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Animal Science and Veterinary
USA
2026

D-Index & Metrics

Animal Science and Veterinary

D-Index
93
Citations
28368
World Ranking
28
National Ranking
10

Research.com Recognitions

  • 2026 - Research.com Animal Science and Veterinary in United States Leader Award
  • 2025 - Research.com Animal Science and Veterinary in United States Leader Award
  • 2023 - Research.com Animal Science and Veterinary in United States Leader Award
  • 2010 - Zinpro Award for Excellence in Dairy Science, American Dairy Science Association
  • 2009 - American Dairy Science Association Fellowship Award
  • 1991 - Cargill Animal Nutrition Young Scientist Award, American Dairy Science Association

Overview

Peter J. Hansen is affiliated with the University of Florida in the United States. Their research focuses broadly on areas related to biochemistry, genetics, and molecular biology, with significant contributions to medicine and agricultural and biological sciences. Within these fields, Hansen's work engages deeply with genetics, agronomy and crop science, public health, environmental and occupational health, molecular biology, and animal science and zoology.

Their main research topics include reproductive biology and fertility, reproductive physiology in livestock, genetic and phenotypic traits in livestock, effects of environmental stressors on livestock, animal genetics and reproduction, reproductive system and pregnancy, and pluripotent stem cells research.

Hansen has published extensively, with notable recent papers including:

  • The incompletely fulfilled promise of embryo transfer in cattle-why aren't pregnancy rates greater and what can we do about it? (2020, Journal of Animal Science)
  • Prospects for gene introgression or gene editing as a strategy for reduction of the impact of heat stress on production and reproduction in cattle (2020, Theriogenology)
  • Implications of Assisted Reproductive Technologies for Pregnancy Outcomes in Mammals (2020, Annual Review of Animal Biosciences)
  • Review: Some challenges and unrealized opportunities toward widespread use of the in vitro-produced embryo in cattle production (2023, animal)

Frequent publication venues for Hansen include:

  • Journal of Animal Science
  • Biology of Reproduction
  • Journal of Dairy Science
  • Theriogenology
  • Reproduction Fertility and Development

Collaborations are a significant aspect of Hansen's work. They have frequently co-authored with researchers such as Eliab Estrada-Cortés, Thiago F Amaral, María Belén Rabaglino, Yao Xiao, and Froylan Sosa.

Throughout their career, Hansen has received several awards including the Zinpro Award for Excellence in Dairy Science (American Dairy Science Association, 2010), the American Dairy Science Association Fellowship Award (2009), and the Cargill Animal Nutrition Young Scientist Award (American Dairy Science Association, 1991).

Best Publications

  • Effects of heat stress on mammalian reproduction.

    Peter J. Hansen

  • Physiological and cellular adaptations of zebu cattle to thermal stress

    P.J Hansen

  • Is the temperature-humidity index the best indicator of heat stress in lactating dairy cows in a subtropical environment?

    S. Dikmen;P.J. Hansen

  • Developmental changes in embryonic resistance to adverse effects of maternal heat stress in cows

    Alan D. Ealy;Maarten Drost;Peter J. Hansen

  • Strategies for managing reproduction in the heat-stressed dairy cow.

    P J Hansen;C F Aréchiga

  • Effect of Season and Exposure to Heat Stress on Oocyte Competence in Holstein Cows

    Y.M. Al-Katanani;F.F. Paula-Lopes;P.J. Hansen

  • Differential responses of bovine oocytes and preimplantation embryos to heat shock

    J. Lannett Edwards;Peter J. Hansen

  • Concepts for regulation of corpus luteum function by the conceptus and ovarian follicles to improve fertility

    W.W. Thatcher;K.L. Macmillan;P.J. Hansen;M. Drost

  • Progesterone During Pregnancy: Endocrine–Immune Cross Talk in Mammalian Species and the Role of Stress

    Petra Arck;Peter J. Hansen;Biserka Mulac Jericevic;Marie Pierre Piccinni

  • Fertilizing capacity of bovine sperm may be maintained by binding of oviductal epithelial cells.

    J W Pollard;C Plante;W A King;P J Hansen

  • Factors affecting seasonal variation in 90-day nonreturn rate to first service in lactating Holstein cows in a hot climate.

    Yaser M. Al-Katanani;D.W. Webb;P.J. Hansen

  • Development of cultured bovine embryos after exposure to high temperatures in the physiological range

    RM Rivera;PJ Hansen

  • Exploitation of genetic and physiological determinants of embryonic resistance to elevated temperature to improve embryonic survival in dairy cattle during heat stress

    P.J. Hansen

  • Adverse impact of heat stress on embryo production: causes and strategies for mitigation

    P.J. Hansen;M. Drost;R.M. Rivera;F.F. Paula-Lopes

  • Mastitis and fertility in cattle - possible involvement of inflammation or immune activation in embryonic mortality.

    Peter J. Hansen;Paolete Soto;Roger P. Natzke

  • Disruption of nuclear maturation and rearrangement of cytoskeletal elements in bovine oocytes exposed to heat shock during maturation

    Z Roth;P J Hansen

  • Involvement of Apoptosis in Disruption of Developmental Competence of Bovine Oocytes by Heat Shock During Maturation

    Z. Roth;P. J. Hansen

  • Heat Shock-Induced Apoptosis in Preimplantation Bovine Embryos Is a Developmentally Regulated Phenomenon

    F. F. Paula-Lopes;P. J. Hansen

  • Effects of Timed Insemination and Supplemental β-Carotene on Reproduction and Milk Yield of Dairy Cows Under Heat Stress

    C.F. Aréchiga;C.R. Staples;L.R. McDowell;P.J. Hansen

  • Elevated temperature increases heat shock protein 70 synthesis in bovine two-cell embryos and compromises function of maturing oocytes.

    J L Edwards;P J Hansen

  • Discovery of single nucleotide polymorphisms in candidate genes associated with fertility and production traits in Holstein cattle

    Sarah D Cochran;John B Cole;Daniel J Null;Peter J Hansen

  • Extension of Corpus Luteum Lifespan and Reduction of Uterine Secretion of Prostaglandin F2α of Cows in Response to Recombinant Interferon-τ

    M.D. Meyer;P.J. Hansen;W.W. Thatcher;M. Drost

  • Identification of Possible Mediators of Embryonic Mortality Caused by Mastitis: Actions of Lipopolysaccharide, Prostaglandin F2α, and the Nitric Oxide Generator, Sodium Nitroprusside Dihydrate, on Oocyte Maturation and Embryonic Development in Cattle

    P. Soto;R. P. Natzke;P. J. Hansen

  • Identification of bovine trophoblast protein-1, a secretory protein immunologically related to ovine trophoblast protein-1

    S. D. Helmer;P. J. Hansen;R. V. Anthony;W. W. Thatcher

  • Characteristics of the Estrous Cycle and Antioxidant Status of Lactating Holstein Cows Exposed to Heat Stress

    Jennifer P. Trout;Lee R. McDowell;Peter J. Hansen

Frequent Co-Authors

Alan D. Ealy
Alan D. Ealy Virginia Tech
William W. Thatcher
William W. Thatcher University of Florida
John B. Cole
John B. Cole United States Department of Agriculture
Fuller W. Bazer
Fuller W. Bazer Texas A&M University
Thomas E. Spencer
Thomas E. Spencer University of Missouri
C.R. Staples
C.R. Staples University of Florida
Wenjun Liu
Wenjun Liu Chinese Academy of Sciences
A. De Vries
A. De Vries University of Florida
Raluca G. Mateescu
Raluca G. Mateescu University of Florida
Ronaldo L.A. Cerri
Ronaldo L.A. Cerri University of British Columbia

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