Just mixed up 190 lbs of scratch for this winter. I went heavier on corn than usual (or more like, less other stuff). I usually throw several handfuls on the coop floor each evening as a treat which doubles as them stirring the bedding. I didnt chime in earlier when deep litter came up, but I am trying it. I just keep adding a bale of wood chips on top when it gets fairly dirty, about 1x a month. seems to be working so far. its definitly not composting but it doesnt stink and the girls seem to like digging holes in it. When it gets too deep i will dump it on the garden. I hope it lasts until spring so i dont have to muck out with snow on the ground. i have several inches to go until i reach the threshold of the door, so im doing ok.
Here is my mix:
100 lbs whole corn
50 lbs whole cleaned oats
40 lbs BOSS (it was on clearance at FF, 40 lbs same price as 25 lbs. turns out to be half chaff... now i see why it was clearance)
The last time i did this same mix but also 50 lbs of whole barley. turns out the chickens dont really care for that and its $20 a bag, so i omitted it. it lasted me over 6 months last time.