Well they do suggest it's easier to feed train fish in warmer water at their peak metabolism.
There is also a phenomenon where feed trained fish are relocated and they seem to forget how to feed on pellets. I had this happen with some feed trained smallmouth bass that I put into a cage. They absolutely refused to have anything to do with the pellets after they were put into a cage so I fed them pieces of redworms to get them beefed up for the winter. Turns out most of the escaped through a hole in the cage, but next spring as the water warmed they were really into the pellets! Go figure.
