beef cows.

    R. C. Waterman;E. E. Grings;T. W. Geary;A. J. Roberts

  • Quantitative trait loci with additive effects on palatability and fatty acid composition of meat in a Wagyu-Limousin F2 population.

    L. J. Alexander;M. D. MacNeil;T. W. Geary;W. M. Snelling

Frequent Co-Authors

Michael D. MacNeil
Michael D. MacNeil University of the Free State
Ky G. Pohler
Ky G. Pohler Texas A&M University
George A. Perry
George A. Perry Texas A&M University
Thomas E. Spencer
Thomas E. Spencer University of Missouri
José Luiz Moraes Vasconcelos
José Luiz Moraes Vasconcelos Sao Paulo State University
Jeffrey S. Stevenson
Jeffrey S. Stevenson Kansas State University
Daniel C. Rule
Daniel C. Rule University of Wyoming
Peter J. Hansen
Peter J. Hansen University of Florida
James G. Berardinelli
James G. Berardinelli Montana State University
G. C. Lamb
G. C. Lamb University of Florida

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