World's Best Scientists 2026 revealed!

D-Index & Metrics

Animal Science and Veterinary

D-Index
41
Citations
4783
World Ranking
1124
National Ranking
79

Trevor W. Alexander 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 Trevor W. Alexander 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: 131 publications — 46th percentile

46% of scientists in this discipline score the same or lower.

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

Trevor W. Alexander 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 Trevor W. Alexander 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: 41 D-Index — 67th percentile

67% of scientists in this discipline score the same or lower.

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

Overview

Trevor W. Alexander is affiliated with Agriculture and Agriculture-Food Canada in Canada. Their research primarily spans the fields of Immunology and Microbiology as well as Agricultural and Biological Sciences. Within these areas, their work notably covers subfields such as Microbiology, Molecular Biology, Agronomy and Crop Science, Epidemiology, and Ecology.

The scientist has contributed extensively to topics including Microbial infections and disease research, Gut microbiota and health, Ruminant Nutrition and Digestive Physiology, Bacteriophages and microbial interactions, Milk Quality and Mastitis in Dairy Cows, Mycobacterium research and diagnosis, and Genomics and Phylogenetic Studies.

Recent publications by Trevor W. Alexander include:

  • Topography of the respiratory tract bacterial microbiota in cattle, 2020, Microbiome
  • Intranasal Bacterial Therapeutics Reduce Colonization by the Respiratory Pathogen Mannheimia haemolytica in Dairy Calves, 2020, mSystems
  • Respiratory Bacterial Microbiota in Cattle, 2020, Veterinary Clinics of North America Food Animal Practice
  • Quantifying fluorescent glycan uptake to elucidate strain-level variability in foraging behaviors of rumen bacteria, 2021, Microbiome
  • Soil antibiotic resistance genes accumulate at different rates over four decades of manure application, 2022, Journal of Hazardous Materials

Frequent co-authors in their work include:

  • Tim A. McAllister
  • Edouard Timsit
  • Leeann Klassen
  • Greta Reintjes
  • Timothy Schwinghamer

Trevor W. Alexander often publishes in several well-known venues, such as:

  • Journal of Animal Science
  • mSystems
  • bioRxiv (Cold Spring Harbor Laboratory)
  • Microbiome
  • Frontiers in Veterinary Science

Best Publications

  • Pathogens of Bovine Respiratory Disease in North American Feedlots Conferring Multidrug Resistance via Integrative Conjugative Elements

    Cassidy L. Klima;Cassidy L. Klima;Rahat Zaheer;Shaun R. Cook;Calvin W. Booker

  • Effect of Subtherapeutic Administration of Antibiotics on the Prevalence of Antibiotic-Resistant Escherichia coli Bacteria in Feedlot Cattle

    T. W. Alexander;L. J. Yanke;E. Topp;M. E. Olson

  • Prevalence and antimicrobial susceptibility of Mannheimia haemolytica, Pasteurella multocida, and Histophilus somni isolated from the lower respiratory tract of healthy feedlot cattle and those diagnosed with bovine respiratory disease.

    Edouard Timsit;Jennyka Hallewell;Calvin Booker;Nicolas Tison

  • A fibrolytic enzyme additive for lactating Holstein cow diets: ruminal fermentation, rumen microbial populations, and enteric methane emissions.

    Y.-H. Chung;M. Zhou;L. Holtshausen;T.W. Alexander

  • The nasopharyngeal microbiota of feedlot cattle that develop bovine respiratory disease.

    Devin B. Holman;Tim A. McAllister;Edward Topp;André-Denis G. Wright

  • Characterization of Mannheimia haemolytica isolated from feedlot cattle that were healthy or treated for bovine respiratory disease.

    Cassidy L Klima;Trevor W Alexander;Steve Hendrick;Tim A McAllister

  • A review of the detection and fate of novel plant molecules derived from biotechnology in livestock production

    Trevor W. Alexander;Trevor W. Alexander;Tim Reuter;Karen Aulrich;Ranjana Sharma

  • Topography of the respiratory tract bacterial microbiota in cattle.

    Christopher McMullen;Trevor W. Alexander;Renaud Léguillette;Matthew Workentine

  • Antibiotic treatment in feedlot cattle: a longitudinal study of the effect of oxytetracycline and tulathromycin on the fecal and nasopharyngeal microbiota

    Devin B. Holman;Wenzhu Yang;Trevor W. Alexander

  • Longitudinal characterization of antimicrobial resistance genes in feces shed from cattle fed different subtherapeutic antibiotics

    Trevor W Alexander;Jay L Yanke;Tim Reuter;Ed Topp

  • The nasopharyngeal microbiota of beef cattle before and after transport to a feedlot

    Devin B. Holman;Edouard Timsit;Samat Amat;D. Wade Abbott

  • Farm-to-fork characterization of Escherichia coli associated with feedlot cattle with a known history of antimicrobial use.

    T.W. Alexander;G.D. Inglis;L.J. Yanke;E. Topp

  • Effect of subtherapeutic vs. therapeutic administration of macrolides on antimicrobial resistance in Mannheimia haemolytica and enterococci isolated from beef cattle

    Rahat Zaheer;Shaun R. Cook;Cassidy L. Klima;Kim Stanford

  • Evolution of the nasopharyngeal microbiota of beef cattle from weaning to 40 days after arrival at a feedlot

    Edouard Timsit;Matthew Workentine;Anthony B. Schryvers;Devin B. Holman

  • A biosecure composting system for disposal of cattle carcasses and manure following infectious disease outbreak.

    Weiping Xu;Tim Reuter;G. Douglas Inglis;Francis J. Larney

  • Detection of transgenic and endogenous plant DNA in digesta and tissues of sheep and pigs fed roundup ready canola meal

    Ranjana Sharma;Dana Damgaard;Trevor W Alexander;Mike E R Dugan

  • Genetic characterization and antimicrobial susceptibility of Mannheimia haemolytica isolated from the nasopharynx of feedlot cattle.

    C.L. Klima;T.W. Alexander;R.R. Read;S.P. Gow

  • Respiratory viruses identified in western Canadian beef cattle by metagenomic sequencing and their association with bovine respiratory disease

    Maodong Zhang;Janet E. Hill;Champika Fernando;Trevor W. Alexander

  • Long-term and legacy effects of manure application on soil microbial community composition

    Yuting Zhang;Yuting Zhang;Xiying Hao;Trevor W. Alexander;Ben W. Thomas

  • In vitro effects of phlorotannins from Ascophyllum nodosum (brown seaweed) on rumen bacterial populations and fermentation

    Yuxi Wang;Trevor W Alexander;Tim A McAllister

  • Distinct bacterial metacommunities inhabit the upper and lower respiratory tracts of healthy feedlot cattle and those diagnosed with bronchopneumonia.

    Edouard Timsit;Matthew Workentine;Frank van der Meer;Trevor Alexander

  • The nasopharyngeal microbiota of feedlot cattle.

    Devin B. Holman;Edouard Timsit;Trevor W. Alexander

  • Diversity and Distribution of Commensal Fecal Escherichia coli Bacteria in Beef Cattle Administered Selected Subtherapeutic Antimicrobials in a Feedlot Setting

    Ranjana Sharma;Krysty Munns;Trevor Alexander;Toby Entz

Frequent Co-Authors

Tim A. McAllister
Tim A. McAllister Agriculture and Agriculture-Food Canada
Kim Stanford
Kim Stanford University of Lethbridge
Edward Topp
Edward Topp Agriculture and Agriculture-Food Canada
Karin Orsel
Karin Orsel University of Calgary
Yuxi Wang
Yuxi Wang Agriculture and Agriculture-Food Canada
Erasmus K. Okine
Erasmus K. Okine University of Lethbridge
Graham Plastow
Graham Plastow University of Alberta
Francis J. Larney
Francis J. Larney Agriculture and Agriculture-Food Canada
Karen A. Beauchemin
Karen A. Beauchemin Agriculture and Agriculture-Food Canada
W.Z. Yang
W.Z. Yang Agriculture and Agriculture-Food Canada

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Related Online Degrees & Career Pathways

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Exploring these allied fields through accredited online degrees paves the way for multidisciplinary careers, allowing graduates to diversify their expertise and contribute holistically to animal health and wellbeing.

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