World's Best Scientists 2026 revealed!

D-Index & Metrics

Animal Science and Veterinary

D-Index
49
Citations
8860
World Ranking
650
National Ranking
210

L. L. Southern 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 L. L. Southern 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: 162 publications — 62nd percentile

62% of scientists in this discipline score the same or lower.

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

L. L. Southern 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 L. L. Southern 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: 49 D-Index — 80th percentile

80% of scientists in this discipline score the same or lower.

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

Research.com Recognitions

  • 2013 - ASAS Fellow: Research Category, American Society of Animal Science
  • 1997 - American Feed Industry Association Award in Nonruminant Nutrition Research, American Society of Animal Science

Overview

L. L. Southern is affiliated with the Louisiana State University Agricultural Center in the United States. Their work is connected to the fields of animal science and nutrition, particularly focusing on research involving nonruminant nutrition.

Throughout their career, Southern has been recognized with multiple awards, including the ASAS Fellow: Research Category from the American Society of Animal Science in 2013. Earlier, in 1997, Southern received the American Feed Industry Association Award in Nonruminant Nutrition Research from the same society.

Southern's research contributions are predominantly related to animal nutritional science, indicated by the awards received in these areas. This positions them within the broader agricultural and animal sciences research community, particularly emphasizing nutrition of nonruminant species.

Best Publications

  • Estimation of nutrient requirements using broken-line regression analysis.

    K. R. Robbins;A. M. Saxton;L. L. Southern

  • Growth promotion effects and plasma changes from feeding high dietary concentrations of zinc and copper to weanling pigs (regional study).

    G M Hill;G L Cromwell;T D Crenshaw;C R Dove

  • Effect of chromium picolinate on growth and serum and carcass traits of growing-finishing pigs

    T G Page;L L Southern;T L Ward;D L Thompson

  • Comparison of inorganic and organic selenium sources for broilers.

    R. L. Payne;L. L. Southern

  • Influence of dietary protein level, amino acid supplementation, and dietary energy levels on growing-finishing pig performance and carcass composition.

    B. J. Kerr;L. L. Southern;T. D. Bidner;K. G. Friesen

  • Effect of chromium tripicolinate on growth, glucose tolerance, insulin sensitivity, plasma metabolites, and growth hormone in pigs.

    E. K. Amoikon;J. M. Fernandez;L. L. Southern;D. L. Thompson

  • Effect of inorganic versus organic selenium on hen production and egg selenium concentration

    R. L. Payne;T. K. Lavergne;L. L. Southern

  • Glycine Supplementation to Low Protein, Amino Acid-Supplemented Diets Supports Optimal Performance of Broiler Chicks

    D. W. Dean;T. D. Bidner;L. L. Southern

  • Influence of chromium picolinate on glucose usage and metabolic criteria in growing Holstein calves.

    L. D. Bunting;J. M. Fernandez;D. L. Thompson;L. L. Southern

  • Effects of betaine on growth, carcass characteristics, pork quality, and plasma metabolites of finishing pigs.

    J O Matthews;L L Southern;A D Higbie;M A Persica

  • Uric acid, urea, and ammonia concentrations in serum and uric acid concentration in excreta as indicators of amino acid utilization in diets for broilers

    A. L. Donsbough;S. Powell;A. Waguespack;T. D. Bidner

  • Effects of supplemental L-tryptophan on serotonin, cortisol, intestinal integrity, and behavior in weanling piglets,

    S.J. Koopmans;A.C. Guzik;J. van der Meulen;R.A. Dekker

  • Influence of chromium tripicolinate on glucose metabolism and nutrient partitioning in growing lambs

    L. Kitchalong;J. M. Fernandez;L. D. Bunting;L. L. Southern

  • Effect of phytase addition and dietary calcium and phosphorus levels on plasma metabolites and ileal and total-tract nutrient digestibility in pigs.

    S. L. Johnston;S. B. Williams;L. L. Southern;T. D. Bidner

  • Changes in glutathione peroxidase and tissue selenium concentrations of broilers after consuming a diet adequate in selenium.

    R. L. Payne;L. L. Southern

  • Effect of chromium picolinate on growth, body composition, and tissue accretion in pigs.

    S. L. Boleman;S. J. Boleman;T. D. Bidner;L. L. Southern

  • Effect of dietary fiber or fat in low-crude protein, crystalline amino acid-supplemented diets for finishing pigs.

    T A Knowles;L L Southern;T D Bidner;B J Kerr

  • Interactive effects of betaine, crude protein, and net energy in finishing pigs

    J O Matthews;L L Southern;J E Pontif;A D Higbie

  • Effect of mannan oligosaccharides on growth performance of weanling pigs.

    F. M. LeMieux;L. L. Southern;T. D. Bidner

  • Effect of chromium picolinate and chromium propionate on glucose and insulin kinetics of growing barrows and on growth and carcass traits of growing-finishing barrows.

    J. O. Matthews;L. L. Southern;J. M. Fernandez;J. E. Pontif

  • Phytase supplementation improved growth performance and bone characteristics in broilers fed varying levels of dietary calcium

    S. S. Powell;T. D. Bidner;L. L. Southern

  • Additivity of effects from dietary copper and zinc on growth performance and fecal microbiota of pigs after weaning.

    V. G. Pérez;A. M. Waguespack;T. D. Bidner;L. L. Southern

  • Interactive effects of sodium zeolite-A and copper in growing swine: growth, and bone and tissue mineral concentrations.

    T. L. Ward;K. L. Watkins;L. L. Southern;P. G. Hoyt

  • The effects of phytase on growth performance and intestinal transit time of broilers fed nutritionally adequate diets and diets deficient in calcium and phosphorus

    B. C. Watson;J. O. Matthews;L. L. Southern;J. L. Shelton

  • Effects of microbial phytase, low calcium and phosphorus, and removing the dietary trace mineral premix on carcass traits, pork quality, plasma metabolites, and tissue mineral content in growing-finishing pigs.

    J. L. Shelton;L. L. Southern;F. M. LeMieux;T. D. Bidner

  • Effects of dietary soy isoflavones on growth, carcass traits, and meat quality in growing-finishing pigs.

    R L Payne;T D Bidner;L L Southern;J P Geaghan

Frequent Co-Authors

T. D. Bidner
T. D. Bidner Louisiana State University Agricultural Center
Brian J. Kerr
Brian J. Kerr Agricultural Research Service
Merlin D Lindemann
Merlin D Lindemann University of Kentucky
Göran Hallmans
Göran Hallmans Umeå University
Dennis D. French
Dennis D. French University of Illinois at Urbana-Champaign
Kim Overvad
Kim Overvad Aarhus University
Michael Ellis
Michael Ellis University of Illinois at Urbana-Champaign
Olayiwola Adeola
Olayiwola Adeola Purdue University West Lafayette
Floyd K. Mckeith
Floyd K. Mckeith University of Illinois at Urbana-Champaign
Carl M Parsons
Carl M Parsons University of Illinois at Urbana-Champaign

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Related Online Degrees & Career Pathways

For students interested in expanding their expertise beyond Animal Science and Veterinary studies, pursuing related online degrees can open diverse career paths. Programs that are bacb accredited schools offer rigorous training for those looking to become Board Certified Behavior Analysts, which complements animal behavior knowledge with human behavioral intervention skills.

Similarly, those passionate about mental health within veterinary care or related fields might explore nasp accredited school psychology programs. These programs provide specialized training in educational psychology, benefiting professionals who work with children and families affected by animal-assisted therapy or animal welfare education.

Additionally, online psychology programs such as online psyd programs accredited by the APA allow students to gain advanced clinical skills without GRE requirements, making advanced mental health studies more accessible, especially for those balancing work in veterinary or animal sciences.

For those interested in supporting recovery and resilience, degrees focused on addiction and recovery are crucial. Programs like the online substance abuse counseling degree prepare graduates to address behavioral health challenges, which can intersect with animal-assisted interventions and holistic care models.

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