World's Best Scientists 2026 revealed!
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Animal Science and Veterinary
USA
2023

D-Index & Metrics

Animal Science and Veterinary

D-Index
69
Citations
12528
World Ranking
192
National Ranking
61

Jerry W. Spears 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 Jerry W. Spears 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: 216 publications — 78th percentile

78% of scientists in this discipline score the same or lower.

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

Jerry W. Spears 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 Jerry W. Spears 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: 69 D-Index — 94th percentile

94% 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

  • 2023 - Research.com Animal Science and Veterinary in United States Leader Award
  • 2012 - Gary L. Cromwell Award for Minerals Nutrition, American Society of Animal Science
  • 2012 - ASAS Fellow: Research Category, American Society of Animal Science
  • 1995 - American Feed Industry Association Award in Ruminant Nutrition Research, American Society of Animal Science

Overview

Jerry W. Spears is affiliated with North Carolina State University in the United States and has a research focus primarily within Agricultural and Biological Sciences. Their published work encompasses various subfields, including Plant Science, Agronomy and Crop Science, Animal Science and Zoology, Nutrition and Dietetics, and Hematology.

The scientist's research covers topics such as Ruminant Nutrition and Digestive Physiology, Rabbits: Nutrition, Reproduction, Health, Agricultural Pest Management Studies, Trace Elements in Health, Iron Metabolism and Disorders, Plant Micronutrient Interactions and Effects, and Animal Health and Immunology.

Recent papers authored or co-authored by Jerry W. Spears include:

  • Invited Review: Assessing trace mineral status in ruminants, and factors that affect measurements of trace mineral status, 2022, Applied Animal Science
  • Evaluation of a phytogenic blend fed with monensin on post-weaning growth performance, health, and sera metabolite responses during the initial 56 d feedlot receiving period in steer calves, 2024, Acta Agriculturae Scandinavica Section A - Animal Science
  • Effects of Botanical Blend of Turmeric, Capsicum, and Pepper Extracts on Colostrum and Milk Yield and Quality, Passive Transfer of Immunity, and Performance of Beef Cow-Calf Pairs, 2025, Veterinary Sciences
  • Trace Mineral Source Impacts Volatile Fatty Acid Profile and Rumen Trace Mineral Solubility in Feedlot Steers, 2025, Animals
  • Effects of a formulated botanical blend on growth performance and carcass characteristics in feedlot cattle: a pooled analysis, 2025, Acta Agriculturae Scandinavica Section A - Animal Science

Jerry W. Spears has frequently published in the following venues:

  • Acta Agriculturae Scandinavica Section A - Animal Science
  • Applied Animal Science
  • Veterinary Sciences
  • Animals

Frequent co-authors include:

  • E.H. Wall
  • Thiago Lauro Maia Ribeiro
  • Warren C Rusche
  • J. W. Spears
  • V.L.N. Brandao

Awards and recognitions received by Jerry W. Spears include:

  • ASAS Fellow: Research Category, American Society of Animal Science (2012)
  • Gary L. Cromwell Award for Minerals Nutrition, American Society of Animal Science (2012)
  • American Feed Industry Association Award in Ruminant Nutrition Research, American Society of Animal Science (1995)

Best Publications

  • Role of antioxidants and trace elements in health and immunity of transition dairy cows.

    Jerry W Spears;William P Weiss

  • Trace Mineral Bioavailability in Ruminants

    Jerry W. Spears

  • Micronutrients and immune function in cattle.

    Jerry W. Spears

  • Effect of zinc source (zinc oxide vs zinc proteinate) and level on performance, carcass characteristics, and immune response of growing and finishing steers.

    J. W. Spears;E. B. Kegley

  • Zinc methionine for ruminants: relative bioavailability of zinc in lambs and effects of growth and performance of growing heifers.

    Spears Jw

  • Organic trace minerals in ruminant nutrition

    Jerry W. Spears

  • Effects of dietary copper concentration and source on performance and copper status of growing and finishing steers.

    T. E. Engle;J. W. Spears

  • Effect of dietary trace mineral concentration and source (inorganic vs. chelated) on performance, mineral status, and fecal mineral excretion in pigs from weaning through finishing

    B. L. Creech;J. W. Spears;W. L. Flowers;G. M. Hill

  • Immune response, glucose metabolism, and performance of stressed feeder calves fed inorganic or organic chromium

    E B Kegley;J W Spears

  • Effect of shipping and chromium supplementation on performance, immune response, and disease resistance of steers.

    E B Kegley;J W Spears;T T Brown

  • Effect of dietary copper, iron, and molybdenum on growth and copper status of beef cows and calves.

    Gene P. Gengelbach;Jerry D. Ward;J. W. Spears

  • Dietary copper effects on lipid metabolism, performance, and ruminal fermentation in finishing steers.

    T E Engle;J W Spears

  • Boron Supplementation of a Semipurified Diet for Weanling Pigs Improves Feed Efficiency and Bone Strength Characteristics and Alters Plasma Lipid Metabolites

    Todd A. Armstrong;Jerry W. Spears;Thomas D. Crenshaw;Forrest H. Nielsen

  • Long-term effects of consumption of low-copper diets with or without supplemental molybdenum on copper status, performance, and carcass characteristics of cattle.

    J D Ward;J W Spears

  • The effect of early weaning on feedlot performance and measures of stress in beef calves

    J. D. Arthington;J. W. Spears;D. C. Miller

  • Effect of copper level and source (copper lysine vs copper sulfate) on copper status, performance, and immune response in growing steers fed diets with or without supplemental molybdenum and sulfur.

    J D Ward;J W Spears;E B Kegley

  • Effects of dietary copper source and concentration on carcass characteristics and lipid and cholesterol metabolism in growing and finishing steers.

    T E Engle;J W Spears;T A Armstrong;C L Wright

  • Interaction of Calcium and Phytate in Broiler Diets. 1. Effects on Apparent Prececal Digestibility and Retention of Phosphorus

    P W Plumstead;A B Leytem;R O Maguire;J W Spears

  • Inflammatory response, growth, and thyroid hormone concentrations are affected by long-term boron supplementation in gilts.

    T A Armstrong;J W Spears;K E Lloyd

  • Bioavailability of feed-grade copper sources (oxide, sulfate, or lysine) in growing cattle.

    E B Kegley;J W Spears

  • Bioavailability of zinc from zinc sulfate and different organic zinc sources and their effects on ruminal volatile fatty acid proportions

    J.W. Spears;P. Schlegel;M.C. Seal;K.E. Lloyd

  • Bioavailability of copper proteinate and copper carbonate relative to copper sulfate in cattle.

    J.D. Ward;J.W. Spears;E.B. Kegley

Frequent Co-Authors

K.E. Lloyd
K.E. Lloyd North Carolina State University
Terry E. Engle
Terry E. Engle Colorado State University
E B Kegley
E B Kegley University of Arkansas at Fayetteville
Stephanie L. Hansen
Stephanie L. Hansen Iowa State University
E. van Heugten
E. van Heugten North Carolina State University
John D. Arthington
John D. Arthington University of Florida
Jesse L. Grimes
Jesse L. Grimes North Carolina State University
Joseph C. Burns
Joseph C. Burns North Carolina State University
Gerald B. Huntington
Gerald B. Huntington North Carolina State University
Judith R. Stabel
Judith R. Stabel Agricultural Research Service

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