yeah i just saw a recipe for the fermented feed I'm getting some meat bird at the end of the year I'll try is out with them.
Feed + water + time. It's really pretty easy. And it's not rotten or moldy- that's likely the SCOBY, which is the good stuff.
Fermenting takes regular feed and turns it into a super food. More details, including pica of yeasts and molds, compiled from this thread in my next post (because I have trouble with links on mobile).