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Dickson Varner

Professor of Equine Theriogenology & Pin Oak Stud Chair of Stallion Reproductive Studies

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Phone: (979) 845-3541

Mailstop: 4475

Department: VLCS

Photo of Varner, Dickson

Education

  • M.S. Veterinary Anatomy, Texas A&M University 1990
  • D.V.M. Veterinary Medicine, University of Missouri 1978
  • B.S. Agriculture, University of Missouri 1976

Credentials

  • Kentucky Veterinary Medical License: NS 1098
  • Diplomate, American College of Theriogenologists
  • Texas Veterinary Medical License: 11672

Scholarly Interests

Equine theriogenology. Fertility probes for stallions; in-vitro preservation of equine spermatozoa; capacitation of equine spermatozoa; assisted reproductive techniques; and subfertility in stallions.

Publications

Validation of a fixable stain for assessing viability of stallion sperm
Ligon EM, Love CC, Varner DD. Validation of a fixable stain for assessing viability of stallion sperm
Clinical Theriogenology. 2017 9:448.
Effect of calcium, bicarbonate, bovine serum albumin and medium pH on spontaneous acrosome reaction in equine sperm
Macias-Garcia B, González-Ferández L, Love C, Varner D, Hinrichs K
Reprod Dom Anim. 2017 52:106.
The effect of seminal plasma and potentiators of DNA damage on stallion epididymal sperm
Serafini R, Varner DD, Love TL, Teague S, Love CC
Proc Annual Meeting Am Soc Androl. 2017 60:128.
The effect of flash-freezing temperature on stallion sperm DNA structure
Serafini R, Varner DD, Bissett W Jr, Blanchard TL, Teague SR, Love CC
Theriogenology. 2017 95:113-117.
The effect of dual-hemisphere breeding on stallion fertility
Walbornn SR, Love CC, Blanchard TL, Brinsko SP, Varner DD
Theriogenology. 2017 94:8-14.
The relationship between mitochondrial DNA copy number and stallion sperm function
Darr CR, Moraes LE, Connon RE, Love CC, Teague S, Varner DD, Meyers SA
Theriogenology. 2017 94:94-99.
Effect of two levels of hemospermia on stallion fertility
Turner CE, Walbornn SR, Blanchard TL, Varner DD, Brinsko SP, LaCaze KA, Teague SR, Love CC
Proc Am Assoc Equine Practioners. 2016 62:193-194.
Signalment, clinical features, and outcome for male horses with urethral rents following perineal urethrotomy or corpus spongiotomy: 33 cases (1989-2013)
Glass KG, Arnold CE, Varner DD, Chaffin MK, Schumacher J.
J Am Vet Med Assoc. 2016 249:1421-1427.
The effect of two levels of hemospermia on stallion fertility
Turner CE, Walbornn SR, Blanchard TL, Varner DD, Brinsko SP, LaCaze KA, Teague SR, Love CC
Theriogenology. 2016 86:1399-1402.
Strategies for processing semen from subfertile stallions for cooled transport
Varner DD
Vet Clin North Am Equine Pract. 2016 32:1382-1392.
The effects of urine concentration, and cushion centrifugation to remove urine, on the quality of cool-stored stallion sperm
Voge J, Varner DD, Blanchard TL, Meschini M, Turner C, Teague SR, Brinsko SP, Love CC
Theriogenology. 2016 86:1294-1298.
Mitochondrial oxygen consumption is a unique indicator of stallion spermatozoal health and varies with cryopreservation media
Darr CR, Cortopassi GA, Datta S, Varner DD, Meyers SA
Theriogenology. 2016 86:1383-1393.
Approaches to breeding soundness examination and interpretation of results
Varner DD
Journal of Equine Veternary Science. 2016 43:S37-44.
The circuitous path of an academic theriogenologist
Varner DD
Clinical Theriogenology. 2016 8:151-164.
Lactate and pyruvate are major sources of energy for stallion sperm with dose effects on mitochondrial function, motility, and ROS production
Darr CR, Varner DD, Teague S, Cortopassi GA, Datta S, Meyers SA
Biology of Reproduction. 2016 95:1-11.
Overview of selected pathologic conditions in breeding stallions: hemosperimia, poor semen quality, enlarged scrotum
Varner DD, Schlaefer DH
Proceedings, American Association of Equine Practitioners. 2015 61:257-267.
The relationship between sperm quality in cool-shipped semen and embryo recovery rate in horses
Love CC, Noble JK, Standridge SA, Bearden CT, Blanchard TL, Varner DD, Cavinder CA
Theriogenology. 2015 84:1587-1593.
Sperm DNA assays and their relationship to sperm motility and morphology in bulls
Serafini R, Romano JE, Varner DD, Di Palo R, Love CC
Anim Reprod Sci. 2015 159:77-86.
Sperm DNA quality evaluated by comet assay and sperm chromatin structure assay in stallions after unilateral orchiectomy
Serafini R, Varner DD, Bissett W Dr, Blanchard TL, Teague SR, Love CC
Theriogenology. 2015 84:833-837.


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