Not generally, as their processing kills the germ (the internal part of the seed that allows for germination which is how they sprout). I'm afraid I cannot give you a universal answer as there's so many types of scratch grains! Basically, you need SEEDS to sprout.
We were living in Western Washington and we didn't get a lot of sun /natural UV so we needed to push protein (which is $$$$ when you have a lot of poultry). We ended up feeding fodder, with a bit of scratch and greatly reduced our feed costs.
We sprouted a lot, and even fed our chicks a combination of medicated feed and cut up sprouts. They loved it. You don't need a fancy fodder system, you can make your own from the dollar store and a rack:
https://www.backyardchickens.com/a/creating-your-own-fodder-system
We are preparing to move and have sold off all our chickens. I miss them terribly, but am looking forward to getting setup in our new home as soon as we figure out where that is!
We have a beautiful Frizzle cockerel, readily handled and very protective of the hens. His sire was a Frizzle cockerel (on site) and a Silkie hen (also on site), hatched July 2nd. We would recommend that not be penned with other males, as he has been very much the alpha cockerel.
We live on...
Anything high in protein should be very good for egg production - you want to look for at least 18%, ideally. BOSS is exactly what you buy for wild bird food, its very cheap comparatively to what we pay for a bag of Purina Layena around here. We've gotten great egg production with our fodder...
That's not accurate, actually. You can have pet chickens, you just can't have roosters. And you have to keep the coop very clean and should animal control come around, you have to cross your fingers and tell them you don't eat the eggs. Its stupid, but that's the deal for having "exotic"...