From:
"Daniel E. McLain"
Date: 2007-12-07 15:22:42 UTC
Subject: Re: [ferrethealth] OT: chips in pets and humans unsafe says article
To: <ferrethealth@yahoogroups.com>
I'll second Dr. Karen's opinion, and extend it. During my days of
FDA-mandated rodent (i.e., rat and mouse) carcinogenicity testing of a vast
array of healthcare products ID chips were important for study data
integrity (to avoid animal mix-ups). While it would at first seem expensive
to use a chip in a laboratory mouse appreciate that the animals $20 cost at
the beginning of a 2-year study grows to thousands by the end (because of
animal care costs, and the inherent value of the information from a single
animal). Importantly, these ID chip implant sites were always included in
the histopathology analysis and there has never been, in my personal
experience, an issue about adverse effects (other than device encapsulation,
which is a normal physiological response). Moreover, I have never seen my
specific discipline's scientific trade journals report on adverse effects
and if they did (given what I said above about the eventual value of the
mouse) they wouldn't still be used (and literally millions have been used).
For the pet industry, the value of "chipping" is a personal determination,
but collars and tags do fall off and ferrets in particular seem to enjoy the
challenge of removing those toys. I don't have the pleasure of owning a pet
ferret now (or the ferret owning me, as was always my case) but if I did I
would have no reservations about chipping.
Also an opinion,
Dr. Dan MS/PhD, DABFE, CNS
From: ferrethealth@yahoogroups.com [mailto:ferrethealth@yahoogroups.com] On
Behalf Of Karen Purcell
Sent: Friday, December 07, 2007 8:43 AM
To: ferrethealth@yahoogroups.com
Folks,
Just my 0.02 on this subject. Millions of chips have been implanted in dogs,
cats, ferrets, livestock, etc in the past 10 years +. I have seen 3
documented cases of cancer at the injection site of the chip in dogs in my
various veterinary journals. Until I see evidence that is more condemning, I
see no medical reason to stop placing chips. BTW, all my pets are chipped
for identification purposes (crazy gate-opening dogs!)
Like I said, just my opinion,
Dr. Karen
aka Karen Purcell DVM
Londonderry, NH
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