I have oyster shell for them. Yes, I will feed the whole corn in moderation. Becky (The youtube channel person) gives her hens 1 cup of whole corn in the morning and one if the evening. I think she as about 11 hens.
Oyster shell is different than granite grit.
The grit is actual granite in small enough bits they can eat it. It stays in the gizzard and helps grind the food for further digestion.
Oyster shell is a calcium source to aid in keeping shells strong.
Feed stores also carry grit.
That is a LOT of corn for just 11 birds.
. Mine seem healthy but I get concerned about their food intake. It's hard to control free-rangers diets'. I'm against providing unlimited access to treats, and I don't believe in providing even more corn (since there's already so much in most feeds, and from I've heard, it's not very nutritious). But if I have their 'healthy' food always available, and they choose not to eat it, I'm not sure what to do about that, other than to try to entice them. My bucket feeder makes so they'd have to eat their way through the feed to the next layer of treats, so that helps.
