World's Best Scientists 2026 revealed!

D-Index & Metrics

Animal Science and Veterinary

D-Index
38
Citations
5678
World Ranking
1385
National Ranking
408

Best Publications

  • The ovarian insulin and insulin-like growth factor system with an emphasis on domestic animals

    L.J. Spicer;S.E. Echternkamp

  • Effects of insulin, insulin-like growth factor I, and gonadotropins on bovine granulosa cell proliferation, progesterone production, estradiol production, and(or) insulin-like growth factor I production in vitro.

    L. J. Spicer;E. Alpizar;S. E. Echternkamp

  • Concentrations of insulin-like growth factor-I in blood and ovarian follicular fluid of cattle selected for twins.

    S E Echternkamp;L J Spicer;K E Gregory;S F Canning

  • Puberty in Beef Bulls: Hormone Concentrations, Growth, Testicular Development, Sperm Production and Sexual Aggressiveness in Bulls of Different Breeds1

    Unknown

  • Levels of insulin-like growth factor (IGF) binding proteins, luteinizing hormone and IGF-I receptors, and steroids in dominant follicles during the first follicular wave in cattle exhibiting regular estrous cycles.

    R E Stewart;L J Spicer;T D Hamilton;B E Keefer

  • Ovarian follicular growth, function and turnover in cattle: a review.

    L. J. Spicer;L. J. Spicer;S. E. Echternkamp;S. E. Echternkamp

  • Concurrent changes in bovine plasma hormone levels prior to and during the first postpartum estrous cycle.

    S. E. Echternkamp;William Hansel

  • Relationships among Concentrations of Steroids, Insulin-like Growth Factor-I, and Insulin-like Growth Factor Binding Proteins in Ovarian Follicular Fluid of Beef Cattle1

    Unknown

  • Effects of twinning on dystocia, calf survival, calf growth, carcass traits, and cow productivity.

    K E Gregory;S E Echternkamp;L V Cundiff

  • Uterine blood flow of cows during the oestrous cycle and early pregnancy: effect of the conceptus on the uterine blood supply

    Unknown

  • Ovarian follicular development in cattle selected for twin ovulations and births.

    S. E. Echternkamp;A. J. Roberts;D. D. Lunstra;T. Wise

  • Twinning in cattle: I. Foundation animals and genetic and environmental effects on twinning rate.

    K E Gregory;S E Echternkamp;G E Dickerson;L V Cundiff

  • Puberty in Beef Bulls: Acrosome Morphology and Semen Quality in Bulls of Different Breeds1

    Unknown

  • Effects of twinning on gestation length, retained placenta, and dystocia.

    Unknown

  • Genetic and environmental parameters for ovulation rate, twinning rate, and weight traits in a cattle population selected for twinning.

    K. E. Gregory;G. L. Bennett;L. D. Van Vleck;S. E. Echternkamp

  • Twinning in cattle: III. Effects of twinning on dystocia, reproductive traits, calf survival, calf growth and cow productivity.

    K E Gregory;S E Echternkamp;G E Dickerson;L V Cundiff

  • Hormonal asynchrony and embryonic development

    Unknown

  • Control of Ovarian Function in Domestic Animals

    William Hansel;S. E. Echternkamp

  • Initial results of genomic scans for ovulation rate in a cattle population selected for increased twinning rate.

    S. M. Kappes;G. L. Bennett;J. W. Keele;S. E. Echternkamp

  • Twinning in cattle: II. Genetic and environmental effects on ovulation rate in puberal heifers and postpartum cows and the effects of ovulation rate on embryonic survival.

    S E Echternkamp;K E Gregory;G E Dickerson;L V Cundiff

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Related Online Degrees & Career Pathways

Pursuing a degree in Animal Science or Veterinary fields opens diverse career opportunities, which often require specialized education. For those interested in complementary fields, an online masters in marriage and family therapy can broaden understanding of human-animal interactions and support for pet owners facing emotional challenges.

Advanced degrees like a phd in counseling online also provide flexible pathways for professionals looking to integrate mental health services within animal-assisted therapy programs or research animal behavior in psychological contexts.

For those focused on direct work with animals, it’s important to explore the highest paying animal jobs to align education choices with career goals such as veterinary specialists, animal nutritionists, or wildlife biologists. Understanding these pathways helps optimize time and investment in education.

Additionally, professionals interested in organizational leadership within sports and educational institutions may consider roles like an athletic director. To learn more about this career, see how do i become an athletic director for insights into required skills and salary expectations.