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Sub-therapeutic Antibiotics and Impacts on U.S. Hog Farms

Author

Listed:
  • McBride, William D.
  • Key, Nigel D.
  • Mathews, Kenneth H., Jr.

Abstract

Antimicrobial drugs are fed to hogs at sub-therapeutic levels to prevent disease and promote growth. However, there is concern that the presence of antimicrobial drugs in hog feed is a factor promoting the development of antimicrobial drug-resistant bacteria. This study describes the extent to which antibiotics are used in hog production and how this changed between 2004 and 2009. This study also uses a sample-selection model to examine the impact that use has on the productivity of U.S. hog operations. Using hog producer data from 2004, the analysis did not find a relationship between productivity and sub-therapeutic antibiotics fed during finishing, but productivity was significantly improved when fed to nursery pigs. These results are being evaluated using similar data from 2009.

Suggested Citation

  • McBride, William D. & Key, Nigel D. & Mathews, Kenneth H., Jr., 2011. "Sub-therapeutic Antibiotics and Impacts on U.S. Hog Farms," 2011 Annual Meeting, July 24-26, 2011, Pittsburgh, Pennsylvania 103232, Agricultural and Applied Economics Association.
  • Handle: RePEc:ags:aaea11:103232
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    File URL: http://purl.umn.edu/103232
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    Keywords

    antibiotics; hogs; sample selection; Farm Management; Production Economics;

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