World's Best Scientists 2026 revealed!

D-Index & Metrics

Animal Science and Veterinary

D-Index
44
Citations
6510
World Ranking
884
National Ranking
271

Research.com Recognitions

  • 2009 - American Feed Industry Association Award in Ruminant Nutrition Research, American Society of Animal Science

Overview

Harvey C. Freetly is affiliated with the Agricultural Research Service in the United States. Their research primarily spans the fields of Agricultural and Biological Sciences and Biochemistry, Genetics and Molecular Biology, with a focus on subfields such as Agronomy and Crop Science, Genetics, Animal Science and Zoology, Molecular Biology, and Rheumatology.

The scientist's research topics cover a variety of areas including:

  • Ruminant Nutrition and Digestive Physiology
  • Genetic and phenotypic traits in livestock
  • Reproductive Physiology in Livestock
  • Effects of Environmental Stressors on Livestock
  • Genetic Mapping and Diversity in Plants and Animals
  • Folate and B Vitamins Research
  • Gestational Diabetes Research and Management

Recent publications by Harvey C. Freetly include:

  • Digestive tract microbiota of beef cattle that differed in feed efficiency, 2020, Journal of Animal Science
  • Heritability and genetic correlations of feed intake, body weight gain, residual gain, and residual feed intake of beef cattle as heifers and cows, 2020, Journal of Animal Science
  • Genes associated with body weight gain and feed intake identified by meta-analysis of the mesenteric fat from crossbred beef steers, 2020, PLoS ONE
  • One-carbon metabolite supplementation to heifers for the first 14 d of the estrous cycle alters the plasma and hepatic one-carbon metabolite pool and methionine-folate cycle enzyme transcript abundance in a dose-dependent manner, 2022, Journal of Animal Science
  • The effects of the forage-to-concentrate ratio on the conversion of digestible energy to metabolizable energy in growing beef steers, 2020, Journal of Animal Science

The majority of publications are concentrated in the Journal of Animal Science, with additional work appearing in Translational Animal Science, PLoS ONE, Scientific Reports, and the Journal of Applied Microbiology.

Frequent collaborators in their research include:

  • Amanda K. Lindholm-Perry
  • William T. Oliver
  • Robert A. Cushman
  • L. A. Kuehn
  • Bryan W Neville

Harvey C. Freetly received the American Feed Industry Association Award in Ruminant Nutrition Research from the American Society of Animal Science in 2009.

Best Publications

  • Rumen microbiome from steers differing in feed efficiency.

    Phillip R. Myer;Timothy P. L. Smith;James E. Wells;Larry A. Kuehn

  • Genome-wide association study for feed efficiency and growth traits in U.S. beef cattle

    Christopher M. Seabury;David L. Oldeschulte;Mahdi Saatchi;Jonathan E. Beever

  • Evaluation of antral follicle count and ovarian morphology in crossbred beef cows: investigation of influence of stage of the estrous cycle, age, and birth weight.

    R. A. Cushman;M. F. Allan;Larry A. Kuehn;W. M. Snelling

  • Association, effects and validation of polymorphisms within the NCAPG - LCORL locus located on BTA6 with feed intake, gain, meat and carcass traits in beef cattle.

    Amanda K Lindholm-Perry;Andrea K Sexten;Andrea K Sexten;Larry A Kuehn;Timothy P L Smith

  • Conservation of nitrogen in cattle feedlot waste with urease inhibitors

    Vincent H. Varel;John A. Nienaber;Harvey C. Freetly

  • Thermoregulatory responses of feeder cattle

    T.M Brown-Brandl;J.A Nienaber;R.A Eigenberg;G.L Hahn

  • Investigation of bacterial diversity in the feces of cattle fed different diets.

    M. Kim;J. Kim;L. A. Kuehn;J. L. Bono

  • Rumen Fluid Metabolomics Analysis Associated with Feed Efficiency on Crossbred Steers

    Virginia M. Artegoitia;Andrew P. Foote;Ronald M. Lewis;Harvey C. Freetly

  • Rumen bacterial community structure impacts feed efficiency in beef cattle

    Henry A Paz;Kristin E Hales;James E Wells;Larry A Kuehn

  • Differential expression of genes related to gain and intake in the liver of beef cattle

    C. M. Zarek;A. K. Lindholm-Perry;L. A. Kuehn;H. C. Freetly

  • Timing of realimentation of mature cows that were feed-restricted during pregnancy influences calf birth weights and growth rates.

    H. C. Freetly;C. L. Ferrell;T. G. Jenkins

  • The influence of oscillating dietary protein concentrations on finishing cattle. II. Nutrient retention and ammonia emissions

    S. L. Archibeque;H. C. Freetly;N. A. Cole;Calvin Ferrell

  • Effects of somatotropin and substrates on patterns of liver metabolism in lactating dairy cattle.

    J.R. Knapp;H.C. Freetly;B.L. Reis;C.C. Calvert

  • Evaluation of 16S rRNA amplicon sequencing using two next-generation sequencing technologies for phylogenetic analysis of the rumen bacterial community in steers

    Phillip R. Myer;MinSeok Kim;Harvey C. Freetly;Timothy P.L. Smith

  • QTLs associated with dry matter intake, metabolic mid-test weight, growth and feed efficiency have little overlap across 4 beef cattle studies.

    Mahdi Saatchi;Jonathan E. Beever;Jared E. Decker;Dan B. Faulkner

  • Effects of frequency of supplementation on dry matter intake and net portal and hepatic flux of nutrients in mature ewes that consume low-quality forage

    Clint R. Krehbiel;Calvin L. Ferrell;Harvey C. Freetly

  • The effect of supplemental energy, nitrogen, and protein on feed intake, digestibility, and nitrogen flux across the gut and liver in sheep fed low-quality forage.

    C L Ferrell;K K Kreikemeier;H C Freetly

  • Prevalence and level of Escherichia coli O157:H7 in feces and on hides of feedlot steers fed diets with or without wet distillers grains with solubles.

    J. E. Wells;S. D. Shackelford;E. D. Berry;N. Kalchayanand

  • Partitioning of energy during lactation of primiparous beef cows.

    H. C. Freetly;J. A. Nienaber;T. Brown-Brandl

  • Growth curves of crossbred cows sired by Hereford, Angus, Belgian Blue, Brahman, Boran, and Tuli bulls, and the fraction of mature body weight and height at puberty.

    Harvey C. Freetly;L. A. Kuehn;L. V. Cundiff

  • Partial-genome evaluation of postweaning feed intake and efficiency of crossbred beef cattle.

    W. M. Snelling;M. F. Allan;J. W. Keele;L. A. Kuehn

  • Genetic and phenotypic parameter estimates for feed intake and other traits in growing beef cattle, and opportunities for selection

    K. M. Rolfe;W. M. Snelling;M. K. Nielsen;H. C. Freetly

  • Visceral oxygen consumption during chronic feed restriction and realimentation in sheep.

    H. C. Freetly;C. L. Ferrell;T. G. Jenkins;A. L. Goetsch

Frequent Co-Authors

Larry A. Kuehn
Larry A. Kuehn Agricultural Research Service
Calvin L. Ferrell
Calvin L. Ferrell Agricultural Research Service
James E. Wells
James E. Wells Agricultural Research Service
Steven D. Shackelford
Steven D. Shackelford Agricultural Research Service
Tami M. Brown-Brandl
Tami M. Brown-Brandl University of Nebraska–Lincoln
Timothy P. L. Smith
Timothy P. L. Smith Agricultural Research Service
Gary L. Bennett
Gary L. Bennett Agricultural Research Service
S. L. Archibeque
S. L. Archibeque Colorado State University
John W. Keele
John W. Keele Agricultural Research Service
David A. King
David A. King Agricultural Research Service

If you think any of the details on this page are incorrect, let us know.

Report an issue

We appreciate your kind effort to assist us to improve this page, it would be helpful providing us with as much detail as possible in the text box below:

Related Online Degrees & Career Pathways

Exploring Animal Science and Veterinary studies opens the door to diverse career paths that often intersect with fields in health, education, and counseling. For those interested in supporting both animals and people, pursuing an online PhD in counseling can provide advanced skills in mental health, beneficial for animal-assisted therapy programs and community outreach.

Students focused on a career with animals should consider programs highlighted in this comprehensive guide to the animal degree. These degrees offer practical training designed for roles in wildlife conservation, veterinary services, and animal behavior.

Additionally, leadership opportunities in sports and wellness are viable options for graduates with a background in animal and exercise sciences. Understanding the athletic director education requirements can help those interested in managing sports programs, combining their passion for physical health and organizational skills.

Finally, students seeking flexible learning can benefit from the exercise science online degree options, which provide fast-track routes to careers in fitness, rehabilitation, and animal wellness.

Best Scientists Citing Harvey C. Freetly

Trending Scientists

Recently Published Articles