World's Best Scientists 2026 revealed!

D-Index & Metrics

Animal Science and Veterinary

D-Index
54
Citations
12653
World Ranking
473
National Ranking
21

Overview

What is he best known for?

The fields of study he is best known for:

  • Internal medicine
  • Bacteria
  • Statistics

His scientific interests lie mostly in Mastitis, Somatic cell count, Herd, Veterinary medicine and Dairy cattle. Mastitis is a primary field of his research addressed under Microbiology. Theo J.G.M. Lam has included themes like Animal husbandry, Agricultural science, Udder, Dairy herds and Milking in his Somatic cell count study.

Theo J.G.M. Lam has researched Herd in several fields, including Incidence and Immunology. His Veterinary medicine research is multidisciplinary, incorporating perspectives in Staphylococcus chromogenes, Staphylococcus epidermidis, Coagulase and Staphylococcus xylosus. His work in Dairy cattle is not limited to one particular discipline; it also encompasses Lactation.

His most cited work include:

  • Incidence of Clinical Mastitis in Dairy Herds Grouped in Three Categories by Bulk Milk Somatic Cell Counts (411 citations)
  • Estimation of Variance Components for Somatic Cell Counts to Determine Thresholds for Uninfected Quarters (315 citations)
  • Economic aspects of mastitis: New developments (264 citations)

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

His main research concerns Mastitis, Veterinary medicine, Somatic cell count, Udder and Herd. His research integrates issues of Milking, Incidence and Staphylococcus aureus in his study of Mastitis. His work in Veterinary medicine covers topics such as Dairy cattle which are related to areas like Antibiotic resistance and Animal husbandry.

His studies deal with areas such as Streptococcus uberis, Somatic cell, Biotechnology, Immunology and Internal medicine as well as Somatic cell count. He focuses mostly in the field of Udder, narrowing it down to matters related to Environmental health and, in some cases, Mastitis control. His Herd study contributes to a more complete understanding of Animal science.

He most often published in these fields:

  • Mastitis (57.42%)
  • Veterinary medicine (37.32%)
  • Somatic cell count (33.49%)

What were the highlights of his more recent work (between 2014-2021)?

  • Mastitis (57.42%)
  • Udder (30.14%)
  • Somatic cell count (33.49%)

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

Mastitis, Udder, Somatic cell count, Herd and Animal science are his primary areas of study. His research in Mastitis intersects with topics in Veterinary medicine, Antibiotic resistance, Antimicrobial use and Staphylococcus aureus. His work in Veterinary medicine tackles topics such as Dairy cattle which are related to areas like Biotechnology.

His Somatic cell count study combines topics from a wide range of disciplines, such as Odds ratio, Milking, Automatic milking and Antimicrobial. His Herd research incorporates themes from Statistics, Odds and Environmental health. He focuses mostly in the field of Animal science, narrowing it down to topics relating to Lactation and, in certain cases, Endocrinology, Internal medicine and Fertility.

Between 2014 and 2021, his most popular works were:

  • Invited review: Changes in the dairy industry affecting dairy cattle health and welfare. (213 citations)
  • Invited review: Determinants of farmers' adoption of management-based strategies for infectious disease prevention and control (93 citations)
  • Molecular relatedness of ESBL/AmpC-producing Escherichia coli from humans, animals, food and the environment : a pooled analysis (74 citations)

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

  • Internal medicine
  • Bacteria
  • Statistics

Theo J.G.M. Lam focuses on Mastitis, Herd, Dairy cattle, Veterinary medicine and Udder. His Mastitis study integrates concerns from other disciplines, such as Animal science and Agricultural science. His study in Herd is interdisciplinary in nature, drawing from both Ice calving and Escherichia coli.

Theo J.G.M. Lam interconnects Biosecurity, Biotechnology, Antibiotic resistance and Food safety in the investigation of issues within Dairy cattle. His Veterinary medicine study which covers Somatic cell count that intersects with Bulk tank, Milking, Subclinical mastitis, Antimicrobial and Descriptive statistics. His Udder research integrates issues from Total cost, Culling and Milk production.

Best Publications

  • Economic aspects of mastitis: New developments

    H. Hogeveen;K. Huijps;T.J.G.M. Lam

  • Incidence of Clinical Mastitis in Dairy Herds Grouped in Three Categories by Bulk Milk Somatic Cell Counts

    H.W. Barkema;Y.H. Schukken;T.J.G.M. Lam;M.L. Beiboer

  • Invited review: Changes in the dairy industry affecting dairy cattle health and welfare.

    H.W. Barkema;M.A.G. von Keyserlingk;J.P. Kastelic;T.J.G.M. Lam

  • Estimation of Variance Components for Somatic Cell Counts to Determine Thresholds for Uninfected Quarters

    A.J. Schepers;T.J.G.M. Lam;Y.H. Schukken;J.B.M. Wilmink

  • Costs of mastitis: facts and perception.

    Kirsten Huijps;Theo J. G. M. Lam;Henk Hogeveen

  • Management Practices Associated with the Incidence Rate of Clinical Mastitis

    H.W. Barkema;Y.H. Schukken;T.J.G.M. Lam;M.L. Beiboer

  • Prevalence, prediction and risk factors of enteropathogens in normal and non-normal faeces of young Dutch dairy calves.

    Chris J.M. Bartels;Menno Holzhauer;Ruurd Jorritsma;Wim A.J.M. Swart

  • Management practices associated with low, medium, and high somatic cell counts in bulk milk

    H.W. Barkema;Y.H. Schukken;T.J.G.M. Lam;M.L. Beiboer

  • Management style and its association with bulk milk somatic cell count and incidence rate of clinical mastitis.

    H.W. Barkema;J.D. Van der Ploeg;Y.H. Schukken;T.J.G.M. Lam

  • Invited review: Determinants of farmers' adoption of management-based strategies for infectious disease prevention and control

    Caroline Ritter;Jolanda Jansen;Steven Roche;David F. Kelton

  • Explaining mastitis incidence in Dutch dairy farming: The influence of farmers’ attitudes and behaviour

    J. Jansen;B.H.P. van den Borne;R.J. Renes;G. van Schaik

  • Production loss due to new subclinical mastitis in Dutch dairy cows estimated with a test-day model

    T.H.B. Halasa;T.H.B. Halasa;M. Nielen;A.P.W. de Roos;R. van Hoorne

  • Debunking the myth of the hard-to-reach farmer: effective communication on udder health.

    J. Jansen;C.D.M. Steuten;R.J. Renes;N. Aarts;N. Aarts

  • Motivation of Dairy Farmers to Improve Mastitis Management

    N.I. Valeeva;T.J.G.M. Lam;H. Hogeveen;H. Hogeveen

  • Molecular relatedness of ESBL/AmpC-producing Escherichia coli from humans, animals, food and the environment : a pooled analysis

    Alejandro Dorado-García;Joost H Smid;Wilfrid van Pelt;Marc J M Bonten

  • Estimation of Interdependence Among Quarters of the Bovine Udder with Subclinical Mastitis and Implications for Analysis

    H.W. Barkema;Y.H. Schukken;T.J.G.M. Lam;D.T. Galligan

  • Prevalence of Coxiella burnetii infection in Dutch dairy herds based on testing bulk tank milk and individual samples by PCR and ELISA

    J. Muskens;E. van Engelen;C. van Maanen;C. Bartels

  • Quarter-milk somatic cell count at calving and at the first six milkings after calving.

    H.W Barkema;H.A Deluyker;Y.H Schukken;T.J.G.M Lam

  • Field comparison of real-time polymerase chain reaction and bacterial culture for identification of bovine mastitis bacteria.

    M.T. Koskinen;G.J. Wellenberg;O.C. Sampimon;J. Holopainen

  • Recurrent clinical mastitis caused by Escherichia coli in dairy cows.

    D. Döpfer;H.W. Barkema;T.J.G.M. Lam;Y.H. Schukken

  • Social influences on the duration of antibiotic treatment of clinical mastitis in dairy cows

    J.M. Swinkels;A. Hilkens;V. Zoche-Golob;V. Krömker

  • Prevalence of intramammary infection in Dutch dairy herds

    Otlis Sampimon;Herman Barkema;Inge Berends;Jan Sol

  • Failure and preventive costs of mastitis on Dutch dairy farms.

    Felix J.S. van Soest;Inge M.G.A. Santman-Berends;Theo J.G.M. Lam;Henk Hogeveen;Henk Hogeveen

  • Prevalence and risk factors for extended-spectrum β-lactamase- and AmpC-producing Escherichia coli in dairy farms.

    M.A. Gonggrijp;I.M.G.A. Santman-Berends;A.E. Heuvelink;G.J. Buter

  • Evaluation of two communication strategies to improve udder health management

    J. Jansen;R.J. Renes;T.J.G.M. Lam

  • Characterization of methicillin-resistant Staphylococcus aureus CC398 obtained from humans and animals on dairy farms.

    Andrea T Fessler;Richard G M Olde Riekerink;Anja Rothkamp;Kristina Kadlec

  • The role of communication in improving udder health

    Jolanda Jansen;Theo J.G.M. Lam

  • An observational study of Eimeria species in housed cattle on Dutch dairy farms

    A.W.C.A. Cornelissen;R. Verstegen;H. van den Brand;N.M. Perie

  • Effect of different scenarios for selective dry-cow therapy on udder health, antimicrobial usage, and economics.

    C.G.M. Scherpenzeel;I.E.M. den Uijl;G. van Schaik;R.G.M.Olde Riekerink

  • Identification of Escherichia coli strains from cows with clinical mastitis by serotyping and DNA polymorphism patterns with REP and ERIC primers.

    L. J. A. Lipman;A. De Nijs;T. J. G. M. Lam;W. Gaastra

Frequent Co-Authors

Henk Hogeveen
Henk Hogeveen Wageningen University & Research
Ynte H. Schukken
Ynte H. Schukken Wageningen University & Research
G. van Schaik
G. van Schaik Utrecht University
Herman W. Barkema
Herman W. Barkema University of Calgary
I.M.G.A. Santman-Berends
I.M.G.A. Santman-Berends De Gezondheidsdienst voor Dieren
Mirjam Nielen
Mirjam Nielen Utrecht University
Klaas Frankena
Klaas Frankena Wageningen University & Research
Ruth N. Zadoks
Ruth N. Zadoks University of Sydney
Dik Mevius
Dik Mevius Utrecht University
M. Eysker
M. Eysker Utrecht University

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Related Online Degrees & Career Pathways

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Moreover, degrees related to behavioral analysis, such as the bcba degree, offer career pathways in behavior therapy, including work with animals or humans. This expands opportunities for those interested in applied behavior analysis beyond veterinary science.

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