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D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Animal Science and Veterinary 33 1986 1816 574 479 85 4272

Ronald J. Erskine publications per year

The chart shows the history of publications by Ronald J. Erskine between 1985 and 2024, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Ronald J. Erskine published across 40 years, from 1985 to 2024, averaging 2.3 papers a year. Output peaked at 7 publications in 2013. 5 of the 92 publications appeared in the last two years.

No. of publications
2 4 6
Bar chart. Horizontal axis: year, 1985 to 2024. Vertical axis: number of publications, 0 to 7. Peak 7 publications in 2013. 1985: 1 publication 1986: 0 publications 1987: 0 publications 1988: 2 publications 1989: 0 publications 1990: 2 publications 1991: 3 publications 1992: 3 publications 1993: 3 publications 1994: 3 publications 1995: 2 publications 1996: 3 publications 1997: 2 publications 1998: 2 publications 1999: 2 publications 2000: 3 publications 2001: 1 publication 2002: 4 publications 2003: 2 publications 2004: 2 publications 2005: 2 publications 2006: 0 publications 2007: 3 publications 2008: 3 publications 2009: 3 publications 2010: 1 publication 2011: 2 publications 2012: 5 publications 2013: 7 publications 2014: 1 publication 2015: 6 publications 2016: 1 publication 2017: 3 publications 2018: 0 publications 2019: 6 publications 2020: 3 publications 2021: 1 publication 2022: 0 publications 2023: 2 publications 2024: 3 publications
1985 2024

92 publications in total across all disciplines

View publications per year as a table
Ronald J. Erskine: publications per year, 1985 to 2024
Year Publications
1985 1
1986 0
1987 0
1988 2
1989 0
1990 2
1991 3
1992 3
1993 3
1994 3
1995 2
1996 3
1997 2
1998 2
1999 2
2000 3
2001 1
2002 4
2003 2
2004 2
2005 2
2006 0
2007 3
2008 3
2009 3
2010 1
2011 2
2012 5
2013 7
2014 1
2015 6
2016 1
2017 3
2018 0
2019 6
2020 3
2021 1
2022 0
2023 2
2024 3
Total 92
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Ronald J. Erskine publications per year - data summary

  • Ronald J. Erskine, a Animal Science and Veterinary scholar from Michigan State University, has 92 publications recorded across 40 years, from 1985 to 2024.
  • The oldest publication on record dates to 1985 and the most recent to 2024.
  • The most productive year is 2013, with 7 publications.
  • The least productive years with any output are 1985, 2001, 2010, 2014 and others, with 1 publication each.
  • 6 of the 40 years in the span carry no publications at all (1986, 1987, 1989, 2006 and others).
  • The rate of publication averages 2.3 papers per year over the whole span, or 2.7 per year counting only the 34 years with at least one publication.
  • The last 5 years on the chart (2020-2024) hold 9 publications, 10% of the career total.
  • Split into equal eras - 1985-1998: 26 publications (1.9 per year); 1999-2012: 33 publications (2.4 per year); 2013-2024: 33 publications (2.8 per year).
  • Comparing the opening and closing eras, the overall trend of publication is rising.

Ronald J. Erskine 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 Ronald J. Erskine sits on this spectrum.

No. of scientists
25 50 75 100
Bar chart with 84 bars. Horizontal axis: publications, 29–33 to 442+. Vertical axis: number of scientists, 0 to 109. Most scientists, 109, have 119–123 publications. The last bar groups every scientist with 442 publications or more. The highlighted bar, 84–88 publications, is where this scientist sits. 29–33 publications: 1 scientist 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
29–33 publications 442+

This scientist: 85 publications — 18th percentile

18% of scientists in this discipline score the same or lower.

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

View publications distribution as a table
Number of Animal Science and Veterinary scientists by publication count, Research.com 2026 ranking edition. Based on 3,155 ranked scientists.
Publications Scientists This scientist
29–33 1
34–38 6
39–43 17
44–48 23
49–53 28
54–58 44
59–63 66
64–68 75
69–73 71
74–78 85
79–83 108
84–88 105 85
89–93 84
94–98 103
99–103 97
104–108 95
109–113 89
114–118 88
119–123 109
124–128 93
129–133 89
134–138 95
139–143 92
144–148 80
149–153 75
154–158 74
159–163 67
164–168 53
169–173 62
174–178 63
179–183 50
184–188 55
189–193 50
194–198 27
199–203 44
204–208 31
209–213 28
214–218 38
219–223 33
224–228 36
229–233 29
234–238 35
239–243 23
244–248 24
249–253 29
254–258 28
259–263 21
264–268 25
269–273 11
274–278 18
279–283 13
284–288 18
289–293 10
294–298 12
299–303 11
304–308 15
309–313 14
314–318 14
319–323 8
324–328 8
329–333 13
334–338 14
339–343 13
344–348 10
349–353 11
354–358 5
359–363 8
364–368 8
369–373 6
374–378 7
379–383 8
384–388 3
389–393 4
394–398 5
399–403 8
404–408 5
409–413 4
414–418 3
419–423 8
424–428 5
429–433 3
434–438 5
439–441 5
442+ 99
Download as CSV

Ronald J. Erskine publication distribution in Animal Science and Veterinary in 2026 - data summary

  • The chart plots the publication count of all 3,155 Animal Science and Veterinary scientists ranked by Research.com in 2026, grouped into 84 ranges running from 29–33 to 442+ publications.
  • Ronald J. Erskine, a Animal Science and Veterinary scholar from Michigan State University, records 85 publications - the 18th percentile of the discipline.
  • 18% of ranked Animal Science and Veterinary scientists score the same or lower than Ronald J. Erskine, and about 82% score higher.
  • The median of the discipline falls in the 139–143 publications range, and Ronald J. Erskine ranks below the median.
  • The most crowded range is 119–123 publications, holding 109 scientists (3% of the field).
  • 47% of the field sits in the lowest quarter of the value range (up to 129–133 publications), so the distribution leans towards the lower end of the scale.
  • The final bar has no upper bound: it groups every scientist with 442 publications or more, 99 scientists in all (3% of the field).

Ronald J. Erskine 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 Ronald J. Erskine sits on this spectrum.

No. of scientists
50 100 150
Bar chart with 58 bars. Horizontal axis: D-Index, 20 to 77+. Vertical axis: number of scientists, 0 to 158. Most scientists, 158, have 31 D-Index. The last bar groups every scientist with 77 D-Index or more. The highlighted bar, 33 D-Index, is where this scientist sits. 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.

View D-Index distribution as a table
Number of Animal Science and Veterinary scientists by D-index, Research.com 2026 ranking edition. Based on 3,155 ranked scientists.
D-Index Scientists This scientist
20 5
21 22
22 31
23 44
24 53
25 66
26 80
27 101
28 106
29 116
30 154
31 158
32 143
33 137 33
34 126
35 134
36 112
37 115
38 105
39 111
40 107
41 87
42 74
43 62
44 61
45 41
46 51
47 43
48 28
49 47
50 40
51 34
52 33
53 43
54 16
55 32
56 21
57 18
58 28
59 33
60 17
61 21
62 18
63 21
64 9
65 20
66 11
67 16
68 12
69 17
70 13
71 15
72 11
73 11
74 14
75 5
76 6
77+ 100
Download as CSV

Ronald J. Erskine D-index placement in Animal Science and Veterinary in 2026 - data summary

  • The chart plots the discipline H-index (D-index) of all 3,155 Animal Science and Veterinary scientists ranked by Research.com in 2026, grouped into 58 ranges running from 20 to 77+ D-Index.
  • Ronald J. Erskine, a Animal Science and Veterinary scholar from Michigan State University, records 33 D-Index - the 39th percentile of the discipline.
  • 39% of ranked Animal Science and Veterinary scientists score the same or lower than Ronald J. Erskine, and about 61% score higher.
  • The median of the discipline falls in the 36 D-Index range, and Ronald J. Erskine ranks below the median.
  • The most crowded range is 31 D-Index, holding 158 scientists (5% of the field).
  • 43% of the field sits in the lowest quarter of the value range (up to 34 D-Index), so the distribution leans towards the lower end of the scale.
  • The final bar has no upper bound: it groups every scientist with 77 D-Index or more, 100 scientists in all (3% of the field).

Overview

Ronald J. Erskine is affiliated with Michigan State University in the United States. Their research primarily focuses on agricultural and biological sciences, with specific expertise in areas such as immunology and microbiology, as well as biochemistry, genetics, and molecular biology. Their work frequently intersects with subfields including agronomy and crop science, food science, microbiology, molecular biology, and genetics.

The scientist has contributed extensively to topics related to milk quality and mastitis in dairy cows, probiotics and fermented foods, microbial infections and disease research, gut microbiota and health, T-cell and retrovirus studies, animal disease management and epidemiology, and vector-borne animal diseases.

Recent publications authored by Ronald J. Erskine include:

  • Persistent effects of intramammary ceftiofur treatment on the gut microbiome and antibiotic resistance in dairy cattle, 2023, Animal Microbiome
  • Comparison of Minimum Inhibitory Concentrations of Selected Antimicrobials for Non-Aureus Staphylococci, Enterococci, Lactococci, and Streptococci Isolated from Milk Samples of Cows with Clinical Mastitis, 2024, Antibiotics
  • Herd management practices associated with bovine leukemia virus incidence rate in Michigan dairy farms, 2020, Preventive Veterinary Medicine
  • Selection of antibiotic-resistant bacterial populations in the dairy cow gut following intramuscular ceftiofur treatment for metritis, 2024, Journal of Dairy Science
  • Confirmed bacteriological diagnosis and cure of nonsevere gram-positive clinical mastitis cases enrolled in a randomized clinical trial based on results of on-farm culture, 2024, JDS Communications

Their frequent publication venues include Animal Microbiome, Antibiotics, Preventive Veterinary Medicine, Journal of Dairy Science, and JDS Communications.

Ronald J. Erskine collaborates regularly with multiple researchers, including P.L. Ruegg, Bo Norby, Karla Vasco, Samantha Carbonell, and Bailey Bowcutt. The coauthorship patterns suggest a collaborative approach across related fields in dairy science and microbiology.

Best Publications

  • Trends in antibacterial susceptibility of mastitis pathogens during a seven-year period.

    R.J. Erskine;R.D. Walker;C.A. Bolin;P.C. Bartlett

  • Immunity and mastitis Some new ideas for an old disease

    Jeanne L Burton;Ronald J Erskine

  • 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

  • Mastitis therapy and pharmacology

    Ronald J Erskine;Sarah Wagner;Fred J DeGraves

  • Efficacy of Systemic Ceftiofur as a Therapy for Severe Clinical Mastitis in Dairy Cattle

    R.J. Erskine;P.C. Bartlett;J.L. VanLente;C.R. Phipps

  • Options for the control of bovine leukemia virus in dairy cattle.

    Paul C. Bartlett;Lorraine M. Sordillo;Todd M. Byrem;Bo Norby

  • Bovine leukemia virus and cow longevity in Michigan dairy herds

    P.C. Bartlett;B. Norby;T.M. Byrem;A. Parmelee

  • A comparison of production and management between Wisconsin organic and conventional dairy herds

    K. Sato;P.C. Bartlett;R.J. Erskine;J.B. Kaneene

  • Glucocorticoid receptor down-regulation in neutrophils of periparturient cows.

    Mara T. Preisler;Patty S. D. Weber;Robert J. Tempelman;Ron J. Erskine

  • Association between bovine leukemia virus, production, and population age in Michigan dairy herds.

    R.J. Erskine;P.C. Bartlett;T.M. Byrem;C.L. Render

  • Effect of infection with bovine leukemia virus on milk production in Michigan dairy cows

    B. Norby;P.C. Bartlett;T.M. Byrem;R.J. Erskine

  • Theory, use, and realities of efficacy and food safety of antimicrobial treatment of acute coliform mastitis.

    Erskine Rj;Tyler Jw;Riddell Mg;Wilson Rc

  • Glucocorticoid receptor expression profiles in mononuclear leukocytes of periparturient Holstein cows

    M.T. Preisler;P.S.D. Weber;R.J. Tempelman;R.J. Erskine

  • Clinical responses to intramammary endotoxin infusion in dairy cows subjected to feed restriction.

    K.H. Perkins;M.J. VandeHaar;J.L. Burton;J.S. Liesman

  • Comparison of Antimicrobial Susceptibility of Staphylococcus aureus Isolated from Bulk Tank Milk in Organic and Conventional Dairy Herds in the Midwestern United States and Denmark

    K. Sato;T. W. Bennedsgaard;P. C. Bartlett;R. J. Erskine

  • The effect of ascorbic acid and L-histidine therapy on acute mammary inflammation in dairy cattle.

    A. Chaiyotwittayakun;R.J. Erskine;P.C. Bartlett;T.H. Herdt

  • Intramammary administration of gentamicin as treatment for experimentally induced Escherichia coli mastitis in cows.

    Erskine Rj;Wilson Rc;Riddell Mg;Tyler Jw

  • Factors affecting serum selenium and vitamin E concentrations in dairy cows

    G. Y. Miller;P. C. Bartlett;R. J. Erskine;K. L. Smith

  • Effects of parenteral administration of vitamin E on health of periparturient dairy cows.

    Ronald J. Erskine;Paul C. Bartlett;Thomas Herdt;Patrick Gaston

  • Antimicrobial treatment of clinical mastitis in the eastern United States: The influence of dairy farmers' mastitis management and treatment behavior and attitudes

    J. Kayitsinga;R.L. Schewe;G.A. Contreras;R.J. Erskine

  • Advances in the Therapy for Mastitis

    Ronald J. Erskine;Ronald J. Erskine;Ronald J. Erskine;John H. Kirk;John H. Kirk;John H. Kirk;Jeff W. Tyler;Jeff W. Tyler;Jeff W. Tyler;Fred J. DeGraves;Fred J. DeGraves;Fred J. DeGraves

  • Prevalence and pattern of antimicrobial susceptibility in Escherichia coli isolated from pigs reared under antimicrobial-free and conventional production methods.

    Christine A. Bunner;Bo Norby;Paul C. Bartlett;Ronald J. Erskine

  • Invited review: Bovine leukemia virus-Transmission, control, and eradication.

    Alessa Kuczewski;Karin Orsel;Herman W. Barkema;Steve Mason

  • Herd-level determinants of bovine leukaemia virus prevalence in dairy farms.

    Ronald J Erskine;Paul C Bartlett;Todd M Byrem;Chelsea L Render

  • Using a herd profile to determine age-specific prevalence of bovine leukemia virus in michigan dairy herds.

    Ronald J. Erskine;Paul C. Bartlett;Todd M. Byrem;Chelsea L. Render

  • Bovine Leukemia Virus Infection in Dairy Cattle: Effect on Serological Response to Immunization against J5 Escherichia coli Bacterin

    Ronald J. Erskine;Paul C. Bartlett;Kimberly M. Sabo;Lorraine M. Sordillo

  • Epidemiologic attributes of invasive non-typhoidal Salmonella infections in Michigan, 1995-2001

    M. Mokhtar Arshad;Melinda J. Wilkins;Melinda J. Wilkins;Frances P. Downes;M. Hossein Rahbar

  • A registry-based study on the association between human salmonellosis and routinely collected parameters in Michigan, 1995-2001

    M. Mokhtar Arshad;Melinda J. Wilkins;Frances P. Downes;M. Hossein Rahbar

  • Efficacy of Intramuscular Oxytetracycline as a Dry Cow Treatment for Staphylococcus aureus Mastitis

    R.J. Erskine;P.C. Bartlett;P.C. Crawshaw;D.M. Gombas

  • Changes in Tetracycline Susceptibility of Enteric Bacteria following Switching to Nonmedicated Milk Replacer for Dairy Calves

    John B. Kaneene;Lorin D. Warnick;Carole A. Bolin;Ronald J. Erskine

Frequent Co-Authors

Paul C. Bartlett
Paul C. Bartlett Michigan State University
Bo Norby
Bo Norby Michigan State University
John B. Kaneene
John B. Kaneene Michigan State University
Robert J. Tempelman
Robert J. Tempelman Michigan State University
Carole A. Bolin
Carole A. Bolin Michigan State University
Lorraine M. Sordillo
Lorraine M. Sordillo Michigan State University
Lorin D. Warnick
Lorin D. Warnick Cornell University
Herman W. Barkema
Herman W. Barkema University of Calgary
Karin Orsel
Karin Orsel University of Calgary
Thomas H. Herdt
Thomas H. Herdt Michigan State University

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