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Clemson University
college of agriculture, forestry and life sciences clemson university

John Andrae

Assistant Director Experiment Station
CAFLS Administration Office, Plant and Environmental Sciences Department, Experiment Station, PeeDee Research and Education Center

Office: 104 Barre Hall
Phone: 864-933-5987



Educational Background

Ph.D. Animal Physiology
University of Idaho 2000

M.S. Animal Science
Oklahoma State University 1995

B.S. Animal Science
Texas A&M University 1993


Dr. Andrae is currently the Associate Director of the South Carolina Experiment Station. He holds tenure and the rank of Professor in the Department of Plant and Environmental Sciences and has a 100% administration appointment. In addition to his Associate Director duties, he currently serves as the South Carolina SARE State Coordinator and on the board of directors of the Alliance for Grassland Renewal.He is also currently serving as the interim director of the Pee Dee Research and Education Center near Florence.


Oskey, M.; Velasquez, C.; Pena, O.M.; Andrae, J.; Bridges, W.; Ferreira, G.; Aguerre, M.J. Yield, Nutritional Composition, and Digestibility of Conventional and Brown Midrib (BMR) Pearl Millet as Affected by Planting and Harvesting Dates and Interseeded Cowpea. Animals (Basel). 2023 Jan 12;13(2):260. Doi: 10.3390/ani130202060
Wilbanks, S.A.; Justice, S.M.; West, T.; Klotz, J.L.; Andrae, J.G.; Duckett, S.K. Effects of Tall Fescue Endophyte Type and Dopamine Receptor D2 Genotype on Cow-Calf Performance during Late Gestation and Early Lactation. Toxins 2021, 13, 195. toxins13030195
Greene, M.A; Britt, J.L.; Bertrand, J.K; Klotz, J.L.; Bridges Jr, W.; Andrae, J.G.; Duckett, S.K. Feeding Tall Fescue Seed during Mid and Late Gestation Influences Subsequent Postnatal Growth, Puberty and Carcass Quality of Offspring. Animals (Basel) 2020. Oct 12; 10(10):1859. Doi: 10.3390/ani10101859
Poore, M., G. Scaglia, J. Andrae, D. Harmon, J. Rogers, and S. Blacklin. 2020. Chapter 10- Pasture-finished beef production in the south. In: Management Strategies for Sustainable Cattle Production in Southern Pastures. 1st Edition. Pgs 265-299. Editors: Monte Rouquette, Jr. and Glen Aiken. Academic Press. Paperback ISBN:9780128144749.
*Alende, M., G.J. Lascano, T.C. Jenkins, and J. G. Andrae. 2019. Contrasting levels of fructose and urea added to an annual ryegrass based diet: Effects on microbial protein synthesis, nutrient digestibility and fermentation parameters in continuous culture fermenters. SEMIARIDA 29:33-41.
Britt, J. L., M. A. Greene, W. C. Bridges, G. J. Klotz, Aiken, J. G. Andrae, S. L. Pratt, N. M. Long, F. N. Schrick, J. R. Strickland, and S. K. Wilbanks, M. F. Miller Jr., B. M. Koch, S. K. Duckett. 2019. Ergot alkaloid exposure during gestation alters. I. Maternal characteristics and placental development of pregnant ewes. J. Anim. Sci. 97: 1874-1890.
Klotz, J.L. J.L. Britt, M.M. Miller, Jr., M. A. Snider, G.E. Aiken, N.M. Long, S.L. Pratt, J.G. Andrae, and S. K. Duckett. 2019. Ergot alkaloid exposure during gestation alters: II. Uterine and umbilical artery vasoactivity. J. Anim. Sci.97: 1891-1902. .
Roberts, Craig and John Andrae. 2018. Fescue Toxicosis and Management. 2nd. Edition. American Society of Agronomy Inc. and Crop Science Society of America Inc. ISBN: 978-0-89118-630-4. Doi: 10.2135/2018.fescuetoxicosis
Koch, B. M., E. Pavan, J. G. Andrae and S. K. Duckett. 2018. Timing of exposure to high-concentrates versus high-quality forages on growth and marbling deposition in steers. Meat & Muscle Biology 2:321-323.
*Alende, M., G. Lascano, T.C. Jenkins, L.E. Koch, G. Volpi-Lagreca, and J. Andrae. 2018. Technical Note: Comparison of four methods for determining in vitro ruminal digestibility of annual ryegrass. Prof. Anim. Sci. 34:306-309.
Alende, M., P.A. Lancaster, M.L. Spangler, A.J. Pordomingo, and J.G. Andrae, 2016. Residual Feed Intake in Cattle: Physiological basis. A review. Revista Argentina de Produccion Animal Vol 36N 2:49-56.
Duckett, S. K., J. G. Andrae, J. H. Bouton, C. S. Hoveland, and M. A. McCann. 2016. Subsequent Feedlot Performance and Carcass Quality of Steers that grazed Tall Fescue with Different Endophyte Types. Forage & Grazinglands DOI:10.2134/cftm2015.0133.
Pratt, Scott L., and John G. Andrae. 2015. Do ergot alkaloids negatively impact bull growth and breeding potential? J. Anim. Sci. 93: (12) 5522-5528
Bauer, P.J., K.C. Stone, J. G. Andrae, W.J. Busscher, J.A. Millen, E.E. Strickland, and D.E. Evans. 2015. Water deficit and nitrogen fertilization effects on NDVI of 'Tifton 85' bermudagrass during regrowth. Am. Soc. of Agric. and Biol. Engineers. 31(1):97-102. doi 10.13031/aea.31.10731
Wright, A., J. Andrae, C. Fernandez Rosso, E. Pavan, and S. K. Duckett. 2015. Effect of grazing legume or grass forages with or without corn supplementation on animal performance and meat quality of forage-finished beef. J. Anim. Sci. 93:5047-58.
Pratt, S. L., H. M. Stowe, BK Whitlock, L. Strickland, *M. Miller, S. M. Calcatera, M. D. Dimmick, G. Aiken, F. N. Schrick, N. M. Long, S. K. Duckett and J. G. Andrae. 2015. Bulls grazing Kentucky 31 tall fescue exhibit impaired growth, semen quality, and decreased semen freezing potential. Therio. 83:408-14. doi: 10.1016/j.theriogenology.2014.10.001. Epub 2014 Oct 7.
Pratt, S. L., S. M. Calcatera, H. M. Stowe, M. A. Dimmick, F. N. Schrick, S. K. Duckett, and J. G. Andrae. 2015. Identification of bovine prolactin in seminal fluid, and expression and localization of the prolactin receptor and prolactin-inducible protein in the testis and epididymis of bulls exposed to ergot alkaloids. Therio. 83:662-9 doi: 10.1016/j.theriogenology.2014.10.031. Epub 2014 Nov 20.
Stowe, H.M., Calcatera, S.M., Dimmick, M.A., Andrae, J.G., Duckett, S.K., and Pratt, S.L. 2014. The bull sperm microRNAome and the effect of fescue toxicosis on sperm microRNA expression. PLoS One. 2014; 9(12): e113163.

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