World's Best Scientists 2026 revealed!

D-Index & Metrics

Animal Science and Veterinary

D-Index
40
Citations
5921
World Ranking
1181
National Ranking
351

R.W. Hemken 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.W. Hemken 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: 133 publications — 47th percentile

47% of scientists in this discipline score the same or lower.

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

R.W. Hemken 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.W. Hemken 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: 40 D-Index — 64th percentile

64% of scientists in this discipline score the same or lower.

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

Research.com Recognitions

  • 1964 - Fellow of the American Association for the Advancement of Science (AAAS)

Overview

R.W. Hemken is affiliated with the University of Kentucky in the United States. Their professional profile is defined by a career in scientific research, although specific details on their fields of study, topics of work, and publication record are limited in available data.

The scientist has been recognized as a Fellow of the American Association for the Advancement of Science (AAAS), an honor received in 1964. This fellowship indicates a level of professional acknowledgment within the scientific community during that period.

Due to limited information on published works, coauthors, and research topics, an in-depth analysis of research contributions or areas of expertise cannot be provided. There are no listed recent papers, frequent coauthors, publication venues, or main topics of study documented in the data available.

The absence of data on book publications and subfields of study further restricts detailed insight into the breadth of their academic involvement. However, their affiliation with a major research university suggests participation in academic activities and research programs associated with that institution.

The available record indicates that R.W. Hemken remains living. No additional information regarding recent research or ongoing projects is present, limiting the current scope of their academic profile.

Best Publications

  • Influence of addition of yeast culture supplement to diets of lactating cows on ruminal fermentation and microbial populations.

    G.A. Harrison;R.W. Hemken;K.A. Dawson;R.J. Harmon

  • Influence of Dietary Cation-Anion Balance on Milk, Blood, Urine, and Rumen Fluid in Lactating Dairy Cattle

    W.B. Tucker;G.A. Harrison;R.W. Hemken

  • Analytical Estimates of Nitrogen Digestibility in Heat Damaged Forages

    H.K. Goering;H.K. Goering;C.H. Gordon;C.H. Gordon;R.W. Hemken;R.W. Hemken;D.R. Waldo;D.R. Waldo

  • Dietary Sodium Bicarbonate and Magnesium Oxide for Early Postpartum Lactating Dairy Cows: Effects of Production, Acid-Based Metabolism, and Digestion

    R.A. Erdman;R.W. Hemken;L.S. Bull

  • Interaction of environmental temperature and anti-quality factors on the severity of summer fescue toxicosis.

    R. W. Hemken;J. A. Boling;L. S. Bull;R. H. Hatton

  • Effects of copper status on neutrophil function, superoxide dismutase, and copper distribution in steers.

    Z. Xin;D.F. Waterman;R.W. Hemken;R.J. Harmon

  • Suppression of milk production during endotoxin-induced mastitis.

    D.E. Shuster;R.J. Harmon;J.A. Jackson;R.W. Hemken

  • Protein Reserves in the Lactating Dairy Cow

    R.L. Botts;R.W. Hemken;L.S. Bull

  • Effect of dietary sodium bicarbonate and magnesium oxide on production and physiology in early lactation.

    R.A. Erdman;R.L. Botts;R.W. Hemken;L.S. Bull

  • Role of sulfur and chloride in the dietary cation-anion balance equation for lactating dairy cattle.

    W B Tucker;W B Tucker;J F Hogue;J F Hogue;D F Waterman;D F Waterman;T S Swenson;T S Swenson

  • Bovine prolactin, TSH, T and T concentrations as affected by tall fescue summer toxicosis and temperature.

    W. L. Hurley;E. M. Convey;K. Leung;L. A. Edgerton

  • Relative susceptibility of forages to heat damage as affected by moisture, temperature, and pH

    H.K. Goering;P.J. Van Soest;R.W. Hemken

  • Toxic Factors in Tall Fescue

    R. W. Hemken;J. A. Jackson;J. A. Boling

  • Copper metabolism of holstein and jersey cows and heifers fed diets high in cupric sulfate or copper proteinate.

    Z. Du;R.W. Hemken;R.J. Harmon

  • Degradation of Supplemental Proteins in the Rumen

    R. A. Zinn;L. S. Bull;R. W. Hemken

  • Summer fescue toxicosis in lactating dairy cows and sheep fed experimental strains of ryegrass-tall fescue hybrids.

    Hemken Rw;Bull Ls;Boling Ja;Kane E

  • Utilization of copper in copper proteinate, copper lysine, and cupric sulfate using the rat as an experimental model.

    Z Du;R W Hemken;J A Jackson;D S Trammell

  • Prevalence of minor udder pathogens after intramammary dry treatment.

    R.J. Harmon;W.L. Crist;R.W. Hemken;B.E. Langlois

  • Reducing Heat Stress in Dairy Cows Through Sprinkler and Fan Cooling

    Unknown

  • Performance of lactating dairy cows fed tall fescue forage.

    S.R. Strahan;R.W. Hemken;J.A. Jackson;R.C. Buckner

  • Summer Fescue Toxicity in Dairy Steers Fed Tall Fescue Seed

    James A. Jackson;R. W. Hemken;J. A. Boling;R. J. Harmon

  • Possible role of beta-carotene in improving fertility in dairy cattle.

    R.W. Hemken;D.H. Bremel

  • Three protein percentages on nitrogen balance, body weight change, milk production and composition of lactating cows during early lactation

    R. C. Sparrow;R. W. Hemken;D. R. Jacobson;F. S. Button

  • Mineral Nutrition, Calcium, Phosphorus, Magnesium, and Potassium Interrelationships

    D.R. Jacobson;R.W. Hemken;F.S. Button;R.H. Hatton

Frequent Co-Authors

Robert J. Harmon
Robert J. Harmon University of Kentucky
Lowell P. Bush
Lowell P. Bush University of Kentucky
Malcolm R. Siegel
Malcolm R. Siegel University of Kentucky
Richard A. Erdman
Richard A. Erdman University of Maryland, College Park
Karl A. Dawson
Karl A. Dawson University of Kentucky
James D. Ferguson
James D. Ferguson University of Pennsylvania
J.G. Linn
J.G. Linn University of Minnesota
William Chalupa
William Chalupa University of Pennsylvania
D.E. Otterby
D.E. Otterby University of Minnesota

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Related Online Degrees & Career Pathways

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