Wednesday, February 20, 2013

Blog 4: Overuse of Antibiotics on Chinese Pig Farms


Antibiotic resistance is a form of drug resistance where microorganisms are able to survive, even after exposure to antibiotics. Antibiotic resistant genes pose a worldwide human health risk. With this said, “China is the world’s biggest producer and consumer of antibiotics in the world, with at least 46 percent of antibiotics being you in livestock”. Chinese researchers did a study where they analyzed manure from three commercial pig farms in China. They then, looked at the results and compared them to manure from pigs that had never been fed antibiotics and soil from a “pristine forest”, also in China. The results from this study: 149 “unique” antibiotic resistant genes were found in the commercial farm manure, which is three times more than the control samples. Therefore, the issue becomes the misuse of antibiotics in Chinese farms, which may risk being spread worldwide through not only the manure but fertilizer run-off. “The genes can be spread via microbes in manure, compost or the soil, as these enter rivers, leach into underground water, are transported by the wind or human travel, or in agricultural products such as gardening compost”. Another issue that can become of this one is if the resistance creates superbugs, which are germs that are resistant to a combination of antibiotics. The issue is trying to be resolved, but different countries are going about it different ways. For example, the European Union has banned the use of antibiotics as a growth promoter and the United States as well as Australia has been banning more classes of antibiotics. However, a global framework is still needed to ensure its effectiveness. Professor Matthew Cooper of the University of Queensland’s Institute for Molecular Bioscience, states it clearly when he says, “Animals get transported between countries, as do people. Infectious disease is no longer a national issue, it’s a global issue.”

Page Odom
2/20/13
2:56 PM

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