-----Original Message-----
From: MICROTRACE@aol.com [mailto:MICROTRACE@aol.com]
Sent: Tuesday, April 02, 2002 11:29 AM
To: ken.hilderbrand@hmsc.orst.edu
Subject: Re: Anitibiotics
Dear Tsuyako;
The FDA does not permit chloramphenicol for use in feeds at leeast for
animals for human consumption to the best of my knowledge. It does permit
clenbuterol for certain non-food animals. Sulfamethazine and sulfathiazole
are both permitted in swine diets and I believe sulfa drugs are also
permitted in certain beef diets- I know they are in Canada.
In 1979, the USDA found more than 15% of the samples of pork tested for
sulfamethazine had violative reesidues- above 0.1 ppm. I believe the
Japanese
tolerance is 0.05 ppm. In 1986, the USDA found more than 6% of the samplees
teested and Japan banned USA pork exports and the price of pork in the USA
went down. The National Pork Producers advised their 120,000 members not to
use the drug.
I believe residue violation rates are now below 1% but you should be able to
get this information from USDA.
Te US-FDA does not even require 80% of the feedmills mixing drugs in feeds
to
be registered with it. It has no mixer or contamination testing requirements
and such requirements when proposed have been consistently opposed by the
AFIA (American Feed Industry Association). Someday due to international
pressure from Japan and the EU, this maybe will change.
My associated company manufactures analytical tracers for use in controlling
drugs in feeds (ref. website: www.microtracers.com) and my lab analyzes
foods
for drug reesidues.
Can you identify if you are with a Japanese governmeent agency? as I would
like to visit Japan and meet with MAFF.
Thank you, please reespond by email.
David Eisenberg
President- Micro-Tracers,Inc. and Chairman Anresco,Inc. (website:
www.anresco.com)
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