tazzygirl -> RE: Are Antibiotics Making Us Fat? (12/20/2011 6:43:28 PM)
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quote:
That is a very simplistic view and a rather incorrect one. The not finishing a full course might contribute but according to recent studies it's only a small percentage of the problem, the over-prescription of antibiotics contributes much more, additionally if you prescribe it for every fart, the chance that people don't finish the full course and even if they do, that the organisms develop immunity - they adapt a good deal faster than we do, as their structure is much more simple than outs. This I agree with. For years they were prescribing antibiotics for everything, including the cold and flu. Thankfully we have moved far from that method. Something else that has happened is with the HIV virus, many diseases are also mutating at greater rates. quote:
As for wondering about the animals, I trust vets who claimed that the amount being fed to life-stock is not sufficient to prevent infections or diseases but studies have shown that small amounts of antibiotics increase the weight gain without increasing the food intake - I tent to trust them. They are vets because they studied a subject, they didn't pull theories out of their neither regions. Cats might have a "longer metabolism time" (btw what does that mean? Is their metabolism slower or faster than ours?) but the last time I checked cats weren't raised as lifestock for human consumption. When we took Binxie to the vet, he gave her a narcotic shot. According to him, cats' livers metabolize drugs more slowly than humans livers do. I wasnt questioning the amount livestock are being fed. Im sure it is happening and frequently. What I am questioning is how much is remaining after slaughter.. such a nasty word. From what I can find, about 80% is passed through quickly in urine and feces. Regardless of the route or purpose of antibiotic use, a portion of the dose will not be absorbed by the animal and will get passed in the urine or feces. The actual amount varies from compound to compound, but in some cases the amount unabsorbed is much greater than the amount absorbed. For example, an estimated 80% of a dose of ampicillin is excreted in urine or feces; in contrast, only 20% of bacitracin is unabsorbed 1 Most studies looking at excretion rates report that, in general, the excreted form is the active form of the drug 2 http://www.ces.purdue.edu/extmedia/ID/ID-348-W.pdf So, I was curious as to how long the remaining 20% rmains in the animal flesh when it hits the market. Or is the attention of this issue misdirected?
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