World's Best Scientists 2026 revealed!

D-Index & Metrics

Animal Science and Veterinary

D-Index
32
Citations
6720
World Ranking
2079
National Ranking
591

H.F. Tyrrell 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 H.F. Tyrrell 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: 68 publications — 8th percentile

8% of scientists in this discipline score the same or lower.

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

H.F. Tyrrell 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 H.F. Tyrrell 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: 32 D-Index — 34th percentile

34% of scientists in this discipline score the same or lower.

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

Overview

H.F. Tyrrell is affiliated with the United States Department of Agriculture in the United States. Their professional work is connected with this institution, indicating a focus on governmental research within agriculture or related fields.

There are no specific recent papers recorded, nor detailed information available about co-authors, publication venues, book publications, or a focused set of academic papers. This implies limited publicly indexed output or data aggregation for this researcher.

Similarly, no main fields of study, subfields, or primary research topics have been documented. This results in an absence of detailed subject matter context related to Tyrrell's research activity.

The profile does not list any awards, which suggests either the researcher has not been awarded or such information has not been cataloged.

The absence of recorded deceased status confirms that H.F. Tyrrell is currently active or living, but further career details remain sparse.

Best Publications

  • Prediction of the energy value of cow's milk.

    H.F. Tyrrell;J.T. Reid

  • Methane Production in Dairy Cows

    P.W. Moe;H.F. Tyrrell

  • Effect of Intake on Digestive Efficiency

    H.F. Tyrrell;P.W. Moe

  • Effects of diet forage-to-concentrate ratio and intake on energy metabolism in growing beef heifers : whole body energy and nitrogen balance and visceral heat production

    Christopher K. Reynolds;Henry F. Tyrrell;Paul J. Reynolds

  • Energetics of Body Tissue Mobilization

    P.W. Moe;H.F. Tyrrell;W.P. Flatt

  • Effect of bovine somatotropin on metabolism of lactating dairy cows: influence on rates of irreversible loss and oxidation of glucose and nonesterified fatty acids.

    Dale E. Bauman;Colin J. Peel;Wayne D. Steinhour;Paul J. Reynolds

  • Net portal-drained visceral and hepatic metabolism of glucose, L-lactate, and nitrogenous compounds in lactating holstein cows.

    Christopher K. Reynolds;Gerald B. Huntington;Henry F. Tyrrell;Paul J. Reynolds

  • Effects of diet forage-to-concentrate ratio and intake on energy metabolism in growing beef heifers: net nutrient metabolism by visceral tissues.

    Christopher K. Reynolds;Henry F. Tyrrell;Paul J. Reynolds

  • Net Metabolism of Volatile Fatty Acids, D-β-Hydroxybutyrate, Nonesterified Fatty Acids, and Blood Gasses by Portal-Drained Viscera and Liver of Lactating Holstein Cows,

    Christopher K. Reynolds;Gerald B. Huntington;Henry F. Tyrrell;Paul J. Reynolds

  • Effect of bovine somatotropin on metabolism of lactating dairy cows: energy and nitrogen utilization as determined by respiration calorimetry.

    Henry F. Tyrrell;A. C. G. Brown;Paul J. Reynolds;Gordon L. Haaland

  • Metabolizable Energy Requirements of Pregnant Dairy Cows

    P.W. Moe;H.F. Tyrrell

  • Blood and Milk Lipid Responses Induced by Growth Hormone Administration in Lactating Cows

    Joel Bitman;D.L. Wood;H.F. Tyrrell;D.E. Bauman

  • Effect of Bovine Growth Hormone Administration on Metabolism of Growing Hereford Heifers: Protein and Lipid Metabolism and Plasma Concentrations of Metabolites and Plasma Concentrations of Metabolites and Hormones

    Joan H. Eisemann;Andrew C. Hammond;Dale E. Bauman;Paul J. Reynolds

  • Effect of level of intake on digestibility of dietary energy by high-producing cows.

    P.W. Moe;J.T. Reid;H.F. Tyrrell

  • Effect of Bovine Growth Hormone Administration on Metabolism of Growing Hereford Heifers: Dietary Digestibility, Energy and Nitrogen Balance

    Joan H. Eisemann;Henry F. Tyrrell;Andrew C. Hammond;Paul J. Reynolds

  • Net Energy for Lactation of Calcium Salts of Long-Chain Fatty Acids for Cows Fed Silage-Based Diets,

    S.M. Andrew;H.F. Tyrrell;H.F. Tyrrell;C.K. Reynolds;C.K. Reynolds;R.A. Erdman;R.A. Erdman

  • Effect of somatotropin on kinetics of nonesterified fatty acids and partition of energy, carbon, and nitrogen in lactating dairy cows.

    Suzanne J. Sechen;Dale E. Bauman;Henry F. Tyrrell;Paul J. Reynolds

  • Energy and Protein Requirements of Milk Production

    J.T. Reid;P.W. Moe;H.F. Tyrrell

  • Effects of growth hormone-releasing factor and feed intake on energy metabolism in growing beef steers: net nutrient metabolism by portal-drained viscera and liver.

    C. K. Reynolds;H. Lapierre;H. F. Tyrrell;T. H. Elsasser

  • Net Energy Value for Lactation of a High and Low Concentrate Ration Containing Corn Silage

    H.F. Tyrrell;P.W. Moe

  • Forage Composition and Growth and Physiological Characteristics of Cattle Grazing Several Varieties of Tall Fescue During Summer Conditions

    James Bond;J. B. Powell;D. J. Undersander;P. W. Moe

  • Effect of crude protein level and limestone buffer in diets fed at two levels of intake on rumen pH, ammonia-nitrogen, buffering capacity and volatile fatty acid concentration of cattle

    G. L. Haaland;H. F. Tyrrell;P. W. Moe;W. E. Wheeler

  • Efficiency of conversion of digested energy to milk.

    P.W. Moe;H.F. Tyrrell

  • Effect of diet on partial efficiency of acetate use for body tissue synthesis by mature cattle.

    H. F. Tyrrell;P. J. Reynolds;P. W. Moe

Frequent Co-Authors

Christopher K. Reynolds
Christopher K. Reynolds University of Reading
Gerald B. Huntington
Gerald B. Huntington North Carolina State University
Dale E. Bauman
Dale E. Bauman Cornell University
Theron S. Rumsey
Theron S. Rumsey United States Department of Agriculture
Caird E. Rexroad
Caird E. Rexroad Agricultural Research Service

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Related Online Degrees & Career Pathways

For students interested in Animal Science and Veterinary studies, exploring related online degrees can broaden career opportunities. Programs such as an online exercise science degree provide foundational knowledge in physiology and health, which complement veterinary expertise, especially in rehabilitation and animal fitness.

Behavioral studies also intersect with veterinary fields. Pursuing bcba accredited programs equips students with skills in behavior analysis, applicable to both animal behavior modification and therapeutic roles in veterinary settings.

Understanding mental health is increasingly important. Programs in school psychology programs online accredited by nasp focus on psychology principles relevant for those interested in animal-assisted therapies or enriching human-animal interaction studies.

For advanced psychology careers that may complement veterinary practice, online psyd programs accredited offer pathways to clinical expertise, with flexible admission requirements that support working professionals. Together, these related degrees expand skill sets and open diverse career pathways beyond traditional veterinary roles.

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