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

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.


Issue Date:
Jul 24 2011
Publication Type:
Conference Paper/ Presentation
PURL Identifier:
http://purl.umn.edu/103232
Total Pages:
32




 Record created 2017-04-01, last modified 2017-08-26

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