World's Best Scientists 2026 revealed!

D-Index & Metrics

Animal Science and Veterinary

D-Index
34
Citations
7240
World Ranking
1817
National Ranking
27

Richard Spelman 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 Richard Spelman 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: 94 publications — 23rd percentile

23% of scientists in this discipline score the same or lower.

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

Richard Spelman 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 Richard Spelman 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: 34 D-Index — 43rd percentile

43% of scientists in this discipline score the same or lower.

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

Best Publications

  • Positional candidate cloning of a QTL in dairy cattle: identification of a missense mutation in the bovine DGAT1 gene with major effect on milk yield and composition.

    Bernard Grisart;Wouter Coppieters;Frédéric Farnir;Latifa Karim

  • Genome-Wide Survey of SNP Variation Uncovers the Genetic Structure of Cattle Breeds

    Richard A. Gibbs;Jeremy F. Taylor;Curtis P. Van Tassell

  • Linkage disequilibrium and persistence of phase in Holstein-Friesian, Jersey and Angus cattle

    A. P. W. De Roos;Ben John. Hayes;R. Spelman;M. E. Goddard

  • Molecular dissection of a quantitative trait locus: a phenylalanine-to-tyrosine substitution in the transmembrane domain of the bovine growth hormone receptor is associated with a major effect on milk yield and composition.

    Sarah Blott;Jong-Joo Kim;Sirja Moisio;Anne Schmidt-Küntzel

  • Variants modulating the expression of a chromosome domain encompassing PLAG1 influence bovine stature

    Latifa Karim;Haruko Takeda;Li Lin;Tom Druet

  • Characterization of the DGAT1 gene in the New Zealand dairy population

    R.J. Spelman;C.A. Ford;P. McElhinney;G.C. Gregory

  • Quantitative trait loci analysis for five milk production traits on chromosome six in the Dutch Holstein-Friesian population.

    R.J. Spelman;W. Coppieters;L. Karim;J.A.M. van Arendonk

  • Sequence-based Association Analysis Reveals an MGST1 eQTL with Pleiotropic Effects on Bovine Milk Composition.

    Mathew D. Littlejohn;Mathew D. Littlejohn;Kathryn Tiplady;Tania A. Fink;Klaus Lehnert

  • Accuracy of genomic predictions of residual feed intake and 250-day body weight in growing heifers using 625,000 single nucleotide polymorphism markers.

    J.E. Pryce;J. Arias;P.J. Bowman;S.R. Davis

  • Profitabilities of Some Mating Systems for Dairy Herds in New Zealand

    N. Lopez-Villalobos;D.J. Garrick;C.W. Holmes;H.T. Blair

  • Functionally reciprocal mutations of the prolactin signalling pathway define hairy and slick cattle.

    Mathew D. Littlejohn;Kristen M. Henty;Kathryn Tiplady;Thomas Johnson

  • A high density linkage map of the bovine genome

    Juan A Arias;Mike Keehan;Paul Fisher;Wouter Coppieters

  • NGS-based reverse genetic screen for common embryonic lethal mutations compromising fertility in livestock.

    Carole Charlier;Wanbo Li;Chad Harland;Mathew Littlejohn

  • Mutation in Bovine β-Carotene Oxygenase 2 Affects Milk Color

    S. D. Berry;S. R. Davis;E. M. Beattie;N. L. Thomas

  • Coding and noncoding variants in HFM1, MLH3, MSH4, MSH5, RNF212, and RNF212B affect recombination rate in cattle

    Naveen Kumar Kadri;Chad Harland;Pierre Faux;Nadine Cambisano

  • Genetic variation in PLAG1 associates with early life body weight and peripubertal weight and growth in Bos taurus

    M. Littlejohn;T. Grala;K. Sanders;C. Walker

  • Holstein-Friesian calves selected for divergence in residual feed intake during growth exhibited significant but reduced residual feed intake divergence in their first lactation.

    K.A. Macdonald;J.E. Pryce;J.E. Pryce;R.J. Spelman;S.R. Davis

  • Expression variants of the lipogenic AGPAT6 gene affect diverse milk composition phenotypes in Bos taurus.

    Mathew D. Littlejohn;Kathryn Tiplady;Thomas Lopdell;Tania A. Law

  • DNA and RNA-sequence based GWAS highlights membrane-transport genes as key modulators of milk lactose content

    Thomas J. Lopdell;Thomas J. Lopdell;Kathryn Tiplady;Maksim Struchalin;Thomas J. J. Johnson

  • Moving from QTL experimental results to the utilization of QTL in breeding programmes

    Unknown

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Related Online Degrees & Career Pathways

For those passionate about animals and looking to expand their career options, several online degrees offer exciting pathways. Pursuing jobs with animals that pay well can lead to fulfilling roles in veterinary care, wildlife conservation, or animal behavior.

In addition to animal-centric careers, related fields like sports science can complement your background. For example, an online sports science degree program offers flexible study options while preparing you for roles in athletic training, wellness coaching, or rehabilitation.

Those interested in leadership roles within sports organizations might consider the educational requirements outlined in what degree do you need to be an athletic director. This path combines sports knowledge with management skills for a rewarding career.

Behavioral sciences are also closely related to animal science. Earning a behavioral analysis degree can open doors to careers focused on animal training, therapy, or human behavior intervention, blending science with practical application.

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