Productivity and Economic Effects of Antibiotics Used for Growth Promotion in U.S. Pork Production

Gay Y. Miller, Kenneth A. Algozin, Paul McNamara and Eric J. Bush

Journal of Agricultural and Applied Economics, 2003, vol. 35, issue 3, 469-482

Abstract: Public health experts are concerned about the diminishing efficacy of antibiotics. Some have called for a ban on growth-promoting antibiotics in animal agriculture. This study identifies the contribution of growth-promoting antibiotics in the grower/finisher phase of U.S. pork production. With National Animal Health Monitoring System swine data, relationships are estimated between growth-promoting antibiotic use and productivity. Results indicate improvements in average daily gain (0.5%), feed conversion ratio (1.1%), and mortality rate (reduced 0.22 percentage points); these productivity improvements translate into a profitability gain of $0.59 per pig marketed, or an improvement of 9% in net profits associated with growth promotion antibiotics.

Date: 2003
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