A neurotin has been found in shark specimens which should give you
pause. (Years ago we used chicken cartilage for a ferret on vet's
recommendation, and could have used shark cartilage but felt that it
was a silly expense when I could process chicken cartilage myself.)
Through the years I have read of people giving that supplement to
ferrets.

Short quote from the ProMed write-up:
>Researchers at the University of Miami have discovered high
>concentrations of beta-N-methylamino-L-alanine (BMAA) in shark fins,
>a neurotoxin linked to neurodegenerative diseases...
>
>The findings, published in the journal Marine Drugs, suggests that
>consumption of shark fin soup and cartilage pills may pose a
>significant health risk for degenerative brain diseases.

http://www.promedmail.org/

http://www.mdpi.com/1660-3397/10/2/509/

<http://www.asianscientist.com/in-the-lab/neurotoxin-bmaa-shark-fin-alzheimers-lou-gehrig-disease-2012/>

Sukie (not a vet)

Recommended ferret health links:
http://pets.groups.yahoo.com/group/ferrethealth/
http://ferrethealth.org/archive/
http://www.miamiferret.org/
http://www.ferrethealth.msu.edu/
http://www.ferretcongress.org/
http://www.trifl.org/index.shtml
http://homepage.mac.com/sukie/sukiesferretlinks.html
all ferret topics:
http://listserv.ferretmailinglist.org/archives/ferret-search.html

"All hail the procrastinators for they shall rule the world tomorrow."
(2010, Steve Crandall)

[Posted in FML 7352]