The fish can't really digest it properly so no. It's not good for them so I don't bother even if it is just once.
The only real problem with chicken and turkey is the protein, and not in the fish. it can break down and cause problems with your water. this is advice from CFC and i must say my experience backes it up.
if you have a fair number of scavengers, plecs, corys, loaches, crabs, Cray or the like. i think they are more than up to dealing with and "warm blooded" food. silver dollars thrive on it. but we all do our own things.
a bit of red meat, though i don't give it, is said to be fine for larger/predatory fish.
bin looking on the net, as yet i have found only one site that states to avoid chicken and red meat, and that site sells dry and freeze dried foods, so no surprise there lol.
i will keep looking, but till that time i will follow the advice of CFC. Oh and the dozens of Cray keepers, that all have Cray in the community.
