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Don Colborn

Don Colborn, Ph.D.

Professor of Biology
Email: dcolborn@hlg.edu
Phone: 573-629-3152

Brief Bio

"I enjoy interacting with students one-on-one and encouraging them to gain the knowledge necessary to be successful in their career endeavors," said Dr. Don Colborn, HLG alum and professor of biology. Prior to joining the HLG faculty in 2003, Colborn taught at Missouri Baptist University.

Outside of the classroom, Colborn is a self-proclaimed tinkerer. "If it ain't broke...why not?" he said. "Then I can fix it." He also enjoys hunting, fishing, boating and golf.

Colborn's wife is also an HLG alum, and they have six children.

Educational Background

  • Post-doctoral Fellowship, West Viginia University, 1994
  • Ph.D., Louisiana State University, 1990
  • M.S., University of Missouri, 1987
  • B.S., University of Missouri, 1985
  • A.S., Hannibal-LaGrange College, 1983

Awards or Achievements

  • Excellence in Teaching Award, Missouri Baptist University, 2003
  • Emerson Teaching Award, 2002


  • Human Anatomy & Psysiology Society

Courses Taught

  • General Biology
  • Anatomy & Physiology
  • Cell Biology
  • Ecology
  • Field Biology
  • Environmental Science

Selected Journal Publications

  • Thompson, D.L., Jr., M.S. Rahmanian, K.L. White, D.R. Colborn and L.L. Southern. 1993. Feeding tryptophan to seasonally anestrous mares: Ovarian characteristics and secretion of luteinizing hormone, follicle stimulating hormone, and prolactin. Eq. Vet. Sci. 13:390-395.
  • Thompson, D.L., Jr., M.S. Rahmanian, C.L. DePew, D.W. Burleigh, C.J. DeSouza and D.R. Colborn. 1992. Growth hormone (GH) in mares and stallions: Pulsatile secretion, response to GH-releasing hormone, and effects of exercise, sexual stimulation, and pharmacological agents. J. Anim. Sci. 70:1201.
  • Colborn, D.R., D.L. Thompson, Jr., M.S. Rahmanian and T.L. Roth. 1991. Plasma concentrations of cortisol, prolactin, luteinizing hormone, and follicle-stimulating hormone in stallions after physical exercise and injection of secretagogue before and after sulpiride treatment in winter. J. Anim. Sci. 69:3724.
  • Colborn, D.R., D.L. Thompson, Jr., T.L. Roth, J.S. Capehart and K.L. White. 1991. Responses of cortisol and prolactin to sexual excitement and stress in stallions and geldings. J. Anim. Sci. 69:2556.
  • Roth, T.L., K.L. White, D.L. Thompson, Jr., B.E. Barry, J.S. Capehart, D.R. Colborn and M.H. Rabb. 1990. Suppression of intra- and interspecific lymphocyte proliferation by a >30,000 MW factor in horse conceptus-conditioned medium. Biol. Repro. 43:298.

Contact Information

Academics Office