Hi, welcome to BYC!
Since the grass is gone... maybe work on building up "deep litter". I aim to make my run like the forest floor. Thick with leaves, pine needles, old shavings, hay, grass clippings... It invites bugs and good bacteria to balance things instead of a disease inviting barren ground covered in feces that stinks to high heaven. I pick up the extra poos I see, but even those who don't do not experience the same kind of stink as bare ground especially when it rains. I now dump at least a couple bags of clippings every time I mow. The chickens like to scratch through it and pick out goodies, including the bugs. Don't forget chickens are omnivores and like to eat meat!
I LOVE sprouting barley fodder (or even just sprouts) I bought feed grade non pearled from the feed store. Planting grade can have chemicals. A 50# bag was about $18 US. It really is more about enrichment than nutrients. Barley is said to be the easiest with the least amount of mold or other issues. You can even do oats, sunflower seeds, black oil sunflower seeds, millet, corn, peas, oats, and yes wheat (white, winter, red, hard). Anything that will sprout. Not all nutrient values are equal for example corn only has about 7% protein where as wheat has about 14% and peas 22%. And something like BOSS is going to be a lot higher in fat. Anything that hasn't been heat processed, cracked, or ground. It really isn't much work at all. I simply set a jar next to the sink, soak one night and rinse a couple times a day when I am there washing my hands anyways. Sometimes I feed out at sprout stage (day 4) instead of fodder since nutrient value isn't much different, and savings stated by most (or the weight increase of 7 X), it's true I see about 7 times the weight in the same amount of days BUT that is water weight and dry matter is what equals the nutrients according to studies I have read.
I like my birds to have green and they like it as well. But if you are feeding a formulated ration, green isn't required. It is a bonus.
Some people will set up a little wire covered frame that keeps the chickens from scratching and eating away down to the roots and dirt. So the chooks get to pluck the fresh tops that grow through while preserving the plant itself. That might be an option for you, if free ranging isn't.
Hope you enjoy your adventure!
