I ran across this thread a long while ago when I first joined BYC and thought it was so interesting but was scared off of trying it since at the time I only had layers and this originally started as a "meatie" thing.  

  BUT I recently discovered I can get "screenings" from the elevator up the road for 20$/ton.  I know that they aren't exactly whole grains, but I was thinking that by Fermenting these, the birds may be able to utilize the actual grains a bit better and for that price, even if half of it is fluff that isn't food, I think I could still cut my food bill my 3/4.   I am slowly working my way through the pages, up to 115 of over 600 now, looking to see if someone has done something similar. 
Does anyone have experience feeding fermented " screenings"?  The ones I have seem to have mixed grains, wheat, milo, oats, corn, sunflower, along with a lot of the fluffy parts (maybe the shells) and even a bit of stalks.
Like I said, I have a whole ton of this stuff, and expect that I should be able to feed it through the winter. I have 39 chickens aging from 3 years to a month, 2 ducks and 2 geese.  They do have access to an acre+ of fenced free ranging, and when I am home, I often let them roam around the whole 15 acres.  Of course come late November we have too much snow for much "ranging" but they do go out as long as temps are above freezing.   
 Once I go through a bin of the screenings, I think I will go see about getting a bin full of oats or something else.
  I set up a 5 gallon bucket system, but think I will need another, especially come winter when I expect fermenting to slow... But by then I will also be down to about 25 chickens because we have at least 17 roosters growing up out there. 
I started my first batch of FF a couple days ago. I did 4 full scoops of screenings, half scoop flock raiser and 1 scoop scratch mix.  Fermented for 30 hours and served it up yesterday afternoon. There was not any left in the bucket so this is another reason I think we will need two buckets going until we butcher a few more of those roosters as they get to size.
Any other tips for someone new like me?     Back off to continue searching this thread for my answers.....
ETA: note to self.  Page 240.