World's Best Scientists 2026 revealed!
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Animal Science and Veterinary
Canada
2026

D-Index & Metrics

Animal Science and Veterinary

D-Index
88
Citations
26120
World Ranking
38
National Ranking
6

Ken E. Leslie 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 Ken E. Leslie 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: 349 publications — 93rd percentile

93% of scientists in this discipline score the same or lower.

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

Ken E. Leslie 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 Ken E. Leslie 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: 88 D-Index — 99th percentile

99% of scientists in this discipline score the same or lower.

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

Research.com Recognitions

  • 2026 - Research.com Animal Science and Veterinary in Canada Leader Award
  • 2025 - Research.com Animal Science and Veterinary in Canada Leader Award
  • 2023 - Research.com Animal Science and Veterinary in Canada Leader Award
  • 2022 - Research.com Animal Science and Veterinary in Canada Leader Award

Overview

What is he best known for?

The fields of study he is best known for:

  • Internal medicine
  • Bacteria
  • Disease

His primary areas of investigation include Dairy cattle, Animal science, Herd, Lactation and Mastitis. His Dairy cattle research integrates issues from Endocrinology, Retained placenta, Ketosis, Postpartum period and Internal medicine. Ken E. Leslie combines subjects such as Ice calving, Artificial insemination and Colostrum, Antibody, Passive immunity with his study of Animal science.

His Herd study is concerned with the field of Veterinary medicine as a whole. His Lactation research is multidisciplinary, relying on both Peripartum Period and Disease course. His work deals with themes such as Biotechnology, Staphylococcus aureus, Immunology and Somatic cell count, which intersect with Mastitis.

His most cited work include:

  • Defining and diagnosing postpartum clinical endometritis and its impact on reproductive performance in dairy cows. (540 citations)
  • Endometrial cytology and ultrasonography for the detection of subclinical endometritis in postpartum dairy cows. (421 citations)
  • Impact of hyperketonemia in early lactation dairy cows on health and production. (410 citations)

What are the main themes of his work throughout his whole career to date?

Ken E. Leslie mainly focuses on Animal science, Dairy cattle, Herd, Mastitis and Ice calving. The Animal science study combines topics in areas such as Pregnancy, Lactation, Endocrinology, Veterinary medicine and Internal medicine. His work carried out in the field of Dairy cattle brings together such families of science as Ketosis, Postpartum period, Monensin, Placebo and Milk production.

His research integrates issues of Milking, California mastitis test and Immunology in his study of Herd. His study looks at the relationship between Mastitis and fields such as Somatic cell count, as well as how they intersect with chemical problems. His Ice calving research includes elements of NEFA, Abomasum, Colostrum and Retained placenta.

He most often published in these fields:

  • Animal science (55.67%)
  • Dairy cattle (29.55%)
  • Herd (28.52%)

What were the highlights of his more recent work (between 2010-2020)?

  • Animal science (55.67%)
  • Dairy cattle (29.55%)
  • Ice calving (24.74%)

In recent papers he was focusing on the following fields of study:

Ken E. Leslie focuses on Animal science, Dairy cattle, Ice calving, Mastitis and Herd. He has included themes like Veterinary medicine, Pregnancy, Lactation and Colostrum in his Animal science study. His Dairy cattle research includes themes of Body weight, Birth weight, Milk production and FLUNIXIN MEGLUMINE.

Ken E. Leslie has included themes like Placebo, Scoring system, Bovine respiratory disease and Vitality in his Ice calving study. His Mastitis research incorporates elements of Internal medicine, Surgery, Cephapirin sodium and Somatic cell count. The Herd study combines topics in areas such as Metritis, Retained placenta, Lower risk, Milking and Random effects model.

Between 2010 and 2020, his most popular works were:

  • Factors associated with morbidity, mortality, and growth of dairy heifer calves up to 3 months of age (215 citations)
  • The association of serum metabolites in the transition period with milk production and early-lactation reproductive performance. (138 citations)
  • The selective treatment of clinical mastitis based on on-farm culture results: I. Effects on antibiotic use, milk withholding time, and short-term clinical and bacteriological outcomes. (132 citations)

In his most recent research, the most cited papers focused on:

  • Internal medicine
  • Bacteria
  • Disease

His scientific interests lie mostly in Animal science, Dairy cattle, Mastitis, Lactation and Herd. His Animal science study combines topics in areas such as Feeding behavior, Automatic milking and Colostrum. His biological study spans a wide range of topics, including Weight gain, Incidence and Postpartum period.

His Mastitis study integrates concerns from other disciplines, such as Veterinary medicine, Dairy industry, Cephapirin sodium and Early detection. His Lactation research is mostly focused on the topic Ice calving. His Herd research is multidisciplinary, incorporating elements of Metritis, Retained placenta, Internal medicine, Randomized controlled trial and Milking.

Best Publications

  • Defining and diagnosing postpartum clinical endometritis and its impact on reproductive performance in dairy cows.

    S.J. LeBlanc;T.F. Duffield;K.E. Leslie;K.G. Bateman

  • Impact of hyperketonemia in early lactation dairy cows on health and production.

    T.F. Duffield;K.D. Lissemore;B.W. McBride;K.E. Leslie

  • Endometrial cytology and ultrasonography for the detection of subclinical endometritis in postpartum dairy cows.

    R Kasimanickam;T.F Duffield;R.A Foster;C.J Gartley

  • Major Advances in Disease Prevention in Dairy Cattle

    S.J. LeBlanc;K.D. Lissemore;D.F. Kelton;T.F. Duffield

  • Alteration in immune responsiveness during the peripartum period and its ramification on dairy cow and calf health

    B A Mallard;J C Dekkers;M J Ireland;K E Leslie

  • Metabolic Predictors of Displaced Abomasum in Dairy Cattle

    S.J. LeBlanc;K.E. Leslie;T.F. Duffield

  • Factors associated with morbidity, mortality, and growth of dairy heifer calves up to 3 months of age

    M.C. Windeyer;K.E. Leslie;S.M. Godden;D.C. Hodgins

  • Risk factors for postpartum uterine diseases in dairy cows.

    J. Dubuc;T.F. Duffield;K.E. Leslie;J.S. Walton

  • The effect of subclinical ketosis in early lactation on reproductive performance of postpartum dairy cows.

    R.B. Walsh;J.S. Walton;D.F. Kelton;S.J. LeBlanc

  • Definitions and diagnosis of postpartum endometritis in dairy cows.

    J. Dubuc;T.F. Duffield;K.E. Leslie;J.S. Walton

  • Evaluation of changes in somatic cell counts as indicators of new intramammary infections

    Ian R. Dohoo;K. E. Leslie

  • Use of test day milk fat and milk protein to detect subclinical ketosis in dairy cattle in Ontario.

    T F Duffield;D F Kelton;K E Leslie;K D Lissemore

  • Sensitivity and specificity of somatic cell count and California Mastitis Test for identifying intramammary infection in early lactation.

    J.M. Sargeant;K.E. Leslie;J.E. Shirley;B.J. Pulkrabek

  • An evaluation of Brix refractometry instruments for measurement of colostrum quality in dairy cattle

    V. Bielmann;J. Gillan;N.R. Perkins;A.L. Skidmore

  • The association of serum metabolites in the transition period with milk production and early-lactation reproductive performance.

    N. Chapinal;M. E. Carson;S. J. LeBlanc;K. E. Leslie

  • A comparison of the cytobrush and uterine lavage techniques to evaluate endometrial cytology in clinically normal postpartum dairy cows

    Ramanathan Kasimanickam;Todd F Duffield;Robert A Foster;Cathy J Gartley

  • Efficacy of Monensin for the Prevention of Subclinical Ketosis in Lactating Dairy Cows

    T.F. Duffield;D. Sandals;K.E. Leslie;K. Lissemore

  • The effect of treatment of clinical endometritis on reproductive performance in dairy cows

    S. J. LeBlanc;T. F. Duffield;K. E. Leslie;K. G. Bateman

  • Metabolic predictors of post-partum disease and culling risk in dairy cattle.

    Hesam A. Seifi;Stephen J. LeBlanc;Ken E. Leslie;Todd F. Duffield

  • The selective treatment of clinical mastitis based on on-farm culture results: I. Effects on antibiotic use, milk withholding time, and short-term clinical and bacteriological outcomes.

    A. Lago;S.M. Godden;R. Bey;P.L. Ruegg

  • Association of cow and quarter-level factors at drying-off with new intramammary infections during the dry period.

    R.T Dingwell;K.E Leslie;Y.H Schukken;J.M Sargeant

  • Herd-level association of serum metabolites in the transition period with disease, milk production, and early lactation reproductive performance.

    N. Chapinal;S.J. LeBlanc;M.E. Carson;K.E. Leslie

  • Effect of treatment with progesterone on pregnancy rate and plasma concentrations of progesterone in Holstein cows.

    Nancy A. Robinson;Kenneth E. Leslie;John S. Walton

  • The effect of a single administration of cephapirin or cloprostenol on the reproductive performance of dairy cows with subclinical endometritis

    R. Kasimanickam;T.F. Duffield;R.A. Foster;C.J. Gartley

  • Evaluation of a Brix refractometer to estimate serum immunoglobulin G concentration in neonatal dairy calves

    S.M. Deelen;T.L. Ollivett;D.M. Haines;K.E. Leslie

Frequent Co-Authors

Todd F. Duffield
Todd F. Duffield University of Guelph
Stephen J. LeBlanc
Stephen J. LeBlanc University of Guelph
David F. Kelton
David F. Kelton University of Guelph
Kerry D. Lissemore
Kerry D. Lissemore University of Guelph
Trevor J. DeVries
Trevor J. DeVries University of Guelph
Ynte H. Schukken
Ynte H. Schukken Wageningen University & Research
Jan M. Sargeant
Jan M. Sargeant University of Guelph
Ian R. Dohoo
Ian R. Dohoo University of Prince Edward Island
Sandra M Godden
Sandra M Godden University of Minnesota
R. Bagg
R. Bagg Eli Lilly (United States)

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Related Online Degrees & Career Pathways

Exploring a degree in Animal Science and Veterinary fields opens doors to various interdisciplinary career opportunities, especially those involving health and counseling. Many students interested in supporting animal welfare and human-animal relationships also consider related fields in mental health and therapy.

For those looking to expand their expertise in behavioral sciences, accredited online colleges for drug and alcohol counseling provide targeted education that complements animal-related care professions. These programs often prepare graduates to address addiction issues that can affect both humans and the communities they serve.

Online masters in marriage and family therapy offer additional pathways to specialize in strengthening family dynamics, an important aspect often related to pet ownership and animal-assisted therapy programs. These flexible programs help professionals gain skills to support families through various challenges.

Advancing to an online doctorate in counseling allows for deeper research and leadership roles in therapeutic fields, which can intersect with veterinary behavioral studies or animal-assisted interventions. Many aspiring counselors prefer the convenience of online psyd programs accredited by apa to meet academic excellence without GRE requirements.

By integrating these related online degrees, graduates can enhance their career options and contribute more effectively to both animal health and human well-being.

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