Scott T. Willard

Scott T. Willard

Dean, CALS
Director, MAFES

Reproductive Physiology

Email: stw4@msstate.edu
Phone:  (662) 325-0233


Education:
  • Ph.D., Texas A&M University

Research Areas:
  • Reproductive physiology
  • Environmental physiology
  • Homeostatic regulation and physiological stress
  • Biophotonics and thermal imaging

Courses Taught:
  • BCH 1001 Intro to Biochemistry

Publications

  • Kouba, A., C. J. Langhorne, S. Willard, T. Smith, C. Vance. 2021. Spermiation response to exogenous hormone therapy in hibernated and non-hibernated boreal toads (Anaxyrus boreas boreas). Reproduction Fertility and Development. Reproduction, Fertility and Development 34(5):453-460. Download
  • Langhorne, C. J., N. Calatayud, C. K. Vance, S. T. Willard, T. Smith, P. L. Ryan, A. J. Kouba. 2021. Efficacy of hormone stimulation on sperm production in an alpine amphibian (Anaxyrus boreas boreas) and the impact of short-term storage on sperm quality. Zoology 146:125912. Download
  • Paes, V. M., J. R. de Figueiredo, P. L. Ryan, S. T. Willard, J.-M. Nguekam Feugang. 2020. Comparative analysis of porcine follicular fluid proteomes of small and large ovarian follicles. Biology 9(5):101.  Download
  • Dutra, G. A., G. M. Ishak, O. Pechanova, T. Pechan, D. G. Peterson, J. C. F. Jacob, S. T. Willard, P. L. Ryan, E. L. Gastal, J.-M. Nguekam Feugang. 2019. Seasonal variation in equine follicular fluid proteome. Reproductive Biology and Endocrinology 17:29. Download
  • Gastal, G. D. A., F. L. N. Aguiar, G. M. Ishak, C. A. Cavinder, S. T. Willard, P. L. Ryan, J.-M. Nguekam Feugang, E. L. Gastal. 2019. Effect of cryopreservation techniques on proliferation and apoptosis of cultured equine ovarian tissue. Theriogenology 126:88-94. Download
  • Julien, A. R., A. J. Kouba, D. Kabelic, J.-M. Nguekam Feugang, S. T. Willard, C. K. Vance. 2019. Nasal administration of gonadotropin releasing hormone (GnRH) elicits sperm production in Fowler's toads (Anaxyrus fowleri). BMC Zoology 4(3).  Download
  • Park, S. B., S. White, C. S. Steadman, T. Pechan, O. Pechanova, H. J. Clemente, R. V. K. G. Thirumalai, S. T. Willard, P. L. Ryan, J.-M. Nguekam Feugang. 2019. Silver-coated magnetic nanocomposites induce growth inhibition and protein changes in foodborne bacteria. Scientific Reports 9:17499.  Download
  • Wilson, A. E., D. L. Sparks, K. Knott, S. T. Willard, A. E. Brown Johnson, T. Connor, Z. Zhang. 2019. Field air analysis of volatile compounds from free-ranging giant pandas. Ursus 29(2):75-81.  Download
  • Zhang, L., S. T. Willard, H. Zhao, Q. Wang, W. Jiang, H.-X. Zhang, A. J. Kouba. 2019. Spatial distribution and seasonal movement patterns of reintroduced Chinese giant salamanders. BMC Zoology 4:7.  Download
  • Jain, S., S. B. Park, S. R. Pillai, P. L. Ryan, S. T. Willard, J.-M. Nguekam Feugang. 2018. Applications of fluorescent quantum dots for reproductive medicine and disease detection. In A. C. Gomes and M. P. Sarria (Eds.), Unraveling the Safety Profile of Nanoscale Particles and Materials - From Biomedical to Environmental Applications, IntechOpen. Download
  • Littlejohn, B. P., D. G. Riley, T. H. Welsh Jr., R. D. Randel, S. T. Willard, R. C. Vann. 2018. Use of random regression to estimate parameters of temperament across an age continuum in a crossbred cattle population. Journal of Animal Science 96(7):2607-2621.  Download
  • Williams, C. L., K. Dill-McFarland, D. L. Sparks, A. J. Kouba, S. T. Willard, G. Suen, A. E. Brown. 2018. Dietary changes during weaning shape the gut microbiota of red pandas (Ailurus fulgens). Conservation Physiology 6(1).  Download
  • Wilson, A. E., D. L. Sparks, K. Knott, S. T. Willard, A. E. Brown Johnson. 2018. Implementing solid phase microextraction (SPME) as a tool to detect volatile compounds produced by giant pandas in the environment. PLOS ONE 13(12).  Download
  • Wilson, A. E., D. L. Sparks, K. Knott, S. T. Willard, A. J. Kouba, A. E. Brown Johnson. 2018. Behavioral, semiochemical and androgen responses by male giant pandas to the olfactory sexual receptivity cues of females. Theriogenology 114:330-337.  Download
  • Durfey, C. L., D. D. Devost-Burnett, S. Liao, C. S. Steadman, M. A. Crenshaw, H. J. Clemente, S. T. Willard, P. L. Ryan, J.-M. Nguekam Feugang. 2017. Nanotechnology-based selection of boar spermatozoa: growth development and health assessments of produced offspring. Livestock Science 205:137-142. Download
  • Graham, K., M., A. J. Kouba, C. J. Langhorne, R. M. Marcec, S. T. Willard. 2016. Biological sex identification in the endangered dusky gopher frog (Lithobates sevosa): A comparison of body size measurements, secondary sex characteristics, ultrasound imaging, and urinary hormone analysis methods. Reproductive Biology and Endocrinology 14(1):41. Download
  • Ruth, M., A. J. Kouba, L. Zhang, H.-X. Zhang, Q. Wang, H. Zhao, W. Jiang, S. T. Willard. 2016. Surgical implantation of coelomic radiotransmitters and postoperative survival and tracking of Chinese Giant Salamanders (Andrias davidianus) following reintroduction. Journal of Zoo and Wildlife Medicine 47(1):187-195. Download
  • Vasquez, E. S., P. L. Ryan, S. T. Willard, J. M. Feugang, K. B. Walters. 2016. Bioluminescent magnetic nanoparticles as potential imaging agents for mammalian spermatozoa. Journal of Nanobiotechnology 14:20. Download
  • Williams, C. L., K. A. Dill-McFarland, M. W. Vandewege, D. L. Sparks, S. T. Willard, A. J. Kouba, G. Suen, A. E. Brown. 2016. Dietary shifts may trigger dysbiosis and mucous stools in giant pandas (Ailuropoda melanoleuca). Frontiers in Microbiology 7:661. Download
  • Zhang, L., W. Jiang, Q. J. Wang, H. Zhao, H. X. Zhang, R. M. Marcec, S. T. Willard, A. J. Kouba. 2016. Reintroduction and Post-Release Survival of a Living Fossil: The Chinese Giant Salamander. PloS One 11(6):e0156715. Download
  • Calatayud, N. E., C. J. Langhorne, A. C. Mullen, C. L. Williams, T. Smith, A. J. Kouba, S. T. Willard. 2015. A hormone priming regimen and hibernation affect oviposition in the boreal toad (Anaxyrus boreas boreas). Theriogenology 84(4):600-607. Download
  • Christian, A. L., K. K. Knot, C. K. Vance, J. F. Falcone, L. L. Bauer, G. C. Fahey, S. T. Willard, A. J. Kouba. 2015. Nutrient and mineral composition during shoot growth in seven species of Phyllostachys and Pseudosasa bamboo consumed by giant panda. Journal of Animal Physiology and Animal Nutrition 99(6):1172-1183. Download
  • Nguekam Feugang, J.-M., J. C. Rodriguez-Munoz, D. S. Dillard, M. A. Crenshaw, S. T. Willard, P. L. Ryan. 2015. Beneficial effects of relaxin on motility characteristics of stored boar spermatozoa. BMC Biology - Reproductive Biology and Endocrinology 13(24). Download
  • Nguekam Feugang, J.-M., J. M. Greene, H. L. Sanchez-Rodriguez, J. V. Stokes, M. A. Crenshaw, S. T. Willard, P. L. Ryan. 2015. Profiling of relaxin and its receptor proteins in boar reproductive tissues and spermatozoa. Reproductive Biology and Endocrinology 13:46. Download
  • Nguekam Feugang, J.-M., R. C. Youngblood, J. M. Greene, S. T. Willard, P. L. Ryan. 2015. Self-illuminating quantum dots for non-invasive bioluminescence imaging of mammalian gametes. Journal of Nanobiotechnology 13:38. Download
  • Nguekam Feugang, J.-M., S. Liao, M. A. Crenshaw, H. Clemente, S. T. Willard, P. L. Ryan. 2015. Lectin-functionalized magnetic iron oxide nanoparticles for reproductive improvement. Journal of Fertilization: In Vitro 3(2):145.  Download
  • Feugang, J.M., R.C. Youngblood, S.T. Willard, P.L. Ryan. 2013. Potential use of conjugated quantum dot nanoparticles for bio-labeling of mammalian gametes. Journal of Reproduction and Development, 26:1:187. Download
  • Sanchez, H.L., R.C. Vann, R.C. Youngblood, E. Baravik-Munsell, D.L. Christiansen, S.T. Willard, and P.L. Ryan. 2013. Evaluation of pulsatility index and diameter of the jugular vein and superficial body temperature as physiological indices of temperament in weaned beef calves: Relationship with serum cortisol concentrations, rectal temperature, and sex. Livestock Science 151(2-3):228-237. Download
  • Feugang, J.M., R.C. Youngblood, J. Greene, A. Fahad, W. Monroe, S.T. Willard, P.L. Ryan. 2012. Application of quantum dot nanoparticles for potential non-invasive bio-imaging of mammalian spermatozoa. Journal of Nanobiotechnology 10:45. Download
  • Feugang, J.M., S.T. Willard, P.L. Ryan. 2012. Manipulation of mammalian gametes and embryos: What are we learning from animal settings. Journal of Fertilization: In Vitro 2:e114.
  • Williams, C., S.T. Willard, A. Kouba, D.L. Sparks, W.E. Holmes, J.F. Falcone, C.H. Williams, A.E. Brown. 2012. Dietary Shifts Affect the Gastronintestinal Microflora of the Giant Panda (Ailuropoda melanoleuca). Journal of Animal Physiology and Animal Nutrition. Download
  • Zhang, H.X., J.Z. Shen, H. Zhao, J. Wang, A. Kouba, S.T. Willard. 2012. Water temperature of ecological imitated breeding of parent andrias davidanus in Qinba Mountains. Journal of Hydroecology 33(1):97-102.
  • Burdick, N.C., L.E. Hulbert, S.T. Willard, R.C. Vann, J.A. Carroll, T.H. Welsh, Jr, R.D. Randel. 2011. The influence of temperment on increases in body temperature and secretion of cortisol and epinephrine in bulls in response to transportation. Livestock Science 139(3):213-221. Download
  • Feugang, J.M., J.C. Rodriguez-Munoz, S.T. Willard, R. Bathgate, P.L. Ryan. 2011. Examination of relaxin and its receptors expression in pig gametes and embryos. Reproductive Biology and Endocrinology 9:1:10. Download
  • Feugang, J.M., S.T. Willard, P.L. Ryan, J. Greene. 2011. In vitro effects of relaxin on gene expression in procine cumulus-oocyte complexes and developing embryos. Reproductive Biology and Endocrinology 9:1:15. Download
  • Ryan, P.L., D.L. Christiansen, R.M. Hopper, F.K. Walters, J. Curbelo, J. Greene, S.T. Willard. 2011. Horse Species Symposium:A novel approach to monitoring pathogen progression during uterine and placental infection in the mare using bioluminescence imaging technology and lux-modified bacteria. Journal of Animal Science. Download
  • Ryan, P.L., D.L. Christiansen, R.M. Hopper, F.K. Walters, K. Moulton, J. Curbelo, J. Greene, S.T. Willard. 2011. A novel approach to monitoring pathogen progression during uterine and placental infection in the mare using biophotonic imaging technology and lux-modified bacteria. Journal of Animal Science 89:5:1541. Download
  • Tucker, A., H.L. Sanchez, W.B. Tucker, A.R. Williams, J.W. Fuquay, S.T. Willard, P.L. Ryan. 2011. Effects of early postpartum GnRH and prostaglandin F2 alpha administration on reproductive activity and ovulation synchronization in lactating dairy cows. Journal of Animal and Veterinary Advances 10(7):900-908. Download
  • Burdick, N.C., J.A. Carroll, L.E. Hulbert, J.W. Dailey, M.A. Ballou, R.D. Randel, S.T. Willard, R.C. Vann, T.H. Welsh, Jr. 2010. Temperament influences endotoxin-induced changes in rectal temperature, sickness behavior and plasma epinephrine concentrations in bulls. Innate Immunity 17 (4):355-364. Download
  • Burdick, N.C., J.A. Carroll, L.E. Hulbert, J.W. Dailey, S.T. Willard, R.C. Vann, T.H. Welsh, Jr, R.D. Randel. 2010. Relationships between temperament and transportation with rectal temperature and serum concentrations of cortisol and epinephrine in bulls. Livestock Science 129(1-3):166-172. Download
  • Curbelo, J., K. Moulton, and S.T. Willard. 2010. Photonic characteristics and ex vivo imaging of Escherichia coli-Xen 14 within the bovine reproductive tract. Theriogenology 73:48-55. Download
  • Godfrey, R., L. Larson, A. Weis, S.T. Willard. 2010. Evaluation of ultrasonography to measure fetal size and heart rate as predictors of fetal age in hair sheep. Sheep & Goat Research Jounal 25:60-65. Download
  • Bowers, S.D., B.S. Gandy, W.B. Anderson, P.L. Ryan, S.T. Willard. 2009. Assessment of pregnancy in the late gestation mare using digital infrared thermography. Theriogenology 72(3):372-377. Download
  • Jung, S., S.D. Bowers, S.T. Willard. 2009. Simulated microgravity influences bovine oocyte in in vitro fertilization and preimplantation embryo development. Journal of Animal and Veterinary Advances 8(9):1807-1814. Download
  • Jung, S., S.T. Willard. 2009. The effect of culture methods and serum supplementation on developmental competence of bovine embryos cultured in vitro. Journal of Animal and Veterinary Advances 8(1):67-74. Download
  • Moulton, K., P.L. Ryan, D.C. Lay Jr., S.T. Willard. 2009. Postmortem photonic imaging of lux-modified Salmonella typhimuium within the gastrointestinal tract of swine following oral inoculation in vivo. Journal of Animal Science 87:2239-2244. Download
  • Moulton, K., P.L. Ryan, D.C. Lay, Jr., S.T. Willard. 2009. Photonic plasmid stability of transformed Salmonella typhimurium: a comparison of three unique plasmids. Microbiology 9:152-159. Download
  • Moulton, K., P.L. Ryan, D.L. Christiansen, R.M. Hopper, C. Klauser, W.A. Bennett, S. Rodst-Palenik, S.T. Willard. 2009. Ex vivo bioluminescence imaging of late gestation ewes following intrauterine inoculation with lux-modified escherichia coli. Comparative Immunology, Microbiology and Infectious Diseases 32:429-438. Download
  • Moulton, K., P.L. Ryan, D.L. Christiansen, R.M. Hopper, C. Klauser, W.A. Bennett, S. Rodst-Palenik, S.T. Willard. 2009. Hormonal Profiles of Late Gestation Ewes Following Intra-uterine Inoculation With and Without Lux-modified Escherichia coli. Journal of Reproduction and Development 55(1):55-62. Download
  • Willard, S.T., A. Ravikumar, J. Ausborn, S.D. Bowers, A. Musselwhite. 2009. Growth factors augment the effects of HPTE on estrogen response element-mediated gene transcription in human breast cancer cells. Research Journal of Medicine and Medical Sciences 42(2):171-180.
  • Dos Santos, A.R., J.D. Anderson, R.C. Vann, S.T. Willard. 2008. Live Animal Ultrasound Information as a Decision Tool in Replacement Beef Heifer Programs. Journal of Agricultural and Applied Economics 40(1):335-344. Download
  • Rose, C.M., W.B. Tucker, S.T. Willard, A.R. Williams, J.W. Fuquay, P.L. Ryan, C. Whisnant. 2008. Evaluation of hormone treatments in a modified ovulation synchronization protocol in dairy heifers. Journal of Animal and Veterinary Advances 7:2:154-159. Download

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