In Reply to: thiaminase posted by greg woodie on March 11, 2003 at 14:08:33:
i think brian macker answered the question a while ago. goldfish and rosy reds are freshwater "feeder fish." all fish contain thiaminase. some more than others (goldfish>rosy reds). once a fish is frozen the thiaminase is released from the cells and therefore, there is more thiaminase in frozen thawed feeder fish. thiaminase is an enzyme that breaks down thiamine. thiamine is necessary for neurological processes to occur (co-factor in biochemical reactions in the brain). garter snakes that are fed exclusively on feeder fish will sooner or later come down with neurological problems if the feeder fish aren't supplemented with thiamine. hope this helps.