I gave my chicks sand and it helped with the runs. It is like baby grit. I originally planned on switching to crushed oyster shells but my girls are laying wonderful eggs so I stuck with the sand. Sorry for your loss. I almost lost my rooster bringing them home the trip was hard on him, but he pulled through. Traveling is very hard on the babies. I'm sorry for your loss.
I've read that calcium (layer feed, oyster shells) causes liver issues in chicks, even Roos if they eat too much (layer). Some feed Flock Raiser, All Flock, Multi Purpose feed to their flock, young & old, grit & Oyster Shells in separate dishes. Layers eat the OS as need, I've switched from Layer to FR w/ OS on the side & my shells are nice & firm.
I get 4 eggs from my 4BOs most days, a day or two I may get 3 but they've been laying since Oct. I expected a slow down this Winter, wish they'd take a break, don't want them wearing themselves down.
