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Animal Science and Veterinary
USA
2023

D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Animal Science and Veterinary 69 192 181 61 55 216 12528

Jerry W. Spears publications per year

The chart shows the history of publications by Jerry W. Spears between 1976 and 2025, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Jerry W. Spears published across 50 years, from 1976 to 2025, averaging 4.6 papers a year. Output peaked at 12 publications in 2000. 8 of the 232 publications appeared in the last two years.

No. of publications
5 10
Bar chart. Horizontal axis: year, 1976 to 2025. Vertical axis: number of publications, 0 to 12. Peak 12 publications in 2000. 1976: 1 publication 1977: 3 publications 1978: 4 publications 1979: 1 publication 1980: 2 publications 1981: 0 publications 1982: 0 publications 1983: 2 publications 1984: 5 publications 1985: 5 publications 1986: 5 publications 1987: 2 publications 1988: 6 publications 1989: 9 publications 1990: 3 publications 1991: 3 publications 1992: 2 publications 1993: 7 publications 1994: 8 publications 1995: 4 publications 1996: 5 publications 1997: 6 publications 1998: 2 publications 1999: 5 publications 2000: 12 publications 2001: 7 publications 2002: 9 publications 2003: 8 publications 2004: 8 publications 2005: 3 publications 2006: 7 publications 2007: 6 publications 2008: 9 publications 2009: 4 publications 2010: 8 publications 2011: 4 publications 2012: 3 publications 2013: 4 publications 2014: 1 publication 2015: 5 publications 2016: 4 publications 2017: 6 publications 2018: 0 publications 2019: 6 publications 2020: 8 publications 2021: 5 publications 2022: 1 publication 2023: 6 publications 2024: 5 publications 2025: 3 publications
1976 2025

232 publications in total across all disciplines

View publications per year as a table
Jerry W. Spears: publications per year, 1976 to 2025
Year Publications
1976 1
1977 3
1978 4
1979 1
1980 2
1981 0
1982 0
1983 2
1984 5
1985 5
1986 5
1987 2
1988 6
1989 9
1990 3
1991 3
1992 2
1993 7
1994 8
1995 4
1996 5
1997 6
1998 2
1999 5
2000 12
2001 7
2002 9
2003 8
2004 8
2005 3
2006 7
2007 6
2008 9
2009 4
2010 8
2011 4
2012 3
2013 4
2014 1
2015 5
2016 4
2017 6
2018 0
2019 6
2020 8
2021 5
2022 1
2023 6
2024 5
2025 3
Total 232
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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.

No. of scientists
25 50 75 100
Bar chart with 84 bars. Horizontal axis: publications, 29–33 to 442+. Vertical axis: number of scientists, 0 to 109. Most scientists, 109, have 119–123 publications. The last bar groups every scientist with 442 publications or more. The highlighted bar, 214–218 publications, is where this scientist sits. 29–33 publications: 1 scientist 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
29–33 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.

View publications distribution as a table
Number of Animal Science and Veterinary scientists by publication count, Research.com 2026 ranking edition. Based on 3,155 ranked scientists.
Publications Scientists This scientist
29–33 1
34–38 6
39–43 17
44–48 23
49–53 28
54–58 44
59–63 66
64–68 75
69–73 71
74–78 85
79–83 108
84–88 105
89–93 84
94–98 103
99–103 97
104–108 95
109–113 89
114–118 88
119–123 109
124–128 93
129–133 89
134–138 95
139–143 92
144–148 80
149–153 75
154–158 74
159–163 67
164–168 53
169–173 62
174–178 63
179–183 50
184–188 55
189–193 50
194–198 27
199–203 44
204–208 31
209–213 28
214–218 38 216
219–223 33
224–228 36
229–233 29
234–238 35
239–243 23
244–248 24
249–253 29
254–258 28
259–263 21
264–268 25
269–273 11
274–278 18
279–283 13
284–288 18
289–293 10
294–298 12
299–303 11
304–308 15
309–313 14
314–318 14
319–323 8
324–328 8
329–333 13
334–338 14
339–343 13
344–348 10
349–353 11
354–358 5
359–363 8
364–368 8
369–373 6
374–378 7
379–383 8
384–388 3
389–393 4
394–398 5
399–403 8
404–408 5
409–413 4
414–418 3
419–423 8
424–428 5
429–433 3
434–438 5
439–441 5
442+ 99
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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.

No. of scientists
50 100 150
Bar chart with 58 bars. Horizontal axis: D-Index, 20 to 77+. Vertical axis: number of scientists, 0 to 158. Most scientists, 158, have 31 D-Index. The last bar groups every scientist with 77 D-Index or more. The highlighted bar, 69 D-Index, is where this scientist sits. 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.

View D-Index distribution as a table
Number of Animal Science and Veterinary scientists by D-index, Research.com 2026 ranking edition. Based on 3,155 ranked scientists.
D-Index Scientists This scientist
20 5
21 22
22 31
23 44
24 53
25 66
26 80
27 101
28 106
29 116
30 154
31 158
32 143
33 137
34 126
35 134
36 112
37 115
38 105
39 111
40 107
41 87
42 74
43 62
44 61
45 41
46 51
47 43
48 28
49 47
50 40
51 34
52 33
53 43
54 16
55 32
56 21
57 18
58 28
59 33
60 17
61 21
62 18
63 21
64 9
65 20
66 11
67 16
68 12
69 17 69
70 13
71 15
72 11
73 11
74 14
75 5
76 6
77+ 100
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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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