Citation Rankings
Highly Cited Researchers
University of Pretoria Highly Cited Researchers CitationMedical and Health Sciences / Veterinary Sciences Rankings 2025
The Citation Rankings (Highly Cited Researchers) highlight the most cited and influential researchers across a vast range of scientific fields, covering 197 main and sub-disciplines, including the Art and Humanities Citation Rankings and Social Sciences and Humanities Citation Rankings. This service, offered exclusively by AD Scientific Index, aims to provide a balanced perspective by excluding data from CERN and other statistical sources that disproportionately favor certain researchers, particularly in the social sciences and humanities. This unique approach addresses the advantages researchers with multi-author publications and CERN involvement hold over others. Furthermore, citation rankings help uncover rule violations and unethical practices within the research community. For more detailed citation analyses, explore the Scientists Last 6 Years Citation Index, Universities Total Citations Rankings 2025, and Universities Last 6 Years Citations Rankings 2025.
* Total Citation Counts Rankings
Ranking Based On Selection :1
Ticks
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
14,638
4,415
0.302
* Total Citation Counts Rankings
Ranking Based On Selection :2
ethnoveterinary medicine
biological activity
toxicity
medicinal plants
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
12,731
8,166
0.641
* Total Citation Counts Rankings
Ranking Based On Selection :3
Veterinary Epidemiology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,254
3,265
0.522
* Total Citation Counts Rankings
Ranking Based On Selection :4
Animal science
Production animal physiology
Meat science
Agriculture
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,216
2,995
0.482
* Total Citation Counts Rankings
Ranking Based On Selection :5
Veterinary epidemiology
Animal diseases
Zoonotic diseases
Veterinary medicine
Infectious diseases
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,521
2,310
0.511
* Total Citation Counts Rankings
Ranking Based On Selection :6
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,523
2,482
0.705
* Total Citation Counts Rankings
Ranking Based On Selection :7
veterinary science
horses
pathology
toxicology
viruses
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,335
1,298
0.389
* Total Citation Counts Rankings
Ranking Based On Selection :8
Veterinary Wildlife and Conservation Medicine
SDG - Life on Land and Climate Action
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,329
1,758
0.528
* Total Citation Counts Rankings
Ranking Based On Selection :9
Companion animal medicine
infectious disease
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,302
1,554
0.471
* Total Citation Counts Rankings
Ranking Based On Selection :10
Animal Science
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,225
1,044
0.324
* Total Citation Counts Rankings
Ranking Based On Selection :11
Ruminant nutrition
Dairy science
Feed additives
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,105
1,452
0.468
* Total Citation Counts Rankings
Ranking Based On Selection :12
Veterinary Toxicology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,829
1,357
0.480
* Total Citation Counts Rankings
Ranking Based On Selection :13
Animal Science
Animal breeding
Livestock genomics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,735
1,514
0.554
* Total Citation Counts Rankings
Ranking Based On Selection :14
Molecular Veterinary Parasitology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,498
1,143
0.458
* Total Citation Counts Rankings
Ranking Based On Selection :15
Ruminant Nutrition
Pasture Science
Animal Production
Feed Additives
GHG emissions
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,310
1,761
0.762
* Total Citation Counts Rankings
Ranking Based On Selection :16
animal science
animal breeding and genetics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,632
1,160
0.711
* Total Citation Counts Rankings
Ranking Based On Selection :17
Veterinary virology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,501
614
0.409
* Total Citation Counts Rankings
Ranking Based On Selection :18
Veterinary vaccines
ticks
acaricides
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,337
733
0.548
* Total Citation Counts Rankings
Ranking Based On Selection :19
Microbiology
Antimicrobial activity
Oral Microbiology
Phytomedicine
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,325
851
0.642
* Total Citation Counts Rankings
Ranking Based On Selection :20
veterinary pathology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,299
713
0.549
* Total Citation Counts Rankings
Ranking Based On Selection :21
Comparative Physiology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,207
899
0.745
* Total Citation Counts Rankings
Ranking Based On Selection :22
Poultry nutrition
welfare
production
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,194
812
0.680
* Total Citation Counts Rankings
Ranking Based On Selection :23
Molecular Parasitolgy
Veterinary Parasitology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,192
480
0.403
* Total Citation Counts Rankings
Ranking Based On Selection :24
Foodborne zoonotic pathogens(Shiga toxin-producing Escherichia coli
Campylobacter
Salmonella) and bacteriophages molecular epi
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,021
734
0.719
* Total Citation Counts Rankings
Ranking Based On Selection :25
Veterinary science
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
842
445
0.529
* Total Citation Counts Rankings
Rankings
61,683
205
16
Ranking Based On Selection: 1
Ivan Horak
University of Pretoria
Pretoria, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
14,638
4,415
0.302
* Total Citation Counts Rankings
Rankings
73,860
246
21
Ranking Based On Selection: 2
Lyndy Mcgaw
University of Pretoria
Pretoria, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
12,731
8,166
0.641
ethnoveterinary medicine
biological activity
toxicity
medicinal plants
* Total Citation Counts Rankings
Rankings
164,415
650
55
Ranking Based On Selection: 3
Geoffrey T Fosgate
University of Pretoria
Pretoria, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,254
3,265
0.522
Veterinary Epidemiology
* Total Citation Counts Rankings
Rankings
165,489
656
56
Ranking Based On Selection: 4
Edward C. Webb
University of Pretoria
Pretoria, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,216
2,995
0.482
Animal science
Production animal physiology
Meat science
Agriculture
* Total Citation Counts Rankings
Rankings
225,384
948
82
Ranking Based On Selection: 5
Peter N Thompson
University of Pretoria
Pretoria, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,521
2,310
0.511
Veterinary epidemiology
Animal diseases
Zoonotic diseases
Veterinary medicine
Infectious diseases
* Total Citation Counts Rankings
Rankings
281,860
1,217
106
Ranking Based On Selection: 6
MN Emmambux|Mohammad Naushad
University of Pretoria
Pretoria, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,523
2,482
0.705
* Total Citation Counts Rankings
Rankings
295,567
1,298
114
Ranking Based On Selection: 7
June Williams
University of Pretoria
Pretoria, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,335
1,298
0.389
veterinary science
horses
pathology
toxicology
viruses
* Total Citation Counts Rankings
Rankings
295,982
1,300
115
Ranking Based On Selection: 8
Leith Meyer
University of Pretoria
Pretoria, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,329
1,758
0.528
Veterinary Wildlife and Conservation Medicine
SDG - Life on Land and Climate Action
* Total Citation Counts Rankings
Rankings
297,969
1,316
118
Ranking Based On Selection: 9
Andrew Leisewitz
University of Pretoria
Pretoria, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,302
1,554
0.471
Companion animal medicine
infectious disease
* Total Citation Counts Rankings
Rankings
304,006
1,348
124
Ranking Based On Selection: 10
Norman Casey
University of Pretoria
Pretoria, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,225
1,044
0.324
* Total Citation Counts Rankings
Rankings
313,682
1,395
131
Ranking Based On Selection: 11
Lourens Erasmus
University of Pretoria
Pretoria, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,105
1,452
0.468
Ruminant nutrition
Dairy science
Feed additives
* Total Citation Counts Rankings
Rankings
338,504
1,528
147
Ranking Based On Selection: 12
Christo J Botha
University of Pretoria
Pretoria, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,829
1,357
0.480
Veterinary Toxicology
* Total Citation Counts Rankings
Rankings
347,951
1,580
155
Ranking Based On Selection: 13
Este Van Marle-Koster
University of Pretoria
Pretoria, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,735
1,514
0.554
Animal Science
Animal breeding
Livestock genomics
* Total Citation Counts Rankings
Rankings
373,646
1,716
169
Ranking Based On Selection: 14
Nicola Collins
University of Pretoria
Pretoria, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,498
1,143
0.458
Molecular Veterinary Parasitology
* Total Citation Counts Rankings
Rankings
396,447
1,849
185
Ranking Based On Selection: 15
Abubeker Hassen
University of Pretoria
Pretoria, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,310
1,761
0.762
Ruminant Nutrition
Pasture Science
Animal Production
Feed Additives
GHG emissions
* Total Citation Counts Rankings
Rankings
506,896
2,449
242
Ranking Based On Selection: 16
Carina Visser
University of Pretoria
Pretoria, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,632
1,160
0.711
animal science
animal breeding and genetics
* Total Citation Counts Rankings
Rankings
535,319
2,615
258
Ranking Based On Selection: 17
Melvyn Quan
University of Pretoria
Pretoria, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,501
614
0.409
* Total Citation Counts Rankings
Rankings
575,053
2,855
283
Ranking Based On Selection: 18
Christine Maritz Olivier
University of Pretoria
Pretoria, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,337
733
0.548
Veterinary vaccines
ticks
acaricides
* Total Citation Counts Rankings
Rankings
578,125
2,877
287
Ranking Based On Selection: 19
FS Botha
University of Pretoria
Pretoria, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,325
851
0.642
Microbiology
Antimicrobial activity
Oral Microbiology
Phytomedicine
* Total Citation Counts Rankings
Rankings
585,206
2,914
291
Ranking Based On Selection: 20
Sarah Clift
University of Pretoria
Pretoria, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,299
713
0.549
veterinary pathology
* Total Citation Counts Rankings
Rankings
610,889
3,079
312
Ranking Based On Selection: 21
Edward Snelling
University of Pretoria
Pretoria, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,207
899
0.745
Comparative Physiology
* Total Citation Counts Rankings
Rankings
614,699
3,093
313
Ranking Based On Selection: 22
Thobela Nkukwana
University of Pretoria
Pretoria, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,194
812
0.680
Poultry nutrition
welfare
production
* Total Citation Counts Rankings
Rankings
615,439
3,096
314
Ranking Based On Selection: 23
Paul Tshepo Matjila
University of Pretoria
Pretoria, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,192
480
0.403
Molecular Parasitolgy
Veterinary Parasitology
* Total Citation Counts Rankings
Rankings
670,901
3,403
342
Ranking Based On Selection: 24
Musafiri Karama
University of Pretoria
Pretoria, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,021
734
0.719
Foodborne zoonotic pathogens(Shiga toxin-producing Escherichia coli
Campylobacter
Salmonella) and bacteriophages molecular epi
* Total Citation Counts Rankings
Rankings
740,323
3,804
397
Ranking Based On Selection: 25
Martin Schulman
University of Pretoria
Pretoria, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
842
445
0.529