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


SELECTED PUBLICATIONS
1996 - present
 
REFEREED ARTICLES
  1. Bell, A., O. A. Rodríguez , L. A. de Castro e Paula, M. B. Padua, J. Hernández-Cerón, C. G. Gutiérrez, A. De Vries, and P. J. Hansen. 2008. Pregnancy success of lactating Holstein cows after a single administration of a sustained-release formulation of recombinant bovine somatotropin. BMC Veterinary Research 2008, 4:22 (26 Jun 2008)
  2. De Vries, A., M. Overton, J. Fetrow, K. Leslie, S. Eicker, and G. Rogers. 2008. Exploring the impact of sexed semen on the structure of the dairy industry. J. Dairy Sci. 91:847–856. (Reprinted from J. Dairy Sci. Copyright American Dairy Science Association, 2008. For personal use only).
  3. Rhone, J. A., R. Ward, A. De Vries, S. Koonawootrittriron, and M. A. Elzo. 2008. Comparison of two milk pricing systems and their effect on milk price and milk revenue of dairy farms in the Central region of Thailand. Tropical Animal Health and Production 40:341–348.
  4. Galindo-Gonzalez, S., J. D. Arthington, J. V. Yelich, G. R. Hansen, G. C. Lamb, and A. De Vries. 2007. Effects of cow parity on voluntary hay intake and performance responses to early calf weaning.  Livestock Science 110: 148–153.
  5. Galindo-Gonzalez, S., J. D. Arthington, S. W. Coleman, and A. De Vries. 2006. Case study: evaluation of milk production and energy partitioning in primiparous Braford heifers calving at two- or three-years of age. The Professional Animal Scientist 22:467-471.
  6. De Vries, A. 2006. Economic value of pregnancy in dairy cattle. Journal of Dairy Science 89:3876–3885. (Reprinted from J. Dairy Sci. Copyright American Dairy Science Association, 2006. For personal use only).Crane, M. B., P. Melendez, J. Bartolome, A. De Vries, C. Risco and L. F. Archbald. 2006. Association between milk production and treatment response of ovarian cysts in lactating dairy cows using the Ovsynch protocol. Theriogenology 66:1243–1248. (Reprinted from Theriogenology. For personal use only).
  7. De Vries, A., M.B. Crane, J.A. Bartolome, P. Melendez, C.A. Risco, and L.F. Archbald. Economic comparison of timed artificial insemination and exogenous progesterone as treatments for ovarian cysts.  Journal of Dairy Science 89:3028–3037. (Reprinted from J. Dairy Sci. Copyright American Dairy Science Association, 2006. For personal use only).
  8. Cabrera, V.E., A. De Vries, and P. E. Hildebrand. 2006. Prediction of nitrogen excretion in dairy farms located in north Florida: a comparison of three models. Journal of Dairy Science 89:1830-1841. (Reprinted from J. Dairy Sci. Copyright American Dairy Science Association, 2006. For personal use only).
  9. Crane, M. B., J.A. Bartolome, P. Melendez, A. De Vries, C.A. Risco, and L.F. Archbald. 2006. Comparison of synchronization of ovulation with timed insemination and exogenous progesterone as therapeutic strategies for ovarian cysts in lactating dairy cows. Theriogenology 65:1563-1574. (Reprinted from Theriogenology. For personal use only).
  10. Cabrera, V.E, P.E. Hildebrand, J.W. Jones, D. Letson, and A. De Vries. 2006. An integrated North Florida dairy farm model to reduce environmental impacts under seasonal climate variability. Agriculture, Ecosystems & Environment 113: 82-97.
  11. De Vries, A. and C.A. Risco. 2005. Trends and seasonality of reproductive performance in Florida and Georgia dairy herds from 1976 to 2002. Journal of Dairy Science 88:3155-3165. (Reprinted from J. Dairy Sci. Copyright American Dairy Science Association, 2005. For personal use only).
  12. De Vries, A. and B.J. Conlin. 2005. A comparison of the performance of statistical quality control charts in a dairy production system through stochastic simulation. Agricultural Systems 82: 317-341.
  13. De Vries, A., C. Steenholdt, and C.A. Risco. 2005. Pregnancy rates and milk production in natural service and artificially inseminated dairy herds in Florida and Georgia. Journal of Dairy Science 88:948–956 (Reprinted from J. Dairy Sci. Copyright American Dairy Science Association, 2005. For personal use only).
  14. De Araujo, A.E.M., A. De Vries, R.G. Giesy, L.O. Ely, and D.W. Webb. 2004. Ranking of dairy farms based on economic measures per CWT milk sold and per CWT milk equivalent. The Professional Animal Scientist 20:483–489.
  15. De Vries, A. 2004. Economic value of delayed replacement when cow performance is seasonal. Journal of Dairy Science 87: 2947-2958. (Reprinted from J. Dairy Sci. Copyright American Dairy Science Association, 2004. For personal use only).
  16. De Vries, A., and B.J. Conlin. 2003. Economic value of timely detection of an unexpected decrease in estrous detection. Journal of Dairy Science 86:3516-3526. (Reprinted from J. Dairy Sci. Copyright American Dairy Science Association, 2003. For personal use only).
  17. De Vries, A., and B. J. Conlin. 2003. Design and performance of statistical process control charts applied to estrus detection efficiency. Journal of Dairy Science 86:1970-1984.(Reprinted from J. Dairy Sci. Copyright American Dairy Science Association, 2003. For personal use only).

PROCEEDINGS

  1. De Vries, A. 2008. What is improved dairy cattle reproductive performance worth? Pages 145-154 in: Proceedings 13th International Congress of ANEMBE. Salamanca, Spain, May 9-10.
  2. De Vries, A. 2008. Optimal culling and breeding decisions for individual dairy cows. Pages 165-176 in: Proceedings 13th International Congress of ANEMBE. Salamanca, Spain, May 9-10.
  3. De Vries, A. 2008. Survival rates and risk factors for culling in dairy herds. Pages 255-266 in: Proceedings 13th International Congress of ANEMBE. Salamanca, Spain, May 9-10.
  4. Lima, F., A. De Vries, M.–J. Thatcher, C. A. Risco, and W. W. Thatcher. 2008. Direct comparison of natural service vs. timed AI: reproductive efficiency and economics. Pages 54-65 in: Proceedings 45th Annual Florida Dairy Production Conference. Gainesville, FL, April 29.
  5. De Vries, A. 2008. Sexed semen economics. Pages 67-82 in: Proceedings 45th Annual Florida Dairy Production Conference. Gainesville, FL, April 29.
  6. De Vries, A. 2008. Value of pregnancy and economics of breeding decisions in dairy cattle. Pages 121-135 in: Proceedings of the 10th Intermountain Nutrition Conference, Salt Lake City, UT, January 29-30.
  7. De Vries, A. 2007. Economics of the voluntary waiting period and value of a pregnancy. Pages 1-9 in: Proceedings of the Dairy Cattle Reproduction Conference, November 2-3, Denver, CO. (sponsored by Dairy Cattle Reproduction Council).
  8. Staples, C. R., B. Amaral, A. De Vries, and W. W. Thatcher. 2007. Using fat supplementation to improve the chances of pregnancy of lactating dairy cows. Pages 249-263 in: Proceedings of the 8th Western Dairy Management Conference.  March 7-9, 2007. Reno, NV.
  9. Risco, C. A., A. De Vries, and M-J. Thatcher. 2007. Application of statistical process control methods in dairy cattle production medicine. Abstract v462 in Conference Notes of the 79th Western Veterinary Conference, February 18-22, 2007. Las Vegas, NV. 8 pages.
  10. De Vries, A., D. R. Bray, and R. P. Natzke. 2007. Cow somatic cell counts really jump around. Hoard’s Dairyman. February 10. Pages 96-97. 
  11. De Vries, A. 2006. How much can you afford to spend on treating a “broken” cow? Pages 79 to 92 in: Proceedings Southeast Dairy Herd Management Conference. Macon, GA, November 14-15.
  12. De Vries, A. 2006. DairyVIP: a model to compare the economic consequences of management decisions on dairy farms. Paper 1115 in: Proceedings of the 11th International Symposium on Veterinary Epidemiology and Economics, Cairns, Australia, August 6-11.
  13. De Vries, A. 2006. Determinants of the cost of days open in dairy cattle. Paper 1114 in: Proceedings of the 11th International Symposium on Veterinary Epidemiology and Economics, Cairns, Australia, August 6-11.
  14. De Vries, A. 2006. Improved accuracy of a model to optimize breeding and replacement decisions for dairy cattle. Pages 624-629 in: Proceedings of the 4th World Congress on Computers in Agriculture and Natural Resources, Orlando, FL, July 24-26.
  15. De Vries, A. 2006. Ranking dairy cows for optimal breeding decisions.  Pages 49-66 in: Proceedings 43rd Annual Florida Dairy Production Conference, Gainesville, FL, May 2.
  16. De Vries, A. 2006. Ranking dairy cows for future profitability and culling decisions. Pages 91-109 in: Proceedings third Annual Florida & Georgia Dairy Road Show. Okeechobee, Mayo, Chipley, FL, and Tifton, GA. February 29-March 7.
  17. De Vries, A., J.E. Belsito, B.L. Butler, S.I. Madrid, J.A. Villagómez-Cortés, D.R. Bray, D.W. Webb, R.P. Natzke. 2006. Variation in somatic cell counts from milking to milking in a 3X-milked dairy herd in the summer. Pages 175-184 in: III Panamerican Congress on Mastitis Control and Milk Quality. Leon, Guanajuato, Mexico, March 27-30.
  18. 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. Pages 276-277 in: Proceedings NMC 45th Annual Meeting, Tampa, FL, January 22-25. 
  19. De Vries, A., 2005. A network model of dairy cow replacement under herd constraints. Pages 1024-1029 in: EFITA/WCCA Joint Congress on IT in Agriculture, Vila Real, Portugal, July 25-28.
  20. De Vries, A., J. Bartolome, and B. Broaddus. 2005. What is early pregnancy diagnosis worth? Proceedings 2005 Florida Dairy Road Show. Ocala, Okeechobee, Mayo, and Chipley, FL, February 7-11, pages 31-40.
  21. 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, 6 pages.
  22. Webb, D. W. and A. De Vries. 2004. Trends in reproductive performance for Southeast DHIA herds. Proceedings Southeast Dairy Management Conference, Macon, GA, November 16-17, pages 6-9.
  23. De Vries, A., R. Giesy, L. Ely, B. Broaddus, C. Vann, and B. Butler. 2004. DBAP 2003: What we have learned about your business. Proceedings Florida Dairy Business Conference, Ocala, FL, October 27, 8 pages.
  24. De Vries, A. 2004. Trends in reproductive performance in dairy cows: what do the numbers tell us? Proceedings 2004 Florida Dairy Reproduction Road Show, Okeechobee and Chipley, FL, March 2-5, pages 1-8.
  25. De Vries, A. Jessika van Leeuwen, William W. Thatcher. 2004. Economic importance of improved reproductive performance. Proceedings 2004 Florida Dairy Reproduction Road Show, Okeechobee, Ocala and Chipley, FL, March 2-5, pages 33-43.
  26. De Vries, A. 2003. Monitoring pregnancy rate with statistical process control charts. Proceedings, 10th International Symposium for Veterinary Epidemiology and Economics. Vina del Mar, Chile, November, 17-21. Available on CD-ROM (no page numbers)
  27. De Vries, A. 2003. Economics of when to replace culled cows.  Southeast Dairy Management Conference, Macon, GA., November 11, pages 31-39.
  28. De Araujo, A., A. De Vries, and R. Giesy. 2003. Dairy Business Analysis Project: 2002 preliminary financial summary. Proceedings Florida Dairy Business Conference, Ocala, FL, October 22, 4 pages.
  29. De Vries, A. 2003. Cost of replacing cows and its effect on profitability of dairy farms. Proceedings Florida Dairy Business Conference, Ocala, FL, October 22, 6 pages.
  30. De Vries, A. 2003. Productive life of dairy cows in Florida. Proceedings Florida Dairy Production Conference, Gainesville, FL, April 29-30, pages 85-92.
  31. De Vries, A., R. Giesy, and L. Ely. 2002. Profitability of U.S. dairy farms. Proceedings West Florida Dairy Conference, Chipley, FL, October 29, 5 pages.
  32. De Vries, A., R. Giesy, and L. Ely. 2002. Profitability of U.S. dairy farms. Proceedings Florida Dairy Business Conference, Ocala, FL, October 9, 5 pages.
  33. De Vries, A. 2002. What is the value of getting a cow pregnant? Proceedings Florida Dairy Production Conference, Gainesville, FL, April 30-May 1, pages 75-88.
  34. Reneau, J. K., A. De Vries, B. J. Conlin, and W. E. Marsh, 1997. Understanding variation the key to minimizing chaos on dairies. Proceedings of the 50th Anniversary Celebration of the College of Veterinary Medicine, University of Minnesota, St. Paul, MN, October 23-26, 8 pages
  35. Marsh, W. E., A. De Vries, J. K. Reneau, and M. L. Kinsel, 1997. Monitoring performance: statistical process control in dairy herd management. Proceedings of the 6th Annual Northeast Dairy Production Medicine Symposium, Syracuse, NY, April 4-6, pages 34-46. 
  36. De Vries, A., B. Conlin, J. Reneau, M. Kinsel, and W. Marsh, 1997. Some illustrations of the use of statistical process control techniques in monitoring dairy herd performance. Proceedings, 8th International Symposium for Veterinary Epidemiology and Economics. Paris, France, July 8-11. Special issue of Epidemiologie et Sante Animale 31-32:13.11.1-3.

 EDIS (University of Florida Extension Publications)

  1. Giesy, Russ, Albert De Vries, and Jay Giesy. 2008. Florida dairy farm situation and outlook 2008. EDIS Document AN200.
  2. De Vries, A., R. Giesy, L. Ely, M. Sowerby, B. Broaddus, and C. Vann. 2008. Dairy Business Analysis Project: 2006 financial summary. EDIS Document AN196.
  3. Giesy, Russ and Albert De Vries. 2007. Florida dairy farm situation and outlook 2007. EDIS Document AN180.
  4. Giesy, Russ, Lane Ely, Brent Broaddus, Chris Vann, Adriane Bell, and Albert De Vries. 2007. Dairy Business Analysis Project: 2005 financial summary. EDIS Document AN179.
  5. De Vries, Albert 2006.  The DairyVIP program to evaluate the consequences of changes in herd management and prices on dairy farms.  EDIS Document AN177.
  6. De Vries, Albert, Russ Giesy, Ann Wilkie, and Roger Nordstedt. 2006.  Spreadsheet to calculate the economic feasibility of anaerobic manure digesters on Florida dairy farms.  EDIS Document AN176.
  7. Giesy, Russ, Lane Ely, Albert De Vries, Brent Broaddus, Chris Vann, and Adriane Bell. 2006. Dairy Business Analysis Project: 2004 financial summary. EDIS Document AN161.
  8. Giesy, Russ, Albert De Vries, David Bray, and Dan Webb. 2006. Florida dairy farm situation and outlook 2006. EDIS Document AN160.
  9. Giesy, Russ, Ann Wilkie, Albert De Vries, and Roger Nordstedt. 2005. Economic feasibility of anaerobic digestion to produce electricity on Florida dairy farms. EDIS Document AN159.
  10. De Vries, Albert. 2005. Economic importance of genetic improvements in milk production, reproduction, and productive life.  EDIS Document AN158.
  11. De Vries, Albert, Jessika van Leeuwen, and William W. Thatcher. 2005. Economics of improved reproductive performance in dairy cattle. EDIS Documents AN156.
  12. Giesy, Russ, Albert De Vries, Dave Bray, and Dan Webb. 2005. Florida dairy situation and outlook 2005. EDIS Document DS179.
  13. De Vries, Albert, Russ Giesy, Lane Ely, Brent Broaddus, Chris Vann, and Ben Butler. 2005. Dairy Business Analysis Project: 2003 financial summary. EDIS Document DS178.
  14. De Vries, Albert. 2004. The Milk Income Loss Contract program for dairy producers. EDIS Document AS152.
  15. De Vries, Albert and Russ Giesy. 2004. What is the maximum worth of a dairy heifer? EDIS Document DS176.
  16. De Vries, Albert, Russ Giesy, Lane Ely,  Arthur de Araujo, Andy Andreasen, Brent Broaddus, Shep Eubanks, Doug Mayo, Pat Miller, Travis Seawright, and Chris Vann. 2004. Dairy Business Analysis Project: 2002 financial summary. EDIS Document DS177.
  17. Giesy, Russ, Albert De Vries, Calvin Covington, Richard Kilmer, Dave Bray and Dan Webb. 2004. Florida dairy farm situation and outlook 2004. EDIS Document AN147 (DS175)
  18. De Vries, Albert, Russ Giesy, Lane Ely, Arthur de Araujo, Andy Andreasen, Brent Broaddus, Shep Eubanks, Doug Mayo, Pat Miller, Travis Seawright, and Chris Vann. 2003. Dairy Business Analysis Project: financial summary for 1995-2001. EDIS Document AN144 (DS174)
  19. Giesy, Russ, Albert De Vries, Pat Miller. 2003.  The impact of new Best Management Practices on profitability of dairies in the Lake Okeechobee drainage basin. EDIS Document DS173.
  20. De Vries, Albert, Russ Giesy, Lane Ely,  Arthur de Araujo, Andy Andreasen, Brent Broaddus, Shep Eubanks, Doug Mayo, Pat Miller, Travis Seawright, and Chris Vann. 2003. Dairy Business Analysis Project: 2001 financial summary. EDIS Document AN136.
  21. Giesy, Russ, Albert De Vries, Michael Zylstra, Richard Kilmer, Dave Bray, Dan Webb. 2003. Florida dairy farm situation and outlook 2003. EDIS Document AN138.
  22. Giesy, Russ and Albert De Vries. 2003. A rationale for further herd expansion on Florida dairies. EDIS Document AN133.
  23. De Vries, Albert, Russ Giesy, Lane Ely, Dan Webb, Andy Andreasen, Brent Broaddus, Pat Miller, Travis Seawright, Chris Vann, and Arthur de Araujo. 2002. Dairy Business Analysis Project: 2000 financial summary. EDIS Document AN135.
  24. Giesy, Russ, Albert De Vries, Dave Bray. 2002. Florida dairy farm situation 2002. EDIS document AS122 (revised May 2002). EDIS Document AN103.

ABSTRACTS

  1. De Vries, A. 2008. Optimization of insemination decisions and value of pregnancy in dairy cattle. Abstract book of the 59th Annual Meeting of the European Association for Animal Production. Vilnius, Lithuania, August 24-27. Page 241.
  2. De Vries, A. and J. Olson. 2008. Survival curves and reproductive risk factors for culling in dairy herds. of Animal Science 86 (E-Suppl. 2) / Journal of Dairy Science 91 (E-Suppl. 1):256
  3. Sanders, A. H. and A. De Vries. 2008. Comparison of pregnancy diagnosis strategies by stochastic simulation. Journal of Animal Science 86 (E-Suppl. 2) / Journal of Dairy Science 91 (E-Suppl. 1):257
  4. De Vries, A. 2008. Improved accuracy of computer programs that optimize breeding and replacement decisions for dairy cattle. Journal of Animal Science 86 (E-Suppl. 2) / Journal of Dairy Science 91 (E-Suppl. 1):105
  5. Ely, L. O., A. De Vries, R. Giesy, M. Sowerby, B. Broaddus, and C. Vann. 2008. Financial performance of dairies in Florida and Georgia in 2006. Journal of Animal Science 86 (E-Suppl. 2) / Journal of Dairy Science 91 (E-Suppl. 1):23
  6. De Vries, A. 2007. Economic value of a marginal increase in pregnancy rate in dairy cattle. Journal of Animal Science 85 (Suppl. 1) / Poultry Science 86 (Suppl. 1) / Journal of Dairy Science 90 (Suppl. 1):423.
  7. Feleke, S. and A. De Vries. 2007. Accuracy of prediction of future uniform milk prices in Florida from Class III and IV futures markets. Journal of Animal Science 85 (Suppl. 1) / Poultry Science 86 (Suppl. 1) / Journal of Dairy Science 90 (Suppl. 1):603.
  8. Ely, L. O., R. Giesy, B. Broaddus, C. Vann, A. Bell, and A. De Vries. 2007. Financial performance of dairies in Florida and Georgia in 2005. Journal of Animal Science 85 (Suppl. 1) / Poultry Science 86 (Suppl. 1) / Journal of Dairy Science 90 (Suppl. 1):29
  9. 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. Journal of Animal Science 85 (Suppl. 1) / Poultry Science 86 (Suppl. 1) / Journal of Dairy Science 90 (Suppl. 1):542.
  10. Bell, A. A., P. J. Hansen, and A. De Vries. 2007. Economic analysis of bovine somatotropin to increase pregnancy rates in lactating dairy cows. Journal of Animal Science 85 (Suppl. 1) / Poultry Science 86 (Suppl. 1) / Journal of Dairy Science 90 (Suppl. 1):542.
  11. De Vries, A. 2006. Profitable dairy cow traits for future production circumstances. Page 257 in: Book of Abstracts No. 12, 57th Annual Meeting of the European Association for Animal Production, Antalya, Turkey, September 17-20.
  12. De Vries, A. 2006. Optimal breeding and replacement decisions for dairy cows when heifer supply is constrained.  Journal of Animal Science 84 (Suppl. 1)/Journal of Dairy Science 89 (Suppl. 1):136.
  13. Bell, A. A., A. De Vries and P. J. Hansen. 2006. Assessment of the economically optimal voluntary waiting period for first breeding in dairy cattle. Journal of Animal Science 84 (Suppl. 1)/Journal of Dairy Science 89 (Suppl. 1):136.
  14. De Vries, A. 2006. DairyVIP: A user-friendly computer program to compare the economic consequences of management changes on dairy farms.  Journal of Animal Science 84 (Suppl. 1)/Journal of Dairy Science 89 (Suppl. 1):186.
  15. 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. Journal of Animal Science 84 (Suppl. 1)/Journal of Dairy Science 89 (Suppl. 1):184.
  16. De Vries, A., J. Belsito, B. Butler, S. Madrid, A. Villagomez-Cortes, D. Bray, and D. Webb. 2005. Variation in somatic cell counts from milking to milking in a 3X-milked Florida dairy herd. Proceedings 4th IDF International Mastitis Conference, Maastricht, the Netherlands, June 12-15, page 875.
  17. De Vries, A., R. Giesy, L. Ely, B. Broaddus, C. Vann and B. Butler. 2005. Financial performance of dairies in Florida and Georgia in 2003. Journal of Dairy Science 88 (Suppl 1):21, Journal of Animal Science 83 (Suppl 1):21.
  18. Villagómez-Cortés, J.A., and A. De Vries. 2005. An adjustment of the empirical Bayes prediction of milk production. Journal of Dairy Science 88 (Suppl 1):46, Journal of Animal Science 83 (Suppl 1):46.
  19. Graves, W., N. Graves, P. Hansen, J. Fain, and A. De Vries. 2005. HOTCOW– An internet website for heat stress information for the International Dairy Heat Stress Consortium. Journal of Dairy Science 88 (Suppl 1):21, Journal of Animal Science 83 (Suppl 1):21.
  20. Butler, B.L., and A. De Vries. 2004. Reasons and timing of cows leaving dairy herds in Florida and Georgia. Journal of Dairy Science 87 (Suppl 1):57, Journal of Animal Science 82(Suppl 1):57.
  21. Madrid, S., T.A. Olson, and A. De Vries. 2004. Evaluation of the effects of heterosis on reproductive efficiency and milk yield in South Florida. Journal of Dairy Science 87 (Suppl 1):4, Journal of Animal Science 82(Suppl 1):4.
  22. Belsito, J., A. De Vries, and R.P .Natzke. 2004. Evaluation of the DHI hot list as a tool to reduce bulk tank somatic cell counts. Journal of Dairy Science 87 (Suppl 1):140, Journal of Animal Science 82(Suppl 1):140.
  23. De Vries, A., R. Giesy, L. O. Ely, A. de Araujo, A. Andreasen, B. Broaddus, S. Eubanks, D. Mayo, P. Miller, T. Seawright, and C. Vann. 2004. Financial performance of dairies in Florida and Georgia in 2002. Journal of Dairy Science 87 (Suppl 1):228, Journal of Animal Science 82(Suppl 1):228.
  24. Galindo-Gonzalez, S.,  J.D. Arthington, S.W. Coleman, and A. De Vries. 2004. Calving primiparous Braford heifers at two- versus three-years of age. Abstracts of the American Society of Animal Science, Southern section, Tulsa, OK, February 14-18. Journal of Animal Science 82, Suppl. 2, page 26.
  25. Butler, B. L. and A. De Vries. 2003. Seasonality of productive life of dairy cows in Florida and Georgia. Abstract 219, American Dairy Science Association meetings, Phoenix, AZ, June 22-26. Journal of Dairy Science 86, Suppl. 1, page 54.
  26. De Vries, A. 2003. Early detection of a change in pregnancy rate. Abstract 665, American Dairy Science Association meetings, Phoenix, AZ, June 22-26. Journal of Dairy Science 86, Suppl. 1, page 169.
  27. Ely, L.O., A. De Vries, and R.G. Giesy. 2003. Financial performance of dairies in Florida and Georgia in 2001. Abstract W254, American Dairy Science Association meetings, Phoenix, AZ, June 22-26. Journal of Dairy Science 86, Suppl. 1, page 358.
  28. 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. Abstract W252, American Dairy Science Association meetings, Phoenix, AZ, June 22-26. Journal of Dairy Science 86, Suppl. 1, page 358.
  29. De Vries, A., R.G. Giesy, O.P. Miller, L. Ely, T.E. Seawright, C. Vann. 2002. The Florida/Georgia dairy business analysis project. National Association of County Agricultural Agents. Proceedings 87th Annual Meeting and Professional Improvement Conference, Savannah, GA., July 28-August 1, page 118.
  30. De Vries, A. 2002. Optimization of dairy heifer purchasing decisions under herd constraints with a genetic algorithm.. Abstract 917, American Dairy Science Association meetings, Quebec City, Canada, July 21-25. Journal of Dairy Science 85, Suppl.1, page 230.
  31. De Vries, A., R.G. Giesy, and L.O. Ely. 2002. Economic evaluation of dairy production in the southeastern United States. Abstract 472, American Dairy Science Association meetings, Quebec City, Canada, July 21-25. Journal of Dairy Science 85, Suppl.1, page 118.
  32. 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. Journal of Dairy Science 84, Suppl. 1, page 253.
  33. 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. Journal of Dairy Science 83, Suppl. 1, page 229.
  34. De Vries, A. and B. J. Conlin, 2000. Comparisons of variables and statistical process control chart designs to detect a persistent change in estrus detection efficiency in dairy herds. Midwestern meetings of the American Dairy Science Association, Des Moines, IA, March 20-22. Journal of Dairy Science 83, Suppl. 1, page 1178.
  35. De Vries, A. and B. J. Conlin, 2000. Regression equations for estimating relative future profits of cows calculated from a dynamic programming model. Midwestern meetings of the American Dairy Science Association, Des Moines, IA, March 20-22. Journal of Dairy Science 83, Suppl. 1, page 1180.
  36. De Vries, A. and B. J. Conlin, 1998. Quantifying normal variation in daily milk weights and dry matter intake for statistical process control purposes. American Dairy Science Association meetings, Denver, CO, July 27-31. Journal of Dairy Science 81, Suppl. 1, page 266
  37. De Vries, A., B. J. Conlin, W. E. Marsh, and J. K. Reneau, 1997. Monitoring daily milk weights with statistical process control techniques. American Dairy Science Association meetings, Guelph, Canada, June 22-25, 1997. Journal of Dairy Science 80, Suppl. 1, page 230
  38. De Vries, A., B. J. Conlin, W. E. Marsh, J. K. Reneau, and M. L. Kinsel, 1997. Monitoring performance through statistical process control in dairy herd management. Midwestern meetings of the American Dairy Science Association, Des Moines, IA, March 17-19. Journal of Animal Science 75, Suppl. 1, page 45.
  39. De Vries, A. and B. J. Conlin, 1996. Comparison of neural net data models to estimate herd average milk. American Dairy Science Association meetings, Corvallis, OR, July 14-17. Journal of Dairy Science 79, Suppl. 1, page 202

MISCELLANEOUS

  1. Galindo-Gonzalez, S., J. Arthington, S. Coleman, and A. De Vries. 2005. Calving primiparous Braford heifers at two versus three years of age. Florida Beef Report, pages 45-46.
  2. 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, 6 pages.
  3. De Vries, A. 2004. What Is The Value Of Getting A Cow Pregnant? Monsanto Dairy Business, Dairy Online Connection, September 2004. Reprint from 2002 Florida Dairy Production Conference.
  4. De Vries, A., J. van Leeuwen, and W.W. Thatcher. 2004. Economic Importance Of Improved Reproductive Performance. Monsanto Dairy Business, Dairy Online Connection, September 2004. Reprint from Proceedings 2004 Florida Dairy Reproduction Road Show.
  5. De Vries, A. 2001. Statistical process control charts applied to dairy herd reproduction. Ph.D. thesis. University of Minnesota.
  6. De Vries, A., R. B. M. Huirne, A. A. Dijkhuizen, J. T. F. M. Geurts, and S. J. A. Dekker. 1994. Beslissingsondersteundende modellen: van onderzoek naar praktijk (decision support systems: from research to practice). Pages 161-168 in: Agro-informaticareeks 8 (June 1994).

 
 

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