World's Best Scientists 2026 revealed!

D-Index & Metrics

Animal Science and Veterinary

D-Index
27
Citations
3072
World Ranking
2790
National Ranking
791

R. M. Thallman 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 R. M. Thallman 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: 92 publications — 22nd percentile

22% of scientists in this discipline score the same or lower.

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

R. M. Thallman 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 R. M. Thallman 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: 27 D-Index — 13th percentile

13% of scientists in this discipline score the same or lower.

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

Overview

R. M. Thallman is affiliated with the US Department of Agriculture in the United States and has contributed extensively to research in the fields of biochemistry, genetics, molecular biology, and agricultural and biological sciences. Their work spans genetics, agronomy and crop science, molecular biology, animal science and zoology, and small animal studies.

The scientist's research primarily addresses genetic and phenotypic traits in livestock, reproductive physiology in livestock, and genetic mapping and diversity in both plants and animals. Other significant topics include ruminant nutrition and digestive physiology, effects of environmental stressors on livestock, animal behavior and welfare studies, and cancer-related molecular mechanisms research.

Recent publications by R. M. Thallman include:

  • Digestive tract microbiota of beef cattle that differed in feed efficiency, 2020, Journal of Animal Science
  • Heritability and genetic correlations of feed intake, body weight gain, residual gain, and residual feed intake of beef cattle as heifers and cows, 2020, Journal of Animal Science
  • Genetic parameters, heterosis, and breed effects for body condition score and mature cow weight in beef cattle, 2022, Journal of Animal Science
  • Breed and heterotic effects for mature weight in beef cattle, 2021, Journal of Animal Science
  • Breeding Sustainable Beef Cows: Reducing Weight and Increasing Productivity, 2022, Animals

Frequent co-authors in their collaborative work include:

  • L. A. Kuehn
  • W. M. Snelling
  • H. C. Freetly
  • Matthew L Spangler
  • J. W. Keele

The main publication venues for R. M. Thallman's research consist of:

  • Journal of Animal Science
  • Animals
  • Translational Animal Science
  • Zenodo (CERN European Organization for Nuclear Research)

Best Publications

  • Validation of commercial DNA tests for quantitative beef quality traits.

    A. L. Van Eenennaam;J. Li;R. M. Thallman;R. L. Quaas

  • Association of markers in the bovine CAPN1 gene with meat tenderness in large crossbred populations that sample influential industry sires.

    B. T. Page;E. Casas;R. L. Quaas;R. M. Thallman

  • Genome-wide association study of growth in crossbred beef cattle.

    W. M. Snelling;M. F. Allan;J. W. Keele;L. A. Kuehn

  • A genome scan for loci affecting pork quality in a Duroc–Landrace F2 population

    G. A. Rohrer;R. M. Thallman;S. Shackelford;T. Wheeler

  • Predicting breed composition using breed frequencies of 50,000 markers from the US Meat Animal Research Center 2,000 Bull Project.

    L. A. Kuehn;J. W. Keele;G. L. Bennett;T. G. McDaneld

  • Contribution of genetic influences to animal-to-animal variation in myoglobin content and beef lean color stability.

    D. A. King;S. D. Shackelford;L. A. Kuehn;C. M. Kemp

  • Initial results of genomic scans for ovulation rate in a cattle population selected for increased twinning rate.

    S. M. Kappes;G. L. Bennett;J. W. Keele;S. E. Echternkamp

  • Comparison of molecular breeding values based on within- and across-breed training in beef cattle

    Stephen D Kachman;Matthew L Spangler;Gary L Bennett;Kathryn J Hanford

  • Partial-genome evaluation of postweaning feed intake and efficiency of crossbred beef cattle.

    W. M. Snelling;M. F. Allan;J. W. Keele;L. A. Kuehn

  • Increased calf production in cattle selected for twin ovulations.

    S. E. Echternkamp;R. M. Thallman;R. A. Cushman;M. F. Allan

  • Germplasm evaluation in beef cattle-cycle IV: Postweaning growth and puberty of heifers

    R M Thallman;L V Cundiff;K E Gregory;R M Koch

  • Estimation of breed-specific heterosis effects for birth, weaning, and yearling weight in cattle.

    Lauren N. Schiermiester;R. M. Thallman;Larry Kuehn;Stephen D Kachman

  • PHYSIOLOGY AND ENDOCRINOLOGY SYMPOSIUM: How single nucleotide polymorphism chips will advance our knowledge of factors controlling puberty and aid in selecting replacement beef females

    W. M. Snelling;R. A. Cushman;M. R. S. Fortes;M. R. S. Fortes;A. Reverter

  • Digestive tract microbiota of beef cattle that differed in feed efficiency

    Harvey C Freetly;Aaron Dickey;Amanda K Lindholm-Perry;Richard M Thallman

  • Association of a single nucleotide polymorphism in SPP1 with growth traits and twinning in a cattle population selected for twinning rate.

    M. F. Allan;R. M. Thallman;R. A. Cushman;S. E. Echternkamp

  • Accuracy of genomic breeding values in multibreed beef cattle populations derived from deregressed breeding values and phenotypes

    K. L. Weber;R. M. Thallman;J. W. Keele;W. M. Snelling

  • Effect of bovine respiratory disease and overall pathogenic disease incidence on carcass traits

    M. D. Garcia;R. M. Thallman;T. L. Wheeler;S. D. Shackelford

  • Efficient computation of genotype probabilities for loci with many alleles: I. Allelic peeling.

    R M Thallman;G L Bennett;J W Keele;S M Kappes

  • Efficient computation of genotype probabilities for loci with many alleles: II. Iterative method for large, complex pedigrees.

    R. M. Thallman;G. L. Bennett;J. W. Keele;S. M. Kappes

  • Heritability and genetic correlations of feed intake, body weight gain, residual gain, and residual feed intake of beef cattle as heifers and cows.

    Harvey C Freetly;Larry A Kuehn;Richard M Thallman;Warren M Snelling

  • Confirmation of quantitative trait loci using a low-density single nucleotide polymorphism map for twinning and ovulation rate on bovine chromosome 5,

    M. F. Allan;L. A. Kuehn;R. A. Cushman;W. M. Snelling

  • Characterization of biological types of cattle (Cycle VII): influence of postpartum interval and estrous cycle length on fertility.

    R. A. Cushman;M. F. Allan;R. M. Thallman;L. V. Cundiff

  • Birth and weaning traits in crossbred cattle from Hereford, Angus, Brahman, Boran, Tuli, and Belgian Blue sires

    E. Casas;R. M. Thallman;L. V. Cundiff

  • Effects of ovulation rate and fetal number on fertility in twin-producing cattle.

    S. E. Echternkamp;R. A. Cushman;M. F. Allan;R. M. Thallman

  • Evaluation of associations between prion haplotypes and growth, carcass, and meat quality traits in a Dorset × Romanov sheep population,

    B. J. Isler;B. A. Freking;R. M. Thallman;M. P. Heaton

  • μ-Calpain, calpastatin, and growth hormone receptor genetic effects on preweaning performance, carcass quality traits, and residual variance of tenderness in Angus cattle selected to increase minor haplotype and allele frequencies.

    R. G. Tait;S. D. Shackelford;T. L. Wheeler;D. A. King

Frequent Co-Authors

Larry A. Kuehn
Larry A. Kuehn Agricultural Research Service
Gary L. Bennett
Gary L. Bennett Agricultural Research Service
John W. Keele
John W. Keele Agricultural Research Service
Eduardo Casas
Eduardo Casas Agricultural Research Service
Harvey C. Freetly
Harvey C. Freetly Agricultural Research Service
Timothy P. L. Smith
Timothy P. L. Smith Agricultural Research Service
Larry V. Cundiff
Larry V. Cundiff Agricultural Research Service
Tad S. Sonstegard
Tad S. Sonstegard Recombinetics (United States)
Steven D. Shackelford
Steven D. Shackelford Agricultural Research Service
James O. Sanders
James O. Sanders Texas A&M University

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Related Online Degrees & Career Pathways

For those interested in Animal Science and Veterinary studies, exploring related online degrees can enhance career prospects and specialization options. Programs such as an online exercise science degree provide a strong foundation in physiology and biomechanics, complementing veterinary knowledge with a focus on animal and human movement.

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Exploring these related fields can significantly broaden career pathways, offering various opportunities in animal science, behavior therapy, and veterinary mental health.

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