Good grief..Seriously it's not a big deal. I raise many Birds without issues here. Many chicks started with Broody hens.
We all do things differently...
I'm sorry and not contradicting you at all but electrolytes are not needed because hard on the heart due to the salt content. With Chickens..Less is more beneficial...
No more oats...Buy some scratch grains to give on occasion. Mine like cucumbers, Apple, cooked spaghetti squash, broccoli, Peas etc. Only twice a week in small amounts.