World's Best Scientists 2026 revealed!
Eugene D. Janzen

Eugene D. Janzen

D-Index & Metrics

Animal Science and Veterinary

D-Index
33
Citations
3916
World Ranking
2015
National Ranking
128

Eugene D. Janzen 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 Eugene D. Janzen 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.

Eugene D. Janzen 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 Eugene D. Janzen 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: 33 D-Index — 39th percentile

39% of scientists in this discipline score the same or lower.

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

Overview

Eugene D. Janzen is affiliated with the University of Calgary in Canada and has a research focus primarily in Agricultural and Biological Sciences and Veterinary fields. Their work spans several interdisciplinary areas, notably Small Animals, Animal Science and Zoology, and Agronomy and Crop Science.

Their research topics cover a range of subjects related to animal health, behavior, and production including:

  • Animal Behavior and Welfare Studies
  • Meat and Animal Product Quality
  • Animal Disease Management and Epidemiology
  • Animal Nutrition and Physiology
  • Effects of Environmental Stressors on Livestock
  • Veterinary Pharmacology and Anesthesia

Janzen has coauthored with several frequent collaborators, such as Sònia Martí, K. S. Schwartzkopf-Genswein, Edmond A. Pajor, Daniela M Meléndez, and Murray Jelinski, reflecting a broad network within their research community.

Their publication record includes papers in venues like the Canadian Journal of Animal Science, the Journal of Dairy Science, and the American Association of Bovine Practitioners Conference Proceedings. Notable recent papers are:

  • A prospective longitudinal study of risk factors associated with cattle lameness in southern Alberta feedlots (2021), Canadian Journal of Animal Science
  • Characterizing the diagnostic sensitivity and specificity of pain biomarkers in cattle using receiver operating characteristic curves (2022), Journal of Dairy Science
  • What we know that just ain't so (2020), American Association of Bovine Practitioners Conference Proceedings

Their work contributes to understanding animal welfare, particularly in cattle, by examining risk factors for conditions like lameness and assessing diagnostic tools such as pain biomarkers. This research integrates epidemiological approaches with animal science to address health and productivity challenges in livestock systems.

Janzen's research is situated at the intersection of animal health management and production science, with a consistent emphasis on welfare and disease epidemiology. Their collaboration across multiple coauthors and publication venues highlights engagement with both clinical and applied aspects of veterinary and agricultural sciences.

Best Publications

  • Mycoplasma bovis infections in cattle

    F. P. Maunsell;A. R. Woolums;D. Francoz;R. F. Rosenbusch

  • Microbiological and histopathological findings in cases of fatal bovine respiratory disease of feedlot cattle in Western Canada.

    Calvin W Booker;Sameeh M Abutarbush;Paul S Morley;G Kee Jim

  • Coinfection with bovine viral diarrhea virus and Mycoplasma bovis in feedlot cattle with chronic pneumonia.

    Farshid M. Shahriar;Edward G. Clark;Eugene Janzen;Keith West

  • Diagnosis of Persistent Bovine Viral Diarrhea Virus Infection by Immunohistochemical Staining of Formalin-Fixed Skin Biopsy Specimens:

    Brad L. Njaa;Edward G. Clark;Eugene Janzen;John A. Ellis

  • The Haemophilus somnus disease complex (Hemophilosis): A review.

    Frederick W. Harris;Eugene D. Janzen

  • Pain mitigation after band castration of beef calves and its effects on performance, behavior, Escherichia coli, and salivary cortisol.

    L. A. González;K. S. Schwartzkopf-Genswein;N. A. Caulkett;E. Janzen

  • The immunohistochemical detection of Mycoplasma bovis and bovine viral diarrhea virus in tissues of feedlot cattle with chronic, unresponsive respiratory disease and/or arthritis.

    D M Haines;K M Martin;E G Clark;G K Jim

  • A review of morbidity and mortality rates and disease occurrence in north american feedlot cattle.

    Andrew P. Kelly;Eugene D. Janzen

  • Performance, survival, necropsy, and virological findings from calves persistently infected with the bovine viral diarrhea virus originating from a single Saskatchewan beef herd.

    L F Taylor;E D Janzen;J A Ellis;J V van den Hurk

  • A comparison of the clinical field efficacy and safety of florfenicol and tilmicosin for the treatment of undifferentiated bovine respiratory disease of cattle in western Canada.

    B R Hoar;M D Jelinski;C S Ribble;E D Janzen

  • Effect of time of year, weather, and the pattern of auction market sales on fatal fibrinous pneumonia (shipping fever) in calves in a large feedlot in Alberta (1985-1988).

    C S Ribble;A H Meek;E D Janzen;P T Guichon

  • Estrus synchronization and pregnancy rates in beef cattle given CIDR-B, prostaglandin and estradiol, or GnRH.

    M F Martínez;J P Kastelic;G P Adams;E Janzen

  • Efficacy of vaccination against Fusobacterium necrophorum infection for control of liver abscesses and footrot in feedlot cattle in western Canada.

    Sylvia L. Checkley;Eugene D. Janzen;John R. Campbell;John J. McKinnon

  • Outbreak of abortion associated with Neospora caninum infection in a beef herd.

    Waldner Cl;Janzen Ed;Henderson J;Haines Dm

  • EFFICACY AND STRESS OF CHEMICAL VERSUS SURGICAL CASTRATION OF CATTLE

    Unknown

  • Polioencephalomalacia in cattle consuming water with elevated sodium sulfate levels: A herd investigation.

    Heidi Hamlen;Edward Clark;Eugene Janzen

  • The prevalence of bovine viral diarrhea virus infection in a population of feedlot calves in western Canada.

    L F Taylor;J Van Donkersgoed;E J Dubovi;R J Harland

  • Prophylactic tilmicosin medication of feedlot calves at arrival.

    Fritz J. Schumann;Eugene D. Janzen;John J. McKinnon

  • The effect of age and method of castration on plasma cortisol in beef calves

    B. D. King;R. D. H. Cohen;C. L. Guenther;E. D. Janzen

  • Associations between antimicrobial use and the prevalence of antimicrobial resistance in fecal Escherichia coli from feedlot cattle in western Canada.

    Sylvia L. Checkley;John R. Campbell;Manuel Chirino-Trejo;Eugene D. Janzen

  • Effect of anti-gonadotropin-releasing factor vaccine and band castration on indicators of welfare in beef cattle.

    S. Marti;M. Devant;S. Amatayakul-Chantler;J. A. Jackson

  • Effect of band and knife castration of beef calves on welfare indicators of pain at three relevant industry ages: I. Acute pain.

    D. M. Meléndez;S. Marti;E. A. Pajor;D. Moya

  • Epidemiological features of calf mortality due to hemophilosis in a large feedlot.

    J. van Donkersgoed;E. D. Janzen;R. J. Harland

  • LOSSES OVER A 2-YEAR PERIOD ASSOCIATED WITH FETAL INFECTION WITH THE BOVINE VIRAL DIARRHEA VIRUS IN A BEEF COW-CALF HERD IN SASKATCHEWAN

    L F Taylor;E D Janzen;J Van Donkersgoed

  • Interstitial pneumonia in feedlot cattle: concurrent lesions and lack of immunohistochemical evidence for bovine respiratory syncytial virus infection.

    Steven D. Sorden;Robert W. Kerr;Eugene D. Janzen

  • Effects of castration method and frequency of intramuscular injections of ketoprofen on behavioral and physiological indicators of pain in beef cattle.

    D. Moya;L. A. González;E. Janzen;N. A. Caulkett

  • Associations between oil- and gas-well sites, processing facilities, flaring, and beef cattle reproduction and calf mortality in western Canada.

    C.L Waldner;C.S Ribble;E.D Janzen;J.R Campbell

Frequent Co-Authors

Karen S. Schwartzkopf-Genswein
Karen S. Schwartzkopf-Genswein Agriculture and Agriculture-Food Canada
Edmond A. Pajor
Edmond A. Pajor University of Calgary
John R. Campbell
John R. Campbell University of Saskatchewan
Cheryl L. Waldner
Cheryl L. Waldner University of Saskatchewan
Luciano A. González
Luciano A. González University of Sydney
John J. McKinnon
John J. McKinnon University of Saskatchewan
Karin Orsel
Karin Orsel University of Calgary
John P. Kastelic
John P. Kastelic University of Calgary
Jan K. Shearer
Jan K. Shearer Iowa State University
Joseph M. Stookey
Joseph M. Stookey Western University of Health Sciences

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