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Animal Science Faculty

David Ledoux

David R. Ledoux


Professor

Animal Nutrition


112A Animal Science Research Center
Division Of Animal Sciences
Columbia, MO 65211
  • Phone: (573) 882-1140
  • Email
  • Curriculum Vitae

Education


University of Missouri

BS Animal Science 1978-81
MS Animal Science 1981-84

University of Florida

PhD Animal Science 1984-87

Academic Appointment


Professor, 2003 - Present
Associate Professor, 1996 - 2003
Assistant Professor, 1990 – 1996
Graduate Faculty, 1990 - Present
Doctoral Faculty, 1992 - Present

Professional Development/Employment


Professor, Animal Sciences Department
University of Missouri, Columbia, MO, September 2003 - Present

Associate Professor, Animal Sciences Department, University of Missouri, Columbia, MO, September 1996 – August 2003

Assistant Professor, Animal Sciences Department, University of Missouri, Columbia, MO, June 1990 – August 1996

Postdoctoral Research Associate, USDA‑ARS Animal Physiology Unit, University of Missouri, Columbia, MO, November 1987 – May 1990

Graduate Research Assistant, Animal Science Department, University of Florida, Gainesville, FL, December 1984 – November 1987

Graduate Council Fellow, Animal Science Department, University of Florida, Gainesville, FL, January 1984 – November 1984

Graduate Research Assistant, Animal Science Department, University of Missouri, Columbia, MO, August 1981 – December 1983

Credit Analyst/Supervisor, Guyana Agricultural Bank, Guyana, South America, May 1976 – August 1977

Instructor/Farm Manager, Guyana School of Agriculture, Guyana, South America, September 1973 – December 1974

Extension Agent, Department of Agriculture, Guyana, South America, September 1970 – August 1973

Professional Affiliations


  • Council for Agricultural Science and Technology (CAST)
  • American Institute of Nutrition
  • Poultry Science Association
  • American Society of Animal Science
  • World Poultry Science Association
  • Minorities in Agriculture, Natural Resources and Related Sciences (MANRRS)

Awards and Recognition


Provost Award for Leadership in International Education, 2011

MU International Scholar Award, 2009

AFIA Poultry Nutrition Research Award, PSA - 2002

Fulbright Scholar Research/Lecturing Award 2002-2003

University Faculty Diversity Enhancement Award 2002

Board Member, Council for Agricultural Science and Technology (CAST) 1999 – Present

Outstanding Advisor Award Nominee 1997, 1999, 2001, 2002, College of Agriculture, Food and Natural Resources

Faculty Leadership Program Fellow - University of Oklahoma Health Sciences Center, Summer 1995

Graduate, Honors Program ‑ University of Missouri‑Columbia

Graduate Council Fellow ‑ University of Florida

Gamma Sigma Delta ‑ Agriculture Honor Society

Sigma Xi ‑ Scientific Research Society

Recipient, BASF Corporation Scholarship "Growth is a Promise"

Teaching


Undergraduate

AS 2140          Companion Animals (3 credit hours)
AS 3232          Animal Feeds and Feeding (3 credit hours)  

Graduate

AS 9442          Vitamins and Minerals (4 credit hours)
AS 9452          Mycotoxins (3 credit hours)
AS 8087          Seminar (1 credit hour)

Research Activities


My current research program involves two areas of emphasis. The first area involves an investigation into methods for increasing mineral utilization by poultry. The other area of research emphasis involves an investigation into the effects of mycotoxin contamination of poultry feed (or feed ingredients) on performance and health of poultry, and an evaluation of methods used to detoxify contaminated feedstuffs.

Publication Summary


Peer Reviewed Journal Manuscripts: 91
Abstracts for Scientific Meetings: 150
Non-refereed Manuscripts: 38

Refereed Journal Publications

  1. Ledoux, D. R., J. E. Williams, T. E. Stroud, G. B. Garner and J. A. Paterson. 1985. Influence of forage level on passage rate, digestibility and performance of cattle. J. Anim. Sci. 61:1559.
  2. Ledoux, D. R., J. E. Williams, T. E. Stroud and M. Ellersieck. 1985. Ytterbium as a particulate phase marker for measurement of digesta passage rate in ruminants. Nutr. Rep. Int. 32:111.
  3. Stroud, T. E., J. E. Williams, D. R. Ledoux and J. A. Paterson. 1985. The influence of sodium bicarbonate and dehydrated alfalfa as buffers on steer performance and ruminal characteristics. J. Anim. Sci. 60:551.
  4. Ledoux, D. R., R. D. Miles, C. B. Ammerman and R. H. Harms. 1987. Interaction of dietary nutrient concentration and supplemental copper on chick performance and tissue copper concentration. Poultry Sci. 66:1379.
  5. Ledoux, D. R., P. R. Henry, C. B. Ammerman and R. D. Miles. 1989. Effect of dietary copper on tissue mineral composition as an estimate of copper bioavailability in broiler chicks. Nutr. Rep. Int. 39:1117.
  6. Ledoux, D. R., P. R. Henry, C. B. Ammerman and R. D. Miles. 1989. Effect of dietary copper and age on tissue mineral composition of broiler‑type chicks as a bioassay of inorganic copper sources. Nutr. Rep. Int. 40:53.
  7. Ledoux, D. R., P. R. Henry, C. B. Ammerman, P. V. Rao and R. D. Miles. 1991. Estimation of the relative bioavailability of inorganic copper sources for nonruminants using tissue uptake of copper. J. Anim. Sci. 69:215.
  8. Ledoux, D. R. and F. A. Martz. 1991. Ruminal solubilization of selected macrominerals from forages and diets. J. Dairy Sci. 74:1654.
  9. Belyea, J. L., D. R. Ledoux and A. Garcia. 1992. Bioavailability of phosphorus in stabilized and raw rice bran. J. Appl. Poultry Res. 1:315.
  10. Ledoux, D. R., T. P. Brown, T. S. Weibking and G. E. Rottinghaus. 1992. Fumonisin toxicity in broiler chicks. J. Vet. Diagn. Invest. 4:330.
  11. Weibking, T. S., D. R. Ledoux, T. P. Brown and G. E. Rottinghaus. 1993. Fumonisin toxicity in turkeys. J. Vet. Diagn. Invest. 5:75.
  12. Ledoux, D. R., C. D. Knight, B. A. Becker and C. A. Baile. 1993. Effects of a porcine somatotropin implant on tissue mineral status of finishing pigs exposed to a thermoneutral or cold environment. J. Anim. Sci. 71:2180.
  13. Weibking, T. S., D. R. Ledoux, A. J. Bermudez, J. R. Turk, G. E. Rottinghaus, E. Wang, and A. H. Merrill, Jr. 1993. Effects of feeding Fusarium moniliforme culture material, containing known levels of fumonisin B1, on the young broiler chick. Poultry Sci. 72:456.
  14. Weibking T. S., D. R. Ledoux, A. J. Bermudez, and G. E. Rottinghaus. 1994. Individual and combined effects of feeding Fusarium moniliforme culture material containing known levels of fumonisin B1, and Aflatoxin B1 in the young turkey poult. Poultry Sci. 73:1517.
  15. Zyla, K., D. R. Ledoux, and T. L. Veum, 1995. Complete enzymic dephosphorylation of corn-soybean meal feed under simulated intestinal conditions of the turkey. J. Agric. Food Chem. 43:288.
  16. Weibking T. S., D. R. Ledoux, A. J. Bermudez, J. R. Turk, and G. E. Rottinghaus. 1995. Effects on turkey poults of feeding Fusarium moniliforme M-1325 culture material grown under different environmental conditions. Avian Diseases. 39:32.
  17. Ledoux, D. R., A. J. Bermudez, G. E. Rottinghaus, J. Broomhead, and G. A. Bennett, 1995. Effects of feeding Fusarium fujikuroi culture material, containing known levels of moniliformin, in young broiler chicks. Poultry Sci. 74:297.
  18. Ledoux, D. R., K. Zyla, and T. L. Veum, 1995. Substitution of phytase for inorganic phosphorus for turkey hens. J. Appl. Poultry Res. 4:157.
  19. Bermudez, A. J., D. R. Ledoux, and G. E. Rottinghaus. 1995. Effects of Fusarium moniliforme culture material, containing known levels of fumonisin B1, on ducklings. Avian Diseases. 39:879.
  20. Zyla, K., D. R. Ledoux, A. Garcia, and T. L. Veum. 1995. An In vitro procedure for studying enzymic dephosphorylation of phytate in maize-soya bean feeds for turkey poults. Brit. J. Nutr. 74:3.
  21. Ledoux, D. R., E. B. Pott, P. R. Henry, C. B. Ammerman, A. M. Merritt, and J.B. Madison. 1995. Estimation of the relative bioavailability of inorganic copper sources for sheep. Nutr. Res. 15:1803.
  22. Ledoux, D. R., P. R. Henry, and C. B. Ammerman. 1996. Response to high dietary copper and duration of feeding time on tissue copper concentration of sheep. Nutr. Res. 16(1):69.
  23. Bermudez, A. J., D. R. Ledoux, and G. E. Rottinghaus. 1996. The chronic effects of Fusarium moniliforme culture material, containing known levels of fumonisin B1, in turkeys. Avian Diseases. 40:231.
  24. Zyla, K., D. R. Ledoux, M. Kujawski, and T. L. Veum. 1996. The efficacy of an enzymic "cocktail" and a fungal mycelium in dephosphorylating corn-soybean meal based feeds fed to growing turkeys. Poultry Sci. 75:381.
  25. Ledoux, D. R., A. J. Bermudez, and G. E. Rottinghaus. 1996. The effects of feeding Fusarium moniliforme culture material, containing known levels of fumonisin B1, in the young turkey poult. Poultry Sci. 75:1472.
  26. Bermudez, A. J., D. R. Ledoux, G. E. Rottinghaus, and G. A. Bennett. 1997.The individual and combined effects of the
    Fusarium mycotoxins, moniliformin and fumonisin B1, in turkeys. Avian Diseases. 41:304.
  27. Liu, J., D. W. Bollinger, D. R. Ledoux, M. R. Ellersieck, and T. L. Veum.1997.Soaking increases the efficacy of supplemental microbial phytase in a low-phosphorus corn-soybean meal diet for growing pigs. J. Animal Sci. 75:1292.
  28. Bermudez, A. J., D. R. Ledoux, G. E. Rottinghaus, P. L. Stogsdill, and G. A. Bennett. 1997. Effects of feeding Fusarium fujikuroi culture material, containing known levels of moniliformin, in turkey poults. Avian Pathology. 26:565.
  29. Liu, Z., D. R. Ledoux, and T. L. Veum. 1997. In vitro procedure for predicting the enzymatic dephosphorylation of phytate in corn-soybean meal diets for growing swine. J. Agric. Food Chem. 45:2612.
  30. Bermudez, A. J., B. Freischutz, R. K. Yu, D. Nonneman, G. S. Johnson, G. D. Boon, P. L. Stogsdill, and D. R. Ledoux. 1997. Heritability and biochemistry of Gangliosidosis in Emus (Dromaius novaehollandiae). Avian Diseases. 41:838.
  31. Liu, Z., D. W. Bollinger, D. R. Ledoux, and T. L. Veum. 1998. Lowering the dietary calcium to total phosphorus ratio increases phosphorus utilization in low-phosphorus corn-soybean meal diets supplemented with microbial phytase for growing-finishing pigs. J. Anim. Sci. 76:808.
  32. Liu, J., D. R. Ledoux, and T. L. Veum, 1998. In vitro prediction of phosphorus availability in feed ingredients for swine. J. Agric. Food Chem. 46:2678-2681.
  33. Ledoux, D. R., G. E. Rottinghaus, A. J. Bermudez, and M. Alonso-Debolt, 1999. Efficacy of a hydrated sodium calcium aluminosilicate to ameliorate the toxic effects of aflatoxin in broiler chicks. Poultry Sci. 78:204.
  34. Ledoux, D. R., R. L. Belyea, M. A. Wallig, and M. E. Tumbleson, 1999. Effects of feeding crambe meal upon intake, gain, health and meat quality of broiler chicks. Animal Feed Tech. 76:227-240.
  35. Morris, C. M., Y. C. Li, D. R. Ledoux, A. J. Bermudez, and G. E. Rottinghaus, 1999. The individual and combined effects of feeding moniliformin, supplied by Fusarium fujikuroi culture material, and deoxynivalenol in young turkey poults. Poultry Sci. 78:1110-1115.
  36. Li, Y. C., D. R. Ledoux, A. J. Bermudez, K. Fritsche, and G. E. Rottinghaus, 1999. Effects of fumonisin B1 on selected immune responses in broiler chicks. Poultry Sci. 78:1275-1282.
  37. Zyla, K., D. Gogol, J. Koreleski, S. Swiatkiewicz, and D. R. Ledoux, 1999. Simultaneous application of phytase and xylanase to broiler feeds based on wheat: feeding experiment with growing broilers. J. Sci. Food Agric. 79:1841-1848.
  38. Zyla, K., D. Gogol, J. Koreleski, S. Swiatkiewicz, and D. R. Ledoux. 1999.Simultaneous application of phytase and xylanase to broiler feeds based on wheat: In vitro Measurements of phosphorus and pentose release from wheats and wheat-based feeds. J. Sci. Food Agric. 79: 1832-1840.
  39. Li, Y. C., D. R. Ledoux, A. J. Bermudez, K. Fritsche, and G. E. Rottinghaus, 2000. Effects of moniliformin on performance and immune function in broiler chicks. Poultry Sci. 79:26.
  40. Zyla, K., J. Koreleski, S. Swiatkiewicz, A. Wikiera, M. Kujawski, J. Piironen, and D. R. Ledoux, 2000. Effects of phosphorolytic and cell wall degrading enzymes on the performance of growing broilers fed wheat-based diets containing different calcium levels. Poultry Sci.79:66.
  41. Zyla, K., J. Koreleski, and D. R. Ledoux, 2000. Enzymes as a phosphorus management tool in poultry nutrition. Proceedings of 1999 Food Biotechnology conference. Progress in Biotechnology 17. Food Biotechnology (S. Bielecki, J. Tramper, and J. Polak, Eds.) Pp 317-322.
  42. Liu, J., D. W. Bollinger, D. R. Ledoux and T. L. Veum, 2000. Effects of dietary calcium to phosphorus ratios on apparent absorption of calcium and phosphorus in the small intestine, cecum, and colon of pigs. J. Anim. Sci. 78:106.
  43. Li, Y. C., D. R. Ledoux, A. J. Bermudez, K. Fritsche, and G. E. Rottinghaus, 2000. The individual and combined effects of fumonisin B1 and moniliformin on performance and selected immune parameters in turkey poults. Poultry Sci. 79:871-878.
  44. Li, Y. C., D. R. Ledoux, T. L. Veum, V. Raboy, and D. S. Ertl, 2000.Effects of low phytic acid corn on phosphorus utilization, performance, and bone mineralization in broiler chicks. Poultry Sci. 79:1444-1450.
  45. Zyla, K., A. Wikiera, J. Koreleski, S. Swiatkiewicz, J. Piironen, and D. R. Ledoux, 2000. Comparison of the efficacy of a novel Aspergillus niger mycelium with separate and combined effectiveness of phytase, acid phosphatase and pectinase in dephosphorylating wheat-based feeds fed to growing broilers. Poultry Sci. 79:1434-1443.
  46. Zyla, K., J. Koreleski, S. Swiatkiewicz, D. R. Ledoux, and J. Piironen, 2001. Influence of supplemental enzymes on the performance and phosphorus excretion of broilers fed wheat-based diets to six weeks of age. Animal feed Science and Technology. 89:113-118.
  47. Li, Y. C., D. R. Ledoux, T. L. Veum, V. Raboy, K. A. Young, A. Cook, K. Zyla, and A. Wikiera, 2001. Bioavailability of phosphorus in low phytic acid barley. J. Applied Poultry Res. 10:86-91.
  48. Li, Y. C., D. R. Ledoux, T. L. Veum, V. Raboy, K. A. Young, A. Cook, K. Zyla, and A. Wikiera, 2001. Low phytic acid barley improves performance, bone mineralization, and phosphorus retention in turkey poults. J. Appl.Poultry Res. 10:178-185.
  49. Veum, T. L., D. R. Ledoux, V. Raboy, and D. S. Ertl, 2001. Low-phytic acid corn improves nutrient utilization for growing pigs. J. Anim. Sci. 79:2873-2880.
  50. Broomhead, J. N., D. R. Ledoux, A. J. Bermudez, and G. E. Rottinghaus, 2002. Chronic effects of fumonisin B1 in broilers and turkeys fed dietary treatments to market age. Poultry Science 81:56-61.
  51. Veum, T. L., D. R. Ledoux, D. W. Bollinger, V. Raboy, and A. Cook, 2002. Low-phytic acid barley improves calcium and phosphorus utilization and growth performance in growing pigs. J. Anim. Sci. 80:2663-2670.
  52. Broomhead, J. N., D. R. Ledoux, A. J. Bermudez, and G. E. Rottinghaus, 2002. Chronic effects of moniliformin in broilers and turkeys fed dietary treatments to market age. Avian Diseases 46:901-908.
  53. Ledoux, D. R., A. J. Bermudez, and G. E. Rottinghaus, 2003. Mycotoxins:Risks in Plant, Animal, and Human Systems. Task Force Report No. 139, Council for Agricultural Science and Technology (CAST), Ames, IA.
  54. Kumar, A., N. Jindal, C. L. Shukla. Y. Pal, D. R. Ledoux, and G. E. Rottinghaus, 2003. Effects of ochratoxin A on Escherichia coli challenged broiler chicks. Avian Diseases 47:415-424.
  55. Watts, C. M., Y. C. Chen, D. R. Ledoux, J. N. Broomhead, A. J. Bermudez, and G. E. Rottinghaus, 2003. Effects of multiple mycotoxins and a hydrated sodium calcium aluminosilicate in poultry. Int. J. Poultry Sci. 2(6):372-378.
  56. Ledoux, D. R., J. N. Broomhead, A. J. Bermudez, and G. E. Rottinghaus, 2003. Individual and combined effects of the Fusarium mycotoxins fumonisin B1 and moniliformin in broiler chicks. Avian Diseases 47:1368-1375.
  57. Bollinger, D. W., A. Tsunoda, D. R. Ledoux, M. R. Ellersieck, and T. L. Veum, 2004. A simple In Vitro test tube method for estimating the bioavailability of phosphorus in feed ingredients for swine. J. Agric Food Chem. 52:1804-1809.
  58. Kumar, A., N. Jindal, C. L. Shukla, R. K. Asrani, D. R. Ledoux, and G. E. Rottinghaus, 2004. Pathological changes in broiler chicks fed ochratoxin A and inoculated with Escherichia coli. Avian Pathology 33(4):413-417.
  59. Ogido, R., C.A.F. Oliveira, D. R. Ledoux, G. E. Rottinghaus, B. Correa, P. Butkeraitis, T. A. Reis, E. Goncales, and R. Albuquerque, 2004. Effects of prolonged administration of aflatoxin B1 and fumonisin B1 in laying Japanese quail. Poultry Science 83:1953-1958.
  60. Butkeraitis, P., C.A.F. Oliveira, D. R. Ledoux, R. Ogido, R. Albuquerque, J. F. Rosmaninho, and G. E. Rottinghaus, 2004. Effects of fumonisin B1 in laying Japanese quail. British Poultry Science 45(6):798-801.
  61. Ogunbo, S. O., D. R. Ledoux, J. N. Broomhead, A. J. Bermudez, and G. E. Rottinghaus, 2005. Effects of fusaric acid in broiler chicks and turkey poults. Int. J. Poultry Sci. 4(6):356-359.
  62. Bollinger, D. W., A. Tsunoda, D. R. Ledoux, M. R. Ellersieck, and T. L. Veum, 2005. A comparison of the test tube and the dialysis tubing In vitro methods for estimating the bioavailability of phosphorus in feed ingredients for swine J. Agric. Food Chem. 53:3287-3294.
  63. Deshmukh, S., R. K. Asrani, N. Jindal, D. R. Ledoux, G. E. Rottinghaus, M. Sharma, and S. P. Singh, 2005. Effects of Fusarium moniliforme culture material containing known levels of fumonisin B1 on progress of Salmonella Gallinaruminfection in Japanese quail: Clinical signs and hematologic studies. Avian Diseases 49:274-280.
  64. Gupta, S., N. Jindal, R. S. Khokhar, A. K. Gupta, D. R. Ledoux, and G. E. Rottinghaus, 2005. Effects of ochratoxin A on broiler chicks challenged with Salmonella gallinarum. British Poultry Science 46(4):443-450.
  65. Deshmukh, S., R. K. Asrani, D. R. Ledoux, N. Jindal, A. J. Bermudez, G. E. Rottinghaus, M. Sharma, and S. P. Singh, 2005. Individual and combined effects of Fusarium moniliforme culture material containing known levels of fumonisin B1 and Salmonella gallinarum infection on liver of Japanese quail. Avian Diseases 49:592-600.
  66. Tessari, E.N.C., C.A.F. Oliveira, A.L.S.P. Cardoso, D. R. Ledoux, and G. E. Rottinghaus, 2005. Effects of aflatoxin B1 and fumonisin B1 on the levels of serum aspartate amino-transferase and total protein of broilers. Arq. Inst. Biol. 72(2):185-189.
  67. Asrani, R. K., R. C. Katoch, V. K. Gupta, S. Deshmukh, N. Jindal, D. R. Ledoux, G. E. Rottinghaus, and S. P. Singh, 2006. Effects of feeding Fusarium verticillioides (Formerly Fusarium moniliforme) culture material containing known levels of fumonisin B1 in Japanese quail (Coturnix coturnix japonica). Poultry Sci. 85:1129-1135.
  68. Tessari, E.N.C., C.A.F. Oliveira, A.L.S.P. Cardoso, D. R. Ledoux, and G. E. Rottinghaus, 2006. Effects of aflatoxin B1 and fumonisin B1 on body weight, antibody titres, and histology of broiler chicks. British Poultry Science 47(3):357-364.
  69. Tessari, E.N.C., C.A.F. Oliveira, A.L.S.P. Cardoso, D. R. Ledoux,and G. E. Rottinghaus, 2006. Hematological parameters of broiler chicks fed rations containing aflatoxin B1 and fumonisin B1. Ciencia Rural 36(3):924-929.
  70. Oliveira, C.A.F., R. Ogido, D. R. Ledoux, G. E. Rottinghaus, B. Correa, T. A. Reis, and E. Goncalez, 2007. The quality of eggs from Japanese quail, Coturnix japonica, fed rations containing aflatoxin B1 and fumonisin B1. The Journal of Poultry Sci. (Japanese). 44:29-33.
  71. Linares, L. B., J. N. Broomhead, E. A. Guaiume, D. R. Ledoux, T. L. Veum, and V. Raboy, 2007. Effects of low phytic acid barley on zinc utilization in young broiler chicks. Poultry Sci.86:299-308.
  72. Butkeraitis, P., A.A.F. Oliveira, D. R. Ledoux, and G. E. Rottinghaus, 2006. Effects of fumonisin B1 on hematology and serum biochemistry of laying Japanese quail. J. Poult. Sci. (Japanese) 43:301-306.
  73. Oliveira, C.A.F., R. Ogido, D. R. Ledoux, G. E. Rottinghaus, B. Correa, T. A. Reis, and E. Goncalez, 2007. The quality of eggs from Japanese quail, Coturnix japonica, fed rations containing aflatoxin B1 and fumonisin B1. J. Poult. Sci. (Japanese) 44:29-33.
  74. Veum, T. L., D. R. Ledoux, and V. Raboy, 2007. Low-phytate barley cultivars improves the utilization of phosphorus, calcium, nitrogen, energy, and dry matter in diets fed to young swine.  J. Anim. Sci. 85:961-971.
  75. Oliveira, C.A.F., P. Butkeraitis, D. R. Ledoux, and G. E. Rottinghaus, 2007. Effect of fumonisin B1 on body weight and histopathology of Japanese quail. Ciencia Rural, Santa Maria, v37, n.1, p284-287.
  76. Ogunbo, S. O., J. N. Broomhead, D. R. Ledoux, A. J. Bermudez, and G. E. Rottinghaus, 2007. The individual and combined effects of fusaric acid and T-2 toxin in broilers and turkeys. Int. J. Poultry Science 6(7):484-488.
  77. Deshmukh, S., R. K. Asrani, V. K. Gupta, D. R. Ledoux, G. E. Rottinghaus, and A. J. Bermudez, 2007. Pathological changes in extrahepatic organs and agglutinin response to Salmonella gallinarum infection in Japanese quail fed Fusarium vertcillioides culture material containing known levels of fumonisin B1. Avian Disease 51:705-712.
  78. Sharma, D., R. K. Asrani, D. R. Ledoux, N. Jindal, G. E. Rottinghaus, A. J. Bermudez, and V. K. Gupta, 2008. Individual and combined effects of fumonisin B1 and moniliformin toxicity on clinicopathological and cell mediated immune response in Japanese quail. Poultry Sci. 87:1039-1051.
  79. Gowda, N.K.S., D. R. Ledoux, G. E. Rottinghaus, A. J. Bermudez, and Y. C. Chen, 2008. Efficacy of turmeric (Curcuma longa) and a hydrated sodium calcium aluminosilicate to ameliorate the adverse effects of aflatoxin in broiler chicks. Poultry Sci. 87:1125-1130.
  80. Gupta, S., N. Jindal, R. S. Khokhar, R. K. Asrani, D. R. Ledoux, and G. E. Rottinghaus, 2008. Individual and combined effects of ochratoxin A and Salmonella enterica serovar Gallinarum infection on pathological changes in broiler chickens. Avian Pathology, 37:3, 265-272.
  81. He, L., Y. Liu, M. Lin, J. Awika, D. R. Ledoux, H. Li, and A. Mustapha, 2008. A new approach to measure melamine, cyanuric acid, and melamine cyanurate using surface enhanced Raman spectroscopy coupled with gold nanosubstrates. Sens. & Instrumen. Food Qual. 2:66-71.
  82. Dakovic, A., S. Matijasevic, G. E. Rottinghaus,  D. R. Ledoux, P. Butkeraitis, and Z. Sekulic. 2008. Aflatoxin B1 adsorption by natural and copper modified montmorillonite. Colloids and Surfaces B:Biointerfaces 66:20-25.
  83. Gowda, N.K.S. and D. R. Ledoux. 2008. Use of antioxidants in amelioration of mycotoxin toxicity: A Review. Animal Nutrition and Feed Technology 8:1-11.
    Lin, M., L. He, J. Awika, L. Yang, D. R. Ledoux, H. Li, and A. Mustapha, 2008. Detection of melamine in gluten, chicken feed and processed foods using surface enhanced raman spectroscopy and HPLC. J. Food Science 73 (8):129-134.
  84. Yarru, L. P., R. S. Settivari, E. Antoniou, D. R. Ledoux, and G. E. Rottinghaus, 2009. Toxicological and gene expression analysis of the impact of aflatoxin on hepatic function of male broiler chicks. Poultry Sci. 88:360-371.
  85. Kutz, R. E., J. Sampson, D. R. Ledoux, J. Spain, M. Vazquez-Anon, and G. E. Rottinghaus, 2009. Efficacy of Solis, NovasilPlus, and MTB-100 to reduce aflatoxin M1 levels in milk of dairy cows fed aflatoxin B1. J. Dairy Sci. 92:3959-3963.
  86. Veum, T. L., D. R. Ledoux, M. C. Shannon, and V. Raboy, 2009. Effect of graded levels of iron, zinc, and copper supplementation in diets with low-phytate or normal barley on growth performance, bone characteristics, hematocrit volume, and zinc and copper balance of young swine. J. Anim. Sci. 87:2625-2634.
  87. Yarru, L. P., R. S. Settivari, N.K.S. Gowda, G. E. Rottighaus, E. Antoniou, and D. R. Ledoux, 2009. The effects of aflatoxin and turmeric, containing known levels of curcuminoids, on the expression of hepatic genes involved in biotransformation, antioxidant, and immune systems of young broiler chicks. Poultry Sci. 88:2620-2627.
  88. Gowda, N.K.S., D. R. Ledoux, G. E. Rottinghaus, A. J. Bermudez, and Y. C. Chen, 2009. Antioxidant efficacy of curcuminoids from turmeric (Curcuma longa L)powderin broiler chickens fed diets containing aflatoxin B1. Brit. J. Nutrition 102:1629-1634.
  89. Tessari, E. N., E. Kobishigawa, A.L.S.P. Cardoso, D. R. Ledoux, G. E. Rottinghaus, and C.A.F. Oliveira. 2010. Effects of aflatoxin B1 and fumonisin B1 on blood biochemical parameters in broilers. Toxins 2:453-460.
  90. Rustemeyer, S. M., W. R. Lamberson, D. R. Ledoux, G. E. Rottinghaus, D. P. Shaw, R. R. Cockrum, K. L. Kessler, K. J. Austin, and K. M. Cammack. 2010. Effects of dietary aflatoxin on the health and performance of growing barrows. J. Anim. Sci.88:3624-3630.
  91. Rustemeyer, S. M., W. R. Lamberson, D. R. Ledoux, K. Wells, K. J. Austin, and K. M. Cammack. 2011. Effects of dietary aflatoxin on the hepatic expression of apoptosis genes in growing barrows.  J. Anim. Sci. 89:916-925.

Invited Presentations


Universities

  1. Ledoux, D. R., 1997. Mycotoxins and the poultry industry. School of Veterinary Medicine and Department of Food Production, University of the West Indies, July 9, 1997.
  2. Ledoux, D. R., 1998. Strategies available to the poultry industry for reducing the potential for phosphorus pollution. University of Agriculture, Krakow, Poland, October 1, 1998.
  3. Ledoux, D. R., 2000. Strategies available to the poultry industry for reducing the potential for phosphorus pollution. Universidade Estadual Paulista (UNESP), FMVZ, Campus de Botucatu, Botucatu, SP, Brazil, June 1, 2000.
  4. Ledoux, D. R., 2001. Mycotoxins and the poultry industry. University of Guyana, Georgetown, Guyana, July 9, 2001.
  5. Ledoux, D. R., 2002. Mycotoxins-A Short Course. Universidade de Sao Paulo, Pirassununga, Brazil, August 15, 16, 22, 29, 2002.
  6. Ledoux, D. R., 2002. Mycotoxins-A Short Course. Universidade Estadual Paulista (UNESP), Botucatu, Brazil, September 13, 2002.
  7. Ledoux, D. R., 2002. Mycotoxins-A Short Course. Universidade Federal de Goias, Goiania, Brazil, October 28, 2002.
  8. Ledoux, D. R., 2002. Mycotoxins-A Short Course. Universidade Estadual de Maringa, Maringa, Brazil, November 19, 2002.
  9. Ledoux, D. R., 2004. Mycotoxins-A short Course. Universidade de Sao Paulo, Pirassununga, Brazil, October 8, 15, 2004.
  10. Ledoux, D. R., 2004. Mycotoxins-A short Course. Universidade de Sao Paulo, Piricicaba, Brazil, October 14, 2004.
  11. Ledoux, D. R., 2004. Bioavailability of trace minerals. Universidade de Sao Paulo, Piricicaba, Brazil, October 14, 2004.
  12. Ledoux, D. R., 2004. Bioavailability of trace minerals. Universidade de Sao Paulo, Pirassununga, Brazil, October 8, 2004.
  13. Ledoux, D. R., 2005. Bioavailability and antagonists of trace minerals in ruminant metabolism. University of Florida, Gainesville, Florida, February 1-2, 2005.
  14. Ledoux, D. R., 2006. Mycotoxins-A short Course. Universidade de Sao Paulo, Pirassununga, Brazil, September 29 – October 18, 2006.
  15. Ledoux, D. R., 2007. Efficacy of modified adsorbents to ameliorate the toxic effects of aflatoxin, and effects of aflatoxin on hepatic gene expression of male broiler chicks. National Symposium on Animal Biotechnology, National Institute of Animal Nutrition and Physiology, Bangalore, India, November 16, 2007.
  16. Ledoux, D. R., 2007. Efficacy of modified adsorbents to ameliorate the toxic effects of aflatoxin, and effects of aflatoxin on hepatic gene expression of male broiler chicks. National Symposium on Animal Biotechnology, National Institute of Animal Nutrition and Physiology, Bangalore, India, November 16, 2007.
  17. Ledoux, D. R. 2008. Mycotoxins-A Short Course. Universidade   Estadual Paulista (UNESP), Botucatu, Brazil, October 9-10, 2008.
  18. Ledoux, D. R. 2008. Presented lecture entitled ‘Mycotoxins and the livestock industry’ Universidade Estadual Paulista (UNESP), Jaboticabal, Brazil, October 23, 2008.
  19. Ledoux, D. R. 2010. Presented lecture entitled ‘Mycotoxins and the livestock industry’ Universidade Estadual Paulista (UNESP), Jaboticabal, Brazil, October 19-21, 2010.

Corporate

  1. Ledoux, D. R., 1998. New developments in exogenous enzymes in turkey nutrition. Roche Vitamins Inc. 4th International Turkey Advisory Board Meeting, Short Hills, NJ, October 1998.
  2. Ledoux, D. R. and G. E. Rottinghaus, 1999. In vitro and in vivo testing of adsorbents for detoxyifying mycotoxins in contaminated feedstuffs. Alltech’s 15th Annual Feed Symposium, Lexington, Kentucky, May 1999.
  3. Ledoux, D. R., A. J. Bermudez, and G. E. Rottinghaus, 2000. The use of aluminosilicates to control aflatoxicosis – A review. Proc. first Annual OIL-DRI Animal Health Technical Symposium, Montreal, Canada, August 25, 2000.
  4. Ledoux, D. R., 2000. Efficacy of aluminosilicates to alleviate mycotoxicosis in non-ruminants. Standard Nutrition’s Annual Technical Meeting, Council Bluffs, Iowa, October 11, 2000.
  5. Ledoux, D. R., 2000. Efficacy of aluminosilicates to alleviate mycotoxicosis in ruminants. Standard Nutrition’s Annual Technical Meeting, Council Bluffs, Iowa, October 12, 2000.
  6. Ledoux, D. R., A. J. Bermudez, and G. E. Rottinghaus, 2001. The use of aluminosilicate binders to control aflatoxicosis. OIL-DRI Technical Symposium, Bento Goncalves, Rio Grande do Sul, Brazil, October 25, 2001.
  7. Ledoux, D. R., 2001. Effects of Natuphos phytase on amino acid and energy release by turkeys and broilers fed diets formulated on an ideal protein basis. Multi-Sate Poultry Feeding and Nutrition Conference and BASF Corporation Technical Symposium, May 22-24, Indianapolis, Indiana.
  8. Ledoux, D. R., 2001. Mycotoxins and the poultry industry. 1er Precongreso Cientifico Avicola, IASA. Acapulco, Mexico, April 25, 2001.
  9. Ledoux, D. R., J. Broomhead, A. J. Bermudez, and G. E. Rottinghaus, 2001. Mycotoxin-Nutrient interactions. 62nd Minnesota Nutrition Conference & Minnesota Corn Growers Association Technical Symposium. Minneapolis, Minnesota, September 11-12.
  10. Ledoux, D. R. 2002. Resources that Create Results-Commercial Approach to Mycotoxicosis in Poultry and Pigs. II Simposio Sobre Ingredientes na Alimentacao Animal. Uberlandia, MG., Brazil, August 8, 2002.
  11. Ledoux, D. R. 2002. Micotoxinas na Alimentacao de Equinos, 2002. II Simposio de Equideocultura I Simposio Internacional. Pirassununga, Brazil, November 22, 2002.
  12. Ledoux, D. R. 2003. Mycotoxicoses: Commercial poultry operations versus controlled laboratory studies. Supplemental Proceedings 50th Maryland Nutrition Conference for Feed Manufacturers and 1st Mid-Atlantic Nutrition Conference, Feed Quality and Mycotoxin Symposium, Timonium, MD., March 27-28.
  13. Ledoux, D. R., 2003. Is Fumonisin B1 a threat to the poultry industry? American Feed Industry Association (AFIA) Exposition. Minneapolis, Minnesota, May 5-7.
  14. Ledoux, D. R., 2004. Bioavailability of trace minerals. Proceedings 4-State Professional Dairy Management Seminar, Dubuque, IA, June 16-17.
  15. Ledoux, D. R., 2005. Mycotoxins and the poultry industry. Biomin’s Asian Nutrition Forum, Thailand, China, Korea. August 19-31, 2005.
  16. Ledoux, D. R., 2005. Mycotoxins and the poultry industry. Novus International, Inc. September 9, St. Louis, Missouri.
  17. Ledoux, D. R., 2005. Mycotoxins and the poultry industry. Annual Meeting Yugoslavian Poultry Association. September 30, Tara, Serbia.
  18. Ledoux, D. R. 2005. Phytase in Turkey Production – Current Values and Future Benefits. DANISCO Turkey Nutrition Symposium, Novotel Hotel, Budapest, Hungary, September 29, 2005.
  19. Ledoux, D. R. 2006. WEBCAST entitled “Managing risk for grains and feed preservation in the supply chain, sponsored by Cargill. April 25, 2006.
  20. Ledoux, D. R. 2008. Co-taught a short course on the Management and Nutrition of Poultry to mid level managers (34) from several Central American countries. Costa Rica, April 21-25, 2008. Sponsored by United Soybean Board and American Soybean Association.
  21. Ledoux, D. R. 2009. Use of enzymes to increase nutrient utilization from poultry diets containing DDGS. DANISCO Symposium, Raleigh NC, July 24, 2009.
  22. Ledoux, D. R. 2009. Co-taught a short course on the Management and Nutrition of Poultry to mid level managers (34) from several Central American countries. Costa Rica, August 10-14, 2009. Sponsored by United Soybean Board and American Soybean Association.
  23. Ledoux, D. R. 2010. Co-taught a short course on the Management and Nutrition of Poultry to mid level managers (34) from several Central American countries. Costa Rica, May 18-22, 2010. Sponsored by United Soybean Board and American Soybean Association.