I have literature that suggests Bass will grow when they have suitable forage available even after stopping or slowing down.
I don't have that reference in front of me at the moment but it's listed in most publications siting ref. such as Taylor & Francis.
If Bass have an empty stomach or are in a lean condition, it may be that what they need is not present. I don't believe for an instant they lose the desire to feed, that's built-in.