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ALBERT DE VRIES, DEPARTMENT OF ANIMAL SCIENCES, UNIVERSITY OF FLORIDA


SELECTED PRESENTATIONS
2000 - present
 
  1. De Vries, A. 2008. Optimization of insemination decisions and value of pregnancy in dairy cattle. 59th Annual Meeting of the European Association for Animal Production. Vilnius, Lithuania, August 24-27.
  2. De Vries, A. 2008. Economics of insemination and pregnancy in dairy cattle. Seminar, Department of Animal Science, University of Minnesota. August 18.
  3. De Vries, A. 2008. Economic optimization of breeding and replacement decisions in dairy cattle. Joint annual meeting, ADSA / ASAS. Indianapolis, IN, July 7-11.  ADSA Foundation Scholar Lecture – Production.
  4. De Vries, A. and J. Olson. 2008. Survival curves and reproductive risk factors for culling in dairy herds. Joint annual meeting, ADSA / ASAS. Indianapolis, IN, July 7-11.
  5. Ely, L., A. De Vries, R. Giesy, M. Sowerby, B. Broaddus, and C. Vann. 2008. Financial performance of dairies in Florida and Georgia in 2006. Joint annual meeting, ADSA / ASAS. Indianapolis, IN, July 7-11.
  6. De Vries, A. 2008. Improved accuracy of computer programs that optimize breeding and replacement decisions for dairy cattle.  Joint annual meeting, ADSA / ASAS. Indianapolis, IN, July 7-11.
  7. Sanders, A. H. and A. De Vries. 2008. Comparison of pregnancy diagnosis strategies by stochastic simulation. Joint annual meeting, ADSA / ASAS. Indianapolis, IN, July 7-11.
  8. De Vries, A. 2008. A unique approach to managing cow turnover: why and when do cows leave? Dairy Analysis 20/20 East Meets West Multi-State Business Management Workshop. Gettysburg, PA, June 3-5.
  9. De Vries, A. 2008. Survival rates and risk factors for culling in dairy herds. 13th International Congress of ANEMBE. Salamanca, Spain, May 9-10.
  10. De Vries, A. 2008. What is improved dairy cattle reproductive performance worth? 13th International Congress of ANEMBE. Salamanca, Spain, May 9-10.
  11. De Vries, A. 2008. Optimal breeding and culling decisions for individual dairy cows. 13th International Congress of ANEMBE. Salamanca, Spain, May 9-10.
  12. De Vries, A. 2008. Sexed semen economics. 45th Annual Florida Dairy Production Conference, Gainesville, FL, April 29.
  13. De Vries, A. 2008. Ranking cows for future profitability. The 2008 Pfizer Dairy Wellness Plan Summit (Western US meeting), Denver, CO, April 18-19.
  14. De Vries, A. 2008. Ranking cows for future profitability. The 2008 Pfizer Dairy Wellness Plan Summit (Eastern US meeting), Weston, FL, March 28-29.
  15. De Vries, A. 2008. Review of Florida / Georgia dairy business analysis project. 34nd Annual Southern Dairy Conference. Atlanta, GA, January 30-31.
  16. De Vries, A. 2008. Value of pregnancy and economics of breeding decisions in dairy cattle. 10th Intermountain Nutrition Conference, Salt Lake City, UT, January 29-30.
  17. De Vries, A. 2007. Economics of the voluntary waiting period and value of a pregnancy. Dairy Cattle Reproduction Council Convention, Denver, CO, November 2-3.
  18. De Vries, A. 2007. Economics of pregnancy in dairy cows. Florida Dairy Business Conference, Ocala, FL, September 10.
  19. De Vries, A. 2007. Economic value of a marginal increase in pregnancy rate in dairy cattle. Joint annual meeting, ADSA / PSA / ASAS / AMPA. San Antonio, TX, July 8-12.
  20. Feleke, S. and A. De Vries. 2007. Accuracy of prediction of future uniform milk prices in Florida from Class III and IV futures markets. Joint annual meeting, ADSA / PSA / ASAS / AMPA. San Antonio, TX, July 8-12.
  21. Feleke, S. and A. De Vries. 2007. Accuracy of prediction of future uniform milk prices in Florida from Class III and IV futures markets. Joint annual meeting, ADSA / PSA / ASAS / AMPA. San Antonio, TX, July 8-12.
  22. Ely, L., R. Giesy, B. Broaddus, C. Vann, A. Bell and A. De Vries. 2007. Financial performance of dairies in Florida and Georgia in 2005.  Joint annual meeting, ADSA / PSA / ASAS / AMPA. San Antonio, TX, July 8-12.
  23. Sanders, A. H., J. K. Shearer, L. C. Shearer, S. R. van Amstel, D. W. Webb, and A. De Vries. 2007. Incidence and interrelation of some common hoof problems in a Southeast US dairy herd. Joint annual meeting, ADSA / PSA / ASAS / AMPA. San Antonio, TX, July 8-12.
  24. De Vries, A. 2007. The economic value of reproduction in dairy cattle. Western Dairy Management Conference, Pre-conference Seminar “Improving Your Reproductive Odds”, Reno, NV. March 6.
  25. De Vries, A. 2007. Ranking cows for future profitability and breeding and culling Decisions. 42nd National DHIA Annual Meeting. St. Pete Beach, FL, February 23.
  26. De Vries, A. 2006. Economics of improved reproductive efficiency in dairy cattle. Schering-Plough Animal Health Vet-to-Vet Symposium. Las Vegas, NV, December 8.
  27. De Vries, A. 2006. How much can you afford to spend on treating a “broken” cow?  Southeast Dairy Herd Management Conference. Macon, Georgia, November 14-15.
  28. De Vries, A. 2006. Profitable dairy cow traits for future production circumstances. 57th Annual Meeting of the European Association for Animal Production, Antalya, Turkey, September 17-20.
  29. De Vries, A. 2006. Economics of (non) seasonal milk production in Florida. Florida Dairy Business Conference, Ocala, FL, September 11.
  30. De Vries, A. 2006. DairyVIP: a model to compare the economic consequences of management decisions on dairy farms. 11th International Symposium on Veterinary Epidemiology and Economics, Cairns, Australia, August 6-11.
  31. De Vries, A. 2006. Determinants of the cost of days open in dairy cattle. 11th International Symposium on Veterinary Epidemiology and Economics, Cairns, Australia, August 6-11.
  32. De Vries, A. 2006. Improved accuracy of a model to optimize breeding and replacement decisions for dairy cattle. 4th World Congress on Computers in Agriculture and Natural Resources, Orlando, Florida, USA, July 22-26.
  33. De Vries, A. 2006. Monte Carlo simulation case examples: financial analysis of dairy reproduction management decisions. Advanced Herd Management: an international short course on quantitative decision-support tools.  Department of Dairy Science. University of Wisconsin-Madison, USA, June 24-30.
  34. De Vries, A., J. Belsito, B. Butler, S. Madrid, J.A. Villagómez-Cortés, D. Bray, D. Webb, and R. Natzke. 2006. Milking-to-milking variability of somatic cell counts in a 3X-milked dairy herd and effect on ranking on DHIA hotlist. NMC 45th Annual Meeting, Tampa, Florida, USA, January 22-25.
  35. De Vries, A. 2006. Optimal breeding and replacement decisions for dairy cows when heifer supply is constrained.  American Dairy Science Association/American Society for Animal Sciences joint annual meetings, Minneapolis, MN, July 9-13.
  36. Bell, A. A., De Vries, A. and P. J. Hansen. 2006. Assessment of the economically optimal voluntary waiting period for first breeding in dairy cattle.  American Dairy Science Association/American Society for Animal Sciences joint annual meetings, Minneapolis, MN, July 9-13.
  37. De Vries, A. 2006. DairyVIP: A user-friendly computer program to compare the economic consequences of management changes on dairy farms.  American Dairy Science Association/American Society for Animal Sciences joint annual meetings, Minneapolis, MN, July 9-13.
  38. Ely, L., R. Giesy, A. De Vries, B. Broaddus, C. Vann, and A. Bell. 2006.  Financial performance of dairies in Florida and Georgia in 2004.  American Dairy Science Association/American Society for Animal Sciences joint annual meetings, Minneapolis, MN, July 9-13.
  39. De Vries, A. 2006. Ranking dairy cows for optimal breeding decisions. 43rd Florida Dairy Production Conference, Gainesville, FL, May 2.
  40. De Vries, A. 2006. Economic feasibility of digesters. Hague, FL, January 19.
  41. De Vries, A. 2006. Ranking dairy cows for future profitability and culling decisions. 3rd Annual Florida & Georgia Dairy Road Show. Okeechobee, Mayo, Chipley, FL, and Tifton, GA. February 29-March 7.
  42. De Vries, A. 2005. Relative economic importance of increasing milk production, reproduction, and productive life. Florida Dairy Business Conference, Ocala, FL, September 14.
  43. De Vries, A. 2005. A network model of dairy cow replacement under herd constraints. Joint Conference; the 5th Conference of the European Federation for Information Technology in Agriculture, Food and Environment and the 3rd World Congress on Computers in Agriculture and Natural Resources, Vila Real, Portugal, July 25-28.
  44. Villagómez-Cortés, J.A., and A. De Vries. 2005. An adjustment of the empirical Bayes prediction of milk production. American Dairy Science Association meetings, Cincinnati, OH, July 24-28
  45. De Vries, A. Jessica Belsito, Ben Butler, Sergio Madrid, Jose Alfredo Villagómez-Cortés, David Bray and Dan Webb. 2005. Variation in somatic cell counts from milking to milking in a 3X-milked Florida dairy herd. 4th IDF International Mastitis Conference, Maastricht, the Netherlands, June 12-15.
  46. De Vries, A. 2005. Economic value of pregnancy in dairy cattle. Third meeting of the International Dairy Heat Stress Consortium, Gainesville, FL, March 12-13.
  47. De Vries, A. 2005. Principles and Applications of Statistical Process Control Charts in Dairy Herd Management. Pennsylvania State University, Department of Dairy and Animal Sciences seminar, State College, PA, February 18
  48. De Vries, A. 2005. Principles and Applications of Statistical Process Control Charts in Dairy Herd Management. Pennsylvania State University, Dairy Alliance seminar “From Daily Decisions to Long-term Success”, State College, PA, February 17
  49. De Vries, A. 2005. Regional Competitiveness: A Southeast Perspective 31st Annual Southern Dairy Conference, Atlanta, GA, February 15-16.
  50. De Vries, A. 2005. What is early pregnancy diagnosis worth? 2005 Florida Dairy Road Show. Ocala, Okeechobee, Mayo, and Chipley, FL, February 7-11.
  51. De Vries, A. 2005. Conceptos economicos de la reproduction (valor de una prenes temprana) Economic concepts of reproduction (value of an early pregnancy). Conferencia Internacional Sobre el Manejo Reproductivo del Ganado Lechero (International Conference on Reproductive Management of Dairy Cattle). UF and Pfizer Animal Health International. Gainesville, FL January 27-28
  52. De Vries, A., and C. A. Risco. 2004. Pregnancy rates in natural service and artificially inseminated dairy herds.  West Florida Dairy Production Conference, Chipley, FL., November 23.
  53. De Vries, A. 2004. Economics of raising vs. purchasing heifers. Chipley, FL., November 23.
  54. De Vries, A., and C. A. Risco. 2004. Pregnancy rates in natural service and artificially inseminated dairy herds.  Professional Dairy Heifers Growers Association, Southeast Regional Meeting, Lecanto, FL., October 28.
  55. De Vries, A., Russ Giesy, Lane Ely, Brent Broaddus, Chris Vann, and Ben Butler. 2004. DBAP 2003: What we have learned about your business. Florida Dairy Business Conference, Ocala, FL, October 27.
  56. Butler, B.L., and A. De Vries. 2004. Reasons and timing of cows leaving dairy herds in Florida and Georgia. American Dairy Science Association meetings, St. Louis, MO, July 25-29, 2004
  57. De Vries, A. 2004. Economic value of pregnancy. Monsanto Dairy Business, St. Louis, MO, June 4 (conference call)
  58. Villagómez-Cortés, J.A., A. de Araujo, R. Giesy, and A. De Vries. 2004 ¿Está ganando dinero con su finca lechera?. Análisis financiero de empresas lecheras (DBAP) en Florida y Georgia (Is your dairy making money? Financial analysis of dairy businesses in Florida and Georgia). 34th Annual Florida International Agribusiness Trade Show and International Conference on Livestock in the Tropics. Kissimmee, FL, May 16-20.
  59. De Vries, A. 2004. Statistical process control charts: some theory and application. Presented to RAMS veterinary group, University of Florida College of Veterinary Medicine, April 9
  60. De Vries, A. 2004. Economic importance of improved reproductive performance. 2004 Florida Dairy Reproduction Road Show, Okeechobee, Ocala, Chipley, FL, March 2-5.
  61. De Vries, A. 2004. Trends in reproductive performance in dairy cows: what do the numbers tell us? 2004 Florida Dairy Reproduction Road Show, Okeechobee, Ocala, Chipley, FL, March 2-5.
  62. De Vries, A. 2003. Monitoring pregnancy rate with statistical process control charts. 10th International Symposium for Veterinary Epidemiology and Economics, Vina del Mar, Chile, November 17-21.
  63. De Vries, A. 2003. Economics of when to replace culled cows. Southeast Dairy Management Conference, Macon, GA, November 11-12.
  64. De Vries, A. 2003. Cost of replacing cows and its effect on profitability of dairy farms. Florida Dairy Business Conference, Ocala, FL, October 22
  65. De Vries, A. 2003. Productive life of dairy cows in Florida. Florida Dairy Production Conference, Gainesville, FL, April 30
  66. De Vries, A. 2003. Early detection of a change in pregnancy rate. American Dairy Science Association meetings, Phoenix, AZ, June 22-26, 2003
  67. Butler, B. L. and A. De Vries. 2003. Seasonality of productive life of dairy cows in Florida and Georgia. American Dairy Science Association meetings, Phoenix, AZ, June 22-26, 2003
  68. De Araujo, A.E.M. and A. De Vries. 2003. Ranking of dairy farms based on economic measures per cwt milk sold and per cwt milk equivalent. American Dairy Science Association meetings, Phoenix, AZ, June 22-26, 2003
  69. De Vries, A. 2002. Profitability of U.S. dairy farms. West Florida Dairy Conference, Chipley, FL, October 29.
  70. De Vries, A. 2002. Profitability of U.S. dairy farms. Florida Dairy Business Conference, Ocala, FL, October 9
  71. De Vries, A. 2002. What is the value of getting a cow pregnant? 39th Florida Dairy Production Conference, Gainesville, FL, May 1.
  72. De Vries, A. 2002. Economic evaluation of dairy production in the Southeastern United States. Combined meeting of the American Dairy Science Association, American Society of Animal Science, and the Canadian Society of Animal Science. Quebec City, Canada, July 21-25.
  73. De Vries, A. 2002. Optimization of dairy heifer purchasing decisions under herd constraints with a genetic algorithm. Combined meeting of the American Dairy Science Association, American Society of Animal Science, and the Canadian Society of Animal Science. Quebec City, Canada, July 21-25
  74. De Vries, A., and B. J. Conlin, 2001. Optimal days in period to detect a change in estrus detection. American Dairy Science Association meetings, Indianapolis, IN, July 24-28.
  75. De Vries, A., G. R. Steuernagel, and B. J. Conlin, 2000. Monitoring estrus detection efficiency in dairy cattle using cusum and Shewhart charts. American Dairy Science Association meetings, Baltimore, MD, July 24-28

 
 

This page was last updated on September 4, 2008
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