World's Best Scientists 2026 revealed!

D-Index & Metrics

Animal Science and Veterinary

D-Index
26
Citations
4295
World Ranking
2857
National Ranking
30

J.A. Van Wyk 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 J.A. Van Wyk 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: 65 publications — 7th percentile

7% of scientists in this discipline score the same or lower.

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

J.A. Van Wyk 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 J.A. Van Wyk 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: 26 D-Index — 10th percentile

10% of scientists in this discipline score the same or lower.

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

Overview

J.A. Van Wyk is affiliated with the University of Pretoria in South Africa, with a primary research focus in Agricultural and Biological Sciences. Their work spans several subfields including Agronomy and Crop Science, Small Animals, Ecology, Evolution, Behavior and Systematics, Plant Science, and Ecology.

Their research interests cover a range of topics related to animal and environmental health, with particular attention to Animal Disease Management and Epidemiology, Ruminant Nutrition and Digestive Physiology, Animal Behavior and Welfare Studies, Effects of Environmental Stressors on Livestock, Helminth Infection and Control, Parasitic Infections and Diagnostics, and Plant and Fungal Interactions.

Van Wyk has contributed to multiple publications, predominantly in journals such as Agriculture, Preprints.org, Veterinary Parasitology, Veterinary Clinics of North America Food Animal Practice, and Small Ruminant Research. The pattern of publication indicates a focus on veterinary parasitology and livestock management.

Recent papers authored or co-authored by Van Wyk include:

  • Refugia-Based Strategies for Parasite Control in Livestock, 2020, Veterinary Clinics of North America Food Animal Practice
  • Goat Health and Management for Improved Smallholders' Livelihoods in Central Malawi - A Socioeconomic Analysis of Rural Households, 2023, Small Ruminant Research
  • World Association for the Advancement of Veterinary Parasitology (W.A.A.V.P.): Third Edition of the Guideline for Evaluating Efficacy of Anthelmintics in Ruminants (Bovine, Ovine, Caprine), 2024, Veterinary Parasitology
  • Site-Specific Forage Management of Sericea Lespedeza: Geospatial Technology-Based Forage Quality and Yield Enhancement Model Development, 2020, Agriculture
  • Development of a Decision Support System for Animal Health Management Using Geo-Information Technology: A Novel Approach to Precision Livestock Management, 2024, Agriculture

Frequent collaborators in Van Wyk's research include Eric R. Morgan, Thomas H Terrill, Sudhanshu Panda, Aftab Siddique, and Ajit K. Mahapatra. These partnerships suggest an interdisciplinary approach integrating veterinary parasitology, animal health, and agricultural technologies.

Publication venues where Van Wyk's work appears most often are:

  • Agriculture
  • Preprints.org
  • Veterinary Parasitology
  • Veterinary Clinics of North America Food Animal Practice
  • Small Ruminant Research

Their research contributes to advancing knowledge in livestock health and management, particularly through the application of geospatial technologies and decision support systems for precision livestock management.

Best Publications

  • Refugia--overlooked as perhaps the most potent factor concerning the development of anthelmintic resistance.

    J A van Wyk

  • Morphological identification of nematode larvae of small ruminants and cattle simplified.

    J A van Wyk;J Cabaret;L M Michael

  • The Pathophysiology, Ecology and Epidemiology of Haemonchus contortus Infection in Small Ruminants

    R B Besier;Lewis Kahn;N D Sargison;J A Van Wyk

  • Resistance of field strains of Haemonchus contortus to ivermectin, closantel, rafoxanide and the benzimidazoles in South Africa

    J A van Wyk;F S Malan

  • Targeted selective treatment for worm management—How do we sell rational programs to farmers?

    J.A. van Wyk;H. Hoste;R.M. Kaplan;R.B. Besier

  • How long before resistance makes it impossible to control some field strains of Haemonchus contortus in South Africa with any of the modern anthelmintics

    J.A. van Wyk;F.S. Malan;J.L. Randles

  • Diagnosis, Treatment and Management of Haemonchus contortus in Small Ruminants

    R B Besier;Lewis Kahn;N D Sargison;J A Van Wyk

  • Clinical evaluation of anaemia in sheep: early trials.

    F S Malan;J A Van Wyk;C D Wessels

  • Haemonchus contortus and Haemonchosis – Past, Present and Future Trends

    R B Besier;L P Kahn;Neil Sargison;J A Van Wyk

  • The Five Point Check© for targeted selective treatment of internal parasites in small ruminants☆

    G.F. Bath;J.A. van Wyk

  • Genetic parameters for FAMACHA score and related traits for host resistance/resilience and production at differing severities of worm challenge in a Merino flock in South Africa.

    D.G. Riley;J.A. Van Wyk

  • Sustainable approaches for managing haemonchosis in sheep and goat

    G.F. Barth;Rome . Animal Production Fao;J.W. Hansen

  • A novel approach to the control of anthelmintic-resistant Haemonchus contortus in sheep

    J.A. Van Wyk;P.C. Van Schalkwyk

  • Preliminary observations on the potential of gut membrane proteins of Haemonchus contortus as candidate vaccine antigens in sheep on naturally infected pasture.

    W.D Smith;J.A van Wyk;M.F van Strijp

  • Validation of the FAMACHA© eye colour chart using sensitivity/specificity analysis on two South African sheep farms.

    D.P. Reynecke;J.A. Van Wyk;Bruce Gummow;Bruce Gummow;P. Dorny

  • Two field strains of Haemonchus contortus resistant to rafoxanide.

    J. A. Van Wyk;F. S. Malan;H. M. Gerber;Regina M. R. Alves

  • Alternativas para o controle de nematoides gastrintestinais de pequenos ruminantes

    M. B. Molento;C. J. Veríssimo;A. T. Amarante;J. A. van Wyk

  • Control measures for some important and unusual goat diseases in southern Africa.

    G.F. Bath;J.A. van Wyk;K.P. Pettey

  • Wildlife parasites: Lessons for parasite control in livestock

    F.S. Malan;I.G. Horak;V. de Vos;V. de Vos;J.A. van Wyk

  • Moisture requirements for the migration of Haemonchus contortus third stage larvae out of faeces

    Tong Wang;J.A. van Wyk;A. Morrison;E.R. Morgan

  • Correspondence : a critique : to the editor

    J.A. Van Wyk;Cheryl M.E. McCrindle

Frequent Co-Authors

Jacques Cabaret
Jacques Cabaret INRAE : Institut national de recherche pour l'agriculture, l'alimentation et l'environnement
Gerald C. Coles
Gerald C. Coles University of Bristol
Neil Sargison
Neil Sargison University of Edinburgh
Rosina C. Krecek
Rosina C. Krecek University of Johannesburg
Marcelo Beltrão Molento
Marcelo Beltrão Molento Federal University of Paraná
Eric R. Morgan
Eric R. Morgan Queen's University Belfast
Ana Carolina de Souza Chagas
Ana Carolina de Souza Chagas Brazilian Agricultural Research Corporation
Marián Várady
Marián Várady Slovak Academy of Sciences
Jozef Vercruysse
Jozef Vercruysse Ghent University
Giuseppe Cringoli
Giuseppe Cringoli University of Naples Federico II

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Related Online Degrees & Career Pathways

Pursuing a degree in Animal Science or Veterinary studies opens doors to diverse career opportunities, many of which can be complemented by related disciplines. For instance, students interested in physical health can explore an accelerated exercise science degree online to better understand animal and human physiology in rehabilitative contexts.

For those focusing on behavioral aspects, becoming a Board Certified Behavior Analyst (BCBA) is a valuable pathway. Numerous bcba programs offer flexible options for specializing in behavior analysis, which can be crucial for working with animals or clients in therapeutic settings.

Additionally, professionals interested in the psychological dimensions may consider pursuing the cheapest online school psychology programs. This can enhance understanding of developmental and educational psychology, skills that are increasingly valued in veterinary and animal science fields.

Finally, for advanced clinical practice, exploring online apa-accredited psyd programs offers a pathway to become a licensed clinical psychologist, combining mental health expertise with animal-assisted interventions or research.

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