in search of best grain mix for sprouting

We will have 100 broilers and 100 laying hens by the end of the week and are wanting to sprout grains for them. We are new to raising chickens, so would love to find out if there are recommending feed mixes from sprouting. Thanks!

With that many chickens I'd go with whatever's cheapest, your cost can get out of hand very quickly when your feeding that many, then the time consumption is next. Shop the feed suppliers and farm coops for prices, then try 1 or 2 batches to see how well it'll work for you. As far as the feeding of sprouts themselves, I've never done it on purpose, it's to time consuming for our operation, we do feed a hot weather mix of soured oats.

I don't like to sprout mixes, they sprout unevenly and are just more work. I found it easier to sprout different things separately and mix them at feeding, especially if they have very different sizes or sprouting times. Small seeds plug the holes or fall through the big trays, big seeds aren't sprouted in time.

I used to sprout barley or wheat, whichever I can get cheapest organic. Most grain is sprayed with roundup right before harvest to make it die and dry down evenly, so non-GMO is not good enough for grains if you are worried about the sprays.

I also tried clover, radish, field peas, sunflower seeds, millet, milo, beans, mustard, and pretty much any leftover cover crop seed. They eat them all, but too expensive or PITA for the minimal additional nutrition with the exception of sunflower. In my opinion, your mileage may vary.