My understanding is it doesn't increase the existing protein, it increases how well the birds can absorb said protein by a few percent. So a 16% feed they really absorb only like 14%, but with FF they absorb all of it.
You can usually figure that the protein in a FF is a few percent higher for all intensive purposes than a dry feed. So my fermented 20% flock raiser is probably closer to a 22% unfermented feed in the case of how much nutrients they absorb.
In other news, it's raining for the first time since putting the chicks out. I covers their tractors with tarps and they seem to be doing OK (out and about under the tarps) but I worry about the wet ground. I can move them into the brooder if all else fails but they're pretty well feathered right now... I think so long as the sky clears up by 4 or so they should be fine.
If they are absorbing more protein then why would their stools be so runny ? I'm Confused as to why they continue to have loose/runny droppings if they are absorbing more protein with the FF and I have greatly reduced the amount of moisture in the FF. I was hoping by now that their stools would be back to the way they were when I had them on dry feed.