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Cazador · 12-04-2006, 05:39 PM

Hi Ian,
Welcome to the forum. Fish are a fine diet (assuming you're feeding species that lack the thiaminase enzyme), but it's always good to give them a varied diet if you're primarily feeding fillets to ensure they get all the vitamins and minerals they need. You'll also want to add calcium powder with vitamin D to your fillets a few times per month.

Freezing won't affect the thiaminase enzyme, but heating fish over 180F for at least five minutes will destroy it. That doesn't really seem practical, though, because it will essentially cook the fish. The best thing is just to avoid feeding fish that contain thiaminase. Here's a link to a U.S. National Academy of Sciences report that lists fish with and without the enzyme. Just click anywhere on the table to get to the second page. Cheers,
Rick

http://newton.nap.edu/books/030903325X/html/64.html

12-04-2006, 05:39 PM	#6 (permalink)
Cazador Moderator Join Date: Jul 2006 Location: Alaska, USA Posts: 1,609 Country:	Re: Hi to all Hi Ian, Welcome to the forum. Fish are a fine diet (assuming you're feeding species that lack the thiaminase enzyme), but it's always good to give them a varied diet if you're primarily feeding fillets to ensure they get all the vitamins and minerals they need. You'll also want to add calcium powder with vitamin D to your fillets a few times per month. Freezing won't affect the thiaminase enzyme, but heating fish over 180F for at least five minutes will destroy it. That doesn't really seem practical, though, because it will essentially cook the fish. The best thing is just to avoid feeding fish that contain thiaminase. Here's a link to a U.S. National Academy of Sciences report that lists fish with and without the enzyme. Just click anywhere on the table to get to the second page. Cheers, Rick http://newton.nap.edu/books/030903325X/html/64.html