World's Best Scientists 2026 revealed!

D-Index & Metrics

Animal Science and Veterinary

D-Index
39
Citations
5585
World Ranking
1290
National Ranking
379

J. A. Nienaber 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 J. A. Nienaber 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: 121 publications — 40th percentile

40% of scientists in this discipline score the same or lower.

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

J. A. Nienaber 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 J. A. Nienaber 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.

Best Publications

  • Dynamic Response Indicators of Heat Stress in Shaded and Non-shaded Feedlot Cattle, Part 1: Analyses of Indicators

    T.M. Brown-Brandl;R.A. Eigenberg;J.A. Nienaber;G.L. Hahn

  • Influences of dietary protein level, amino acid supplementation and environmental temperature on performance, body composition, organ weights and total heat production of growing pigs.

    B. J. Kerr;J. T. Yen;J. A. Nienaber;R. A. Easter

  • Dynamic Response Indicators of Heat Stress in Shaded and Non-shaded Feedlot Cattle, Part 2: Predictive Relationships

    R.A. Eigenberg;T.M. Brown-Brandl;J.A. Nienaber;G.L. Hahn

  • Heat stress risk factors of feedlot heifers

    Tami M. Brown-Brandl;Roger A. Eigenberg;John A. Nienaber

  • A LITERATURE REVIEW OF SWINE HEAT PRODUCTION

    Tami M. Brown-Brandl;John A. Nienaber;Hongwei Xin;Richard S. Gates

  • Effect of level of nutrition on splanchnic blood flow and oxygen consumption in sheep.

    D. G. Burrin;C. L. Ferrell;J. H. Eisemann;R. A. Britton

  • Conservation of nitrogen in cattle feedlot waste with urease inhibitors

    Vincent H. Varel;John A. Nienaber;Harvey C. Freetly

  • Thermoregulatory responses of feeder cattle

    T.M Brown-Brandl;J.A Nienaber;R.A Eigenberg;G.L Hahn

  • Effects of plane of nutrition on organ size and fasting heat production in pigs.

    Unknown

  • Thermoregulatory profile of a newer genetic line of pigs

    T. M. Brown-Brandl;R. A. Eigenberg;John A. Nienaber;Stephen D Kachman

  • Comparison of heat tolerance of feedlot heifers of different breeds

    Tami M. Brown-Brandl;John A. Nienaber;Roger A. Eigenberg;Terry L. Mader

  • Effect of previous nutrition on body composition and maintenance energy costs of growing lambs

    Unknown

  • Potential contribution of absorbed volatile fatty acids to whole-animal energy requirement in conscious swine.

    J. T. Yen;J. A. Nienaber;D. A. Hill;W. G. Pond

  • Oxygen consumption by portal vein-drained organs and by whole animal in conscious growing swine.

    J. T. Yen;J. A. Nienaber;D. A. Hill;W. G. Pond

  • Development of a new respiration rate monitor for cattle.

    R. A. Eigenberg;G. L. Hahn;J. A. Nienaber;T. M. Brown-Brandl

  • Thermal Environment Effects on Growing-Finishing Swine Part I—Growth, Feed Intake and Heat Production

    John A. Nienaber;G. LeRoy Hahn;J. T. Yen

  • The effects of body composition on fasting heat production in pigs.

    M. W. Tess;G. E. Dickerson;J. A. Nienaber;C. L. Ferrell

  • Effects of Plane of Nutrition on Organ Size and Fasting Heat Production in Genetically Obese and Lean Pigs

    Unknown

  • Effects of chronic environmental heat stress on blood flow and nutrient uptake of the gravid bovine uterus and foetus

    L. P. Reynolds;C. L. Ferrell;J. A. Nienaber;S. P. Ford

  • Tissue and whole-body oxygen uptake in fed and fasted steers

    Unknown

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Related Online Degrees & Career Pathways

Pursuing a degree in Animal Science and Veterinary fields opens diverse career opportunities, but many students also explore complementary disciplines to enhance their professional scope. For those interested in behavioral aspects or counseling related to animals or humans, various accredited psychology and counseling programs offer flexible online options.

Students seeking to specialize in school psychology can consider programs offering nasp accredited programs, ensuring quality education aligned with national standards. These programs prepare graduates for impactful roles supporting behavioral health in educational settings.

For advanced clinical training without the barrier of standardized tests, exploring apa accredited psyd programs can be advantageous. They offer a pathway to becoming licensed psychologists while focusing on practical skills essential in both human and veterinary psychology fields.

Additionally, professionals interested in therapeutic roles might find value in online degrees such as addiction counseling degree online and best online mft programs. These provide specialized training in counseling and therapy, broadening career options beyond traditional veterinary roles.

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