Scratch is considered a treat. Thet need a feed with around 18 to 20% protein.the previous owners only threw out scratch and let them free-range. But i switched to laying crumbles thinking it was more nutritious and easily digested. Should i be giving them both?
I use Kalmbach Flock Maintaner 18%. ( I buy mine from Chewy and its very reasonable. )
You will need to keep a bowl of oyster shell (seperate not mixed in their feed) so they have it as needed. And a bowl of grit also.