I just recently started fermenting and am surprised at how much they love it. At first it cut my feed down but then they ate twice as much of the dry feed that's free choice. We also got subzero weather those days too so I'm thinking they needed the food for warmth. Once the temps level out again I'll figure out how it's working for me.
Most folks just don't offer any dry feed as an alternative and it solves the problem. Until they get used to eating wet feeds they will often choose the dry over the wet, particularly on cold mornings. Mine will turn up their noses at dry feed now and will leave it until they just have to eat it...they clearly do not like dry feeds any longer. Cold day or not, they want their FF and will dig right in.