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Conventional poultry farms use antibiotics extensively, which contributes to the rise of antibiotic-resistant pathogens. But farms that turn to organic practices, including a ban on antibiotics, can greatly reduce antibiotic-resistant bacteria within only the first year of the change. That’s according to a new study in the journal Environmental Health Perspectives. [Amy Sapkota et al., "Lower Prevalance of Antibiotic-resistant Enterococci on U.S. Conventional Poultry Farms that Transitioned to Organic Practices"]
The scientists studied 10 conventional poultry farms and 10 large-scale newly organic poultry farms. They tested for the presence of enterecocci, microorganisms commonly found in both conventional and organic poultry farms. And they compared the bacteria’s resistance to 17 antimicrobials. The researchers say they were surprised at how quick and precipitous was the fall in resistance.
Take Enterococcus faecalis: on the conventional farms, 67 percent were resistant to the antibiotic erythromycin, while only 18 percent were on the newly organic farms. And 42 percent of the same pathogen had a multidrug resistance on conventional farms, but that number dropped to 10 percent on the organic ones. The researchers expect drug-resistant bacteria levels to drop even further the longer a farm remains organic. Because if you’re going to count chickens, it’s a good idea to count bacteria too.
—Cynthia Graber
[The above text is a transcript of this podcast.]
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4 Comments
Add CommentHow long will it take for the poultry industry to introduce a counter-science rebuttal to this post? My bet is it's already being written.
Reply | Report Abuse | Link to thisI predict that "Big Poultry" will convert quickly as more small operations demonstrate the safety of not using antibiotics. They're not wedded to using antibiotics, they're wedded to making a profit. They only took up the practice of massive antibiotic application in the first place because of the prevailing wisdom warning of disease running through any monoculture crop (in their case, farmed birds) like wildfire. That would lead at best to disposal, cleanup, and replacement costs- at worst, to consumer lawsuits. IOW, loss of profit.
Reply | Report Abuse | Link to thisAs evidence accumulates showing that "wisdom" to be false, Tyson et al will be increasingly desirous of being rid of the ongoing expense of antibiotics, which cuts into profits. Big Pharma won't like it, but their idled production capacity can be subsidized to making human "orphan" drugs (at a profit).
Not to be cynical or anything.
Very reasoned response. Maybe I named the wrong industry in predicting a counter-scientific rebuttal.
Reply | Report Abuse | Link to this@henryde: "How long will it take for the poultry industry to introduce a counter-science rebuttal to this post?"
Reply | Report Abuse | Link to thisThe man on the grassy knoll is working on it.