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Researchers find evidence of banned antibiotics in poultry products
Date:4/5/2012

In a joint study, researchers at the Johns Hopkins Bloomberg School of Public Health and Arizona State University found evidence suggesting that a class of antibiotics previously banned by the U.S. government for poultry production is still in use. Results of the study were published March 21 in Environmental Science & Technology.

The study, conducted by the Bloomberg School's Center for a Livable Future and Arizona State's Biodesign Institute, looked for drugs and other residues in feather meal, a common additive to chicken, swine, cattle and fish feed. The most important drugs found in the study were fluoroquinolonesbroad spectrum antibiotics used to treat serious bac-terial infections in people, particularly those infections that have become resistant to old-er antibiotic classes. The banned drugs were found in 8 of 12 samples of feather meal in a multstate study. The findings were a surprise to scientists because fluoroquinolone use in U.S. poultry production was banned by the U.S. Food and Drug Administration in 2005.

This is the first time investigators have examined feather meal, a byproduct of poultry production made from poultry feathers, to determine what drugs poultry may have received prior to their slaughter and sale.

The annual per capita human consumption of poultry products is approximately 100 lbs, greater than that of any other animal- or vegetable-derived protein source in the U.S. To satisfy this demand, each year, the U.S. poultry industry raises nearly 9 billion broiler chickens and 80 million turkeys, according to the U.S. Department of Agriculture. A large percentage of the fresh weight of these animals is inediblean estimated 33 percent for chickens, for exampleand is recycled for other uses, including feather meal.

The rendering industry, which converts animal byproducts into a wide range of materials, processes poultry feathers into feather meal, which is often added as a supplement to
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Contact: Chris Stevens
dcsteven@jhsph.edu
410-502-2317
Johns Hopkins University Bloomberg School of Public Health
Source:Eurekalert

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