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Office location:
7421 Somerset Rd.
Knoxville, TN
37909-2356
865-560-1247phone
865-974-7997 facsimile
fribourg@tennessee.edu

Mailing address:
Dr. Henry A. Fribourg
Emeritus Professor of Crop Ecology, University of Tennessee
7421 Somerset Road
Knoxville, TN 37909-2356, U.S.A.



Dr. Henry A. Fribourg
Department of Plant Sciences, University of Tennessee

Henry Fribourg

UT 1956-2001

Professor Emeritus of
Forage Crops Ecology


Ph.D., Iowa State University, 1954
M. S., Cornell University, 1951
B. S., University of Wisconsin, Madison, 1949

Fellow, American Society of Agronomy
Fellow, Crop Science Society of America
National Merit Award, and Distinguished
Grasslander, American Forage and
Grassland Council

Research:
Ecology of crops in forage management systems. Utilization of endophyte infested and endophyte free tall fescue in forage systems for beef cattle and equines, and evaluation of non-toxic endophytes in tall fescue. Determination of causative agents for tall fescue toxicosis. Quantification of methane exhalations by ruminants. Management of summer annual grasses, Midland bermudagrass, other forage crops, and pasture renovation with legumes. Probability occurrences of climatic parameters and influence of soil characteristics and properties on crop plant performance.

All these grazing and agronomic field experiments and laboratory studies in cooperation with colleagues in Animal Science, Veterinary Medicine, and Entomology and Plant Pathology.

Publications:
Over 430 scientific papers, books and book chapters, grant and other reports.

Courses:
Graduate level courses in: Ecology of Grazing Land Systems; Special Topics in Crop Physiology and Ecology; Forage Crops and their Management; Experimental Designs; Research Planning

Education:
Ph.D.                Iowa State University, Ames, IA        1954    Crop Ecology & Soil Management
M.S.                Cornell University, Ithaca, NY            1951    Crop Production & Plant Breeding
B.S.                 University of Wisconsin, Madison      1949    Agronomy & Soils

Professional Activities:
            American Society of Agronomy (Fellow, 1973)
            Crop Science Society of America (Fellow, 1996)
            Professional Member, American Meteorological Society
            University of Tennessee 1974‑1975 Macebearer
            American Forage Grassland Council (National Merit Award, 1977)
            Crop Science Society of America 1982‑1985 Board of Directors
            American Society of Agronomy 1982‑1985   Board of Directors
            Associate Editor, Crop Science (1986‑1989)
            Associate Editor, J. Production Agriculture (1986‑1991)
            Referee, Foundation for Research, Science and Technology, New Zealand
            Southern Appalachian Science & Engineering Fair
            International Science & Engineering Fair Chair of Judging (1988)
            University of Tennessee Faculty Senator

Professional International Experiences (1952-2002) in:
New Zealand                                       France             Republic of Cape Verde
Peoples Republic of Guinea               Turkey             Yugoslavia
Brazil                                                   Australia          Japan 
Jamaica

Research:
Dr. Fribourg’s primary responsibility in research was the ecology of forage crops in management systems.  Primary emphasis was placed on cooperative, multidisciplinary field research aimed at resolving the tall fescue [Lolium arundinaceum (= Festuca arundinacea)] toxicosis problem.  Tall fescue is a major grass in the eastern United States.  Tennessee is in the center of its range of adaptation and use and has about 3.5 million acres of tall fescue pastures.  Tall fescue toxicosis has been associated with the wild type of the endophytic fungus Neotyphodium coenophialum.  Cattle consuming endophyte infected tall fescue have reduced growth, lowered conception, reduced milk production, and have intolerance to heat, when compared to performance by similar animals grazing endophyte free tall fescue.  The interdisciplinary team now involves over a dozen faculty persons representing several UT departments in both applied and basic aspects of the problem.  Dr. Fribourg conducted jointly with colleagues a number of grazing experiments.  These studies serve as the primary vehicle for developing new and practical management strategies that Tennessee producers can use in their operations, as well as providing animal tissue and blood samples from cattle grazing infested and endophyte free pastures for more basic investigations.  New symbiotic associations of tall fescue and novel Neotyphodium selections produce no measurable amounts of ergovaline, the major alkaloid associated with tall fescue toxicosis in cattle; these are also being evaluated.  Other field studies are quantifying methane exhalations by ruminants, relating these to production efficiency.

For more details, please see the Fescue Home Page: http://ohld.ag.utk.edu/pss/fescue/

Selected Publications:

Fribourg, H. A. 2013. Escape to Freedom – A story of survival, dreams, betrayals, and accomplishments. Amazon Kindle e-book. (http://www.amazon.com/)

Hannaaway, D. B., and H. A. Fribourg (ed.). 2012. Grasslands of the United States. Country Pasture/Forage Resources Profile for the United States of America. Food and Agriculture Organization of the United Nations. Rome, Italy.
http://www.fao.org/ag/AGP/AGPC/doc/Counprof/usa/usa.html.

Fribourg, H. A.,  D. B. Hannaway, and C. P. West (ed.) 2010. Tall Fescue for the Twenty-first Century. http://forages.oregonstate.edu/tallfescuemonograph. (verified 17 Feb. 2010).
 
Fribourg, H. A.,  D. B. Hannaway, and C. P. West (ed.) 2009. Tall Fescue for the Twenty-first Century. Agron. Monog. 53. ASA, CSSA, SSSA. Madison, WI. 540 pp.

Fribourg, H. A.,  D. B. Hannaway, and C. P. West (ed.) 2009. Tall Fescue for the Twenty-first Century.                                                                                                         http://forages.oregonstate.edu/tallfescuemonograph               

Fribourg, H. A., D. B. Hannaway, and C. P. West. 2009. Accomplishments and Challenges. pp. 511-515.  In H. A. Fribourg,  D. B. Hannaway, and C. P. West (ed.) Tall Fescue for the Twenty-first Century. Agron. Monog. 53. ASA, CSSA, SSSA. Madison, WI.

Fribourg, H. A., and G. Milne. 2009. Establishment and renovation of old sods for forage. pp. 67-83.  In H. A. Fribourg,  D. B. Hannaway, and C. P. West (ed.) Tall Fescue for the Twenty-first Century. Agron. Monog. 53. ASA, CSSA, SSSA. Madison, WI.

Fribourg, H. A. 2008. Biomass energy - Food or fuel - A global perspective. NACTA J. June 2008. pp. 40-57.

Fribourg, H. A. 2006. Collapse: An ethical book review. J. Nat. Resour. Life Sci. Educ. 35:24-25.
                                                                                   
Fribourg, H. A. 2005. Where are Land‑Grant Colleges Headed? J. Nat. Resour. Life Sci. Educ. 34:40‑43.

Waller, J. C., A. E. Fisher, H. A. Fribourg, and C. J. Richards. 2005. Reduce tall fescue toxicosis in Festuca arundinacea forage systems with legumes. Proc. XXth Intern. Grassld. Cong. Dublin , Ireland. 26 June ‑ 1 July. p. 306.

Fribourg, H. A., and J. C. Waller. 2004. World Tour of Endophyte Updates -- U.S.A. In Neotyphodium in Cool-Season Grasses. C. A. Roberts, C. P. West, and D. E. Spiers (ed.). Blackwell Pub. Co., Ames, IA.  pp. 3-22.

Fribourg, H. 2003. I Gave You Life Twice - A story of survival, dreams, betrayals and accomplishments - An autobiographical memoir. 1st Books Library (Authorhouse), Bloomington, IN. 251 pp.

Wells, G. R., H. A. Fribourg, S. E. Schlarbaum, J. T. Ammons, and D. G. Hodges. 2003. Alternate land uses for marginal soils. J. Soil Water Conserv. 58:73-81.

Fribourg, H., J. Waller, ,G. Latch, L. Fletcher, H. Easton, and A. Stratton. 2002. Evaluation under grazing of Festuca arundinacea cultivars infected with nontoxic endophytes. Proc. 19th Gen. Meet. European Grassld. Fed., 27-30 May, La Rochelle, France. pp. 530-531.

Waller, J. C., H. A. Fribourg, A. E. Fisher, M. A. Pavao-Zuckerman, and T. Ingle. 2002. Methane emissions by Bos taurus grazing tall fescue pastures. Proc. 19th Gen. Meet. European Grassld. Fed., 27-30 May, La Rochelle, France.  pp. 748-749.

Fribourg, H. A., J. C. Waller, A. E. Schultze, B. W. Rohrbach and J. W. Oliver. 2001. Grazing endophyte infested tall fescue and changes in bovine blood components and gain. Proc. XIX Intern. Grassld. Cong., Sào Pedro, Sào Paulo, Brasil. Feb. pp. 609-610.

Waller, J. C., H. A. Fribourg, C. Dixon, A. E. Fisher, and B.V. Conger. 2001. Orchardgrass pastures for early weaned beef calves. Proc. XIX Intern. Grassld. Cong., Sào Pedro, Sào Paulo, Brasil. Feb. pp. 839-840.

Oliver, J. W., A. E. Schultze, B. W. Rohrbach, H. A. Fribourg, T. Ingle, and J. C. Waller. 2000. Alterations in hemograms and serum biochemical analytes of steers after prolonged consumption of endophyte-infected tall fescue. J. Anim. Sci: 78:1029-1035.

Oliver, J., J. Waller, H. Fribourg, K. Gwinn, M. Cottrell, and S. Cox. 2000. Aminoacidemia in cattle grazed on endophyte-infected tall fescue. Proc. Fourth Intern. Neoptyphodium/Grass Interactions Symp., 27-29 Sept., Soest, Germany. pp. 66,  241‑244.

Waller, J., H. Fribourg, R. Carlisle, G. Latch, L. Fletcher, R. J. M. Hay, H.S. Easton, and B. Tapper. 2000. Tall Fescues With Novel Endophytes in Tennessee. Proc. Fourth Intern. Neoptyphodium/Grass Interactions Symp., 27-29 Sept., Soest, Germany. p. 142.

Pavao-Zuckerman, M. A., J. C. Waller, T. Ingle, and H. A. Fribourg. 1999. Methane emissions of beef cattle grazing tall fescue pastures at three levels of endophyte infestation. J. Enviro. Qual. 28:1963-1969.

Oliver, J. W., J. R. Strickland, J. C. Waller, H. A. Fribourg, R. D. Linnabary, and L. K. Abney. 1998. Endophytic fungal toxin effect on adrenergic receptors in lateral saphenous veins (cranial branch) of cattle grazing tall fescue. J. Anim. Sci. 76:2853-2856.

Gwinn, K.D., H.A. Fribourg, J.C. Waller, A.M. Saxton, and M. Smith.  1998.  Changes in Neotyphodium coenophialum infestation levels in tall fescue pastures due to different grazing pressures.  Crop Sci. 38:201-204.
                                                           
Fribourg, H.A.  1997.  Fescue.  In Encyclopedia of Science & Technology. 8th. ed.  vol.7:99.  McGraw-Hill, New York.

Fribourg, H.A., J.C. Waller, R.J. Carlisle, R.J.M. Hay, L.R. Fletcher, H.S. Easton, and G.C.M. Latch.  1997.  Tall fescue from down under  --  Scientists from New Zealand help in Tennessee tall fescue toxicosis research.  Tennessee AgriScience 184:14-17.

Fribourg, H.A., and J.C. Waller.  1997.  Environmental quality and production efficiency of beef cattle in tall fescue pasture systems.  Proc. XVIII Intern. Grassld. Cong., Winnipeg, Manitoba, Canada, 8-19 June.  p. 11-11 to 11-12.

Waller, J.C., and H.A. Fribourg.  1997.  Strategies for improving efficiency of beef cattle in tall fescue pasture systems.  Proc. XVIII Intern. Grassld. Cong., Winnipeg, Manitoba, Canada, 8-19 June.    p. 11-9 to 11-10.

Fribourg, H.A., and J.C. Waller.  1996.  Pasture management challenges in clover-endophyte free tall fescue mixtures.  Proc. Amer. Forage & Grassld Council Ann. Meetg., Vancouver, BC, June 13-15.  p. 84-88.

Coley, A.B., H.A. Fribourg, M.R. Pelton, and K.D. Gwinn.  1995.  Effects of tall fescue endophyte infestation on small mammal abundance.  J. Environ. Qual. 24:472-475.

Fribourg, H.A., J.C. Waller, K.D. Gwinn, J.R. Strickland, J.W. Oliver, J.H. Reynolds, B.H. Erickson, and F.N. Schrick.  1995.  Tall fescue toxicosis research in Tennessee -- An update.  Tennessee AgriSci. 174:35-42.

Fribourg, H.A., J.C. Waller, J.H. Reynolds, M.A. Mueller, and K.D. Gwinn.  1995.  Stand persistence of tall fescue cultivars free of or infested with Acremonium coenophialum.  Proc. IVth Intern. Symp. Nutrition Herbivores.  Annales de Zootechnie 44 (Supp.):124.

Waller, J.C., H.A. Fribourg, J.H. Reynolds, R.B. Graves, and K.D. Gwinn.  1995.  Nutrient composition of tall fescue pasture forage free of or infested with Acremonium coenophialum.  Proc. IVth Intern. Symp. Nutrition Herbivores. Annales de Zootechnie 44 (Supp.):125.

Thompson, R.W., H.A. Fribourg, J.C. Waller, W.L. Sanders, J.H. Reynolds, J.M. Phillips, S.P. Schmidt, R.J. Crawford, Jr., V.G. Allen, D.B. Faulkner, C.S. Hoveland, J.P. Fontenot, R.J. Carlisle, and P.P. Hunter.  1993.  Combined analysis of tall fescue steer grazing studies in the eastern United States.  J. Anim. Sci. 71:1940-1947.

Fribourg, H.A.  1993.  Toxicoses in animals and management strategies to reduce the effects of endophyte toxins -- [invited] Facilitator's comments.  In D.E. Hume, G.C.M. Latch, and H.S. Easton (ed) Proc. 2nd. Intern. Symp. on Acremonium/Grass Interactions (Plenary papers), Palmerston North, New Zealand. pp. 123-127. ISSN # 1052-5181.

Fribourg, H.A., R.W. Thompson, J.C. Waller, and W.L. Sanders.  1993.  Inference space choices in combined mixed model analyses of discrete grazing trials.  Proc. XVII Intern. Grassland Congr., Palmerston North, New Zealand, 8-21 Feb. vol. I:762-763.

Waller, J.C., H.A. Fribourg, R.W. Thompson, and A.B. Chestnut.  1993.  Steer performance from tall fescue pastures with three levels of Acremonium coenophialum infestation.  Proc. XVII Intern. Grassland Congr., Hamilton, New Zealand, 13-16 Feb.  vol. II:1377-1378.

Fribourg, H.A., K.D. Gwinn, and C.L. Schardl.  1992.  Glossary of Tall Fescue Toxicosis Terminology. J. Prod. Agric. 5:189-190.

Fribourg, H.A., A.B. Chestnut, R.W. Thompson, J.B. McLaren, R.J. Carlisle, K.D. Gwinn, M.C. Dixon, and M.C. Smith.  1991.  Steer performance in fescue pastures with different levels of endophyte infestation.  Agron. J. 83:777-781.

Fribourg, H.A., C.S. Hoveland, and P. Codron.  1991.  La fétuque élevée et l'Acremonium coenophialum ‑‑ Aperçu de la situation aux Etats Unis.  Fourrages, la Revue de l'Association Française pour la Production Fourragère 126:209-223.

Fribourg, H.A., A.B. Chestnut, R.W. Thompson, J.B. McLaren, R.J. Carlisle, K.D. Gwinn, M.C. Dixon, and M.C. Smith.  1990.  Acremonium coenophialum infestation levels in Festuca arundinacea pastures and steer performance.  In S.S. Quisenberry and R.E. Joost (ed.) Baton Rouge, LA. Proc. Intern. Symp. Acremonium/Grass Interactions. New Orleans LA, November 5‑7, 1990. p. 221‑224.

Thompson, R.W., H.A. Fribourg, and B.B. Reddick.  1989.  Sampling intensity and timing for detecting incidence of Acremonium coenophialum in fescue pastures.  Agron. J. 81:966‑971.

Fribourg, H.A., J.B. McLaren, A.B. Chestnut, and J.C. Waller.  1989.  Recent effects of Acremonium coenophialum Morgan‑Jones & Gams on the performance of beef cattle grazing Festuca arundinacea Schreb.  Proc. XVIth. Intern. Grassland Congr., Nice, France, Oct. 1989(1):705‑706.

Waller, J.C., J.B. McLaren, H.A. Fribourg, A.B. Chestnut, and D.G. Keltner.  1989.  Effects of Acremonium coenophialum infected Festuca arundinacea Schreb. on cow‑calf production.  Proc. XVIth. Intern. Grassland Congr., Nice, France, Oct. 1989(2):1193‑1194.

Fribourg, H.A., S.R. Wilkinson, and G.N. Rhodes, Jr.  1988.  Switching from fungus infested to fungus free tall fescue pastures.  J. Prod. Agric. 1:122‑127.

Fribourg, H.A., B.B. Reddick, J.M. Boffa, G. Delaunay, and R.W. Thompson.  1988.  Comparison of microscope stain and ELISA methods to detect Acremonium coenophialum in tall fescue. Tennessee Farm & Home Sci. 148:14‑19.

Fribourg, H.A., D.G. Keltner, and J.B. McLaren.  1986.  Effects of Acremonium coenophialum on forage intake and beef production from tall fescue pastures.  In F.M. Borba and J.M. Abreu (ed.)  Proc. 11th. Meet. European Grassld. Fed., Troia, Portugal, 4‑9 May, Sociedade Portuguesa Pastos Forrageras, P.O. Box 67351, Elvas, Portugal. p.489‑493.

Contact Me:
            Dr. Henry A. Fribourg                                  Telephone:  (865) 560-1247
            7421 Somerset Road                                  e-mail: fribourg@tennessee.edu.us
Knoxville, TN 37909, U.S.A.