World's Best Scientists 2026 revealed!

D-Index & Metrics

Animal Science and Veterinary

D-Index
35
Citations
4062
World Ranking
1773
National Ranking
510

Barbara E. Gillespie 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 Barbara E. Gillespie 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: 72 publications — 10th percentile

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

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

Barbara E. Gillespie 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 Barbara E. Gillespie 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: 35 D-Index — 47th percentile

47% of scientists in this discipline score the same or lower.

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

Overview

Barbara E. Gillespie is affiliated with the University of Tennessee at Knoxville in the United States. Their research focuses primarily on topics related to agricultural and biological sciences, with notable contributions in biochemistry, genetics, and molecular biology.

The scientist's main fields of study encompass Agricultural and Biological Sciences and Biochemistry, Genetics and Molecular Biology. Their work further extends into specific subfields including Agronomy and Crop Science, Food Science, Endocrinology, Microbiology, and Ecology.

Key topics covered by their research include Milk Quality and Mastitis in Dairy Cows, Probiotics and Fermented Foods, Microbial Infections and Disease Research, Escherichia coli Research Studies, Bacteriophages and Microbial Interactions, Salmonella and Campylobacter Epidemiology, and Antibiotic Resistance in Bacteria.

Frequent publication venues for Barbara E. Gillespie's research include Animals, Journal of Dairy Science, Microbial Pathogenesis, Zoonoses and Public Health, and Foodborne Pathogens and Disease.

Frequent co-authors collaborating with this researcher are:

  • Oudessa Kerro Dego
  • Ximin Zeng
  • Jun Lin
  • Getahun E. Agga
  • Liu Cao

Recent papers authored or co-authored by Barbara E. Gillespie include:

  • Antimicrobial Resistance of Major Bacterial Pathogens from Dairy Cows with High Somatic Cell Count and Clinical Mastitis, 2021, Animals
  • Genetic diversity and virulence characteristics of Staphylococcus aureus isolates from cases of bovine mastitis, 2020, Microbial Pathogenesis
  • Isolation and characterization of Escherichia albertii in poultry at the pre-harvest level, 2021, Zoonoses and Public Health
  • Prevalence of Antimicrobial Resistant and Extended-Spectrum Beta-Lactamase-producing Escherichia coli in Dairy Cattle Farms in East Tennessee, 2022, Foodborne Pathogens and Disease
  • Isolation and characterization of Escherichia albertii originated from the broiler farms in Mississippi and Alabama, 2022, Veterinary Microbiology

Best Publications

  • Antimicrobial susceptibility of coagulase-negative Staphylococcus species isolated from bovine milk

    A A Sawant;B E Gillespie;S P Oliver

  • Clinical, epidemiological and molecular characteristics of Streptococcus uberis infections in dairy herds.

    R. N. Zadoks;B. E. Gillespie;H. W. Barkema;O. C. Sampimon

  • Microbiological Procedures for the Diagnosis of Bovine Udder Infection and Determination of Milk Quality

    S.P. Oliver;M.J. Lewis;B.E. Gillespie;H.H. Dowlen

  • Phenotypic and genotypic antimicrobial resistance patterns of Escherichia coli isolated from dairy cows with mastitis.

    Velusamy Srinivasan;Barbara E. Gillespie;Mark J. Lewis;Lien T. Nguyen

  • Application of SYBR green real-time PCR assay for specific detection of Salmonella spp. in dairy farm environmental samples.

    Hyang-Mi Nam;Velusamy Srinivasan;Barbara E. Gillespie;Shelton E. Murinda

  • Prevalence and persistence of coagulase-negative Staphylococcus species in three dairy research herds.

    B E Gillespie;S I Headrick;S Boonyayatra;S P Oliver

  • Simultaneous detection of mastitis pathogens, Staphylococcus aureus, Streptococcus uberis, and Streptococcus agalactiae by multiplex real-time polymerase chain reaction.

    B.E. Gillespie;S.P. Oliver

  • Efficacy of extended ceftiofur intramammary therapy for treatment of subclinical mastitis in lactating dairy cows.

    S.P. Oliver;B.E. Gillespie;S.J. Headrick;H. Moorehead

  • Prevalence and molecular characterization of Escherichia coli O157:H7 in bulk tank milk and fecal samples from cull cows: a 12-month survey of dairy farms in east Tennessee.

    S. E. Murinda;L. T. Nguyen;S. J. Ivey;B. E. Gillespie

  • Prepartum Antibiotic Treatment of Heifers: Milk Production, Milk Quality and Economic Benefit

    S.P. Oliver;M.J. Lewis;B.E. Gillespie;H.H. Dowlen

  • Influence of prepartum antibiotic therapy on intramammary infections in primigravid heifers during early lactation.

    S.P. Oliver;M.J. Lewis;B.E. Gillespie;H.H. Dowlen

  • Role of horn flies (Haematobia irritans) in Staphylococcus aureus-induced mastitis in dairy heifers.

    W E Owens;S P Oliver;B E Gillespie;C H Ray

  • Prevalence of Enterotoxin and Toxic Shock Syndrome Toxin Genes in Staphylococcus aureus Isolated from Milk of Cows with Mastitis

    Velusamy Srinivasan;Ashish A. Sawant;Barbara E. Gillespie;Susan J. Headrick

  • Epidemiology of Streptococcus uberis intramammary infections in a dairy herd.

    B. M. Jayarao;B. E. Gillespie;M. J. Lewis;H. H. Dowlen

  • Extended ceftiofur therapy for treatment of experimentally-induced Streptococcus uberis mastitis in lactating dairy cattle.

    S.P. Oliver;R.A. Almeida;B.E. Gillespie;S.J. Headrick

  • Characterization of bovine conceptus proteins produced during the peri- and postattachment periods of early pregnancy.

    James D. Godkin;Ben J. Lifsey;Barbara E. Gillespie

  • Efficacy of extended pirlimycin hydrochloride therapy for treatment of environmental Streptococcus spp and Staphylococcus aureus intramammary infections in lactating dairy cows.

    Gillespie Be;Moorehead H;Lunn P;Dowlen Hh

  • A single nucleotide in the promoter region modulates the expression of the β-lactamase OXA-61 in Campylobacter jejuni

    Ximin Zeng;Samantha Brown;Barbara Gillespie;Jun Lin

  • Influence of prepartum pirlimycin hydrochloride or penicillin-novobiocin therapy on mastitis in heifers during early lactation.

    S.P. Oliver;B.E. Gillespie;S.J. Ivey;M.J. Lewis

  • Molecular characterization of Salmonella spp. isolated from bulk tank milk and cull dairy cow fecal samples.

    S. E. Murinda;L. T. Nguyen;S. J. Ivey;B. E. Gillespie

  • Identification and Differentiation of Coagulase-Negative Staphylococcus aureus by Polymerase Chain Reaction.

    Karl Matthews;J. Roberson;B. E. Gillespie;D. A. Luther

  • Prevention of Bovine Mastitis by a Premilking Teat Disinfectant Containing Chlorous Acid and Chlorine Dioxide

    S. P. Oliver;M. J. Lewis;T. L. Ingle;B. E. Gillespie

  • Antibiotic Residues and Prevalence of Mastitis Pathogen Isolation in Heifers During Early Lactation Following Prepartum Antibiotic Therapy

    S. P. Oliver;M. J. Lewis;B. E. Gillespie;H. H. Dowlen

  • Antimicrobial Resistance of Staphylococcus aureus Isolates from Dairy Cows and Genetic Diversity of Resistant Isolates.

    Reta Duguma Abdi;Barbara Erin Gillespie;Jacqueline Vaughn;Caitlin Merrill

  • Deoxyribonucleic acid fingerprinting of Staphylococcus aureus from heifer mammary secretions and from horn flies.

    B.E. Gillespie;W.E. Owens;S.C. Nickerson;S.P. Oliver

  • Comparison of Clonal Relatedness and Antimicrobial Susceptibility of fecal Escherichia coli from healthy dogs and their owners

    Katherine A. Stenske;David A. Bemis;Barbara E. Gillespie;Doris H. D'Souza

Frequent Co-Authors

Stephen P. Oliver
Stephen P. Oliver University of Tennessee at Knoxville
H.H. Dowlen
H.H. Dowlen University of Tennessee at Knoxville
Ynte H. Schukken
Ynte H. Schukken Wageningen University & Research
Arnold M. Saxton
Arnold M. Saxton University of Tennessee at Knoxville
Merlin D Lindemann
Merlin D Lindemann University of Kentucky
Herman W. Barkema
Herman W. Barkema University of Calgary
Ruth N. Zadoks
Ruth N. Zadoks University of Sydney
Pina M. Fratamico
Pina M. Fratamico United States Department of Agriculture
Robert J Collier
Robert J Collier University of Arizona

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Related Online Degrees & Career Pathways

Exploring a degree in Animal Science or Veterinary studies in the USA opens up diverse career pathways. Beyond traditional veterinary roles, students can consider related fields that combine science with counseling and management skills. For instance, those interested in supporting animal owners and their families may benefit from mft master's programs online, which focus on mental health and relational dynamics.

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For those passionate about animal care, the comprehensive overview of careers with animals highlights a variety of opportunities, including wildlife biologists, animal behaviorists, and zookeepers. These roles often require a blend of academic knowledge and practical experience.

Additionally, leadership positions such as athletic administration may appeal to students seeking managerial roles linked to animal studies, especially in facilities with veterinary sports medicine programs. Understanding the athletic director education requirements can guide students aiming for these administrative and organizational careers.

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