Moers kiko boars may be right.
I don't feed hay free choice, it is 1 x a day or less, depending on how much they waste, when the pasture is lush.
When the pasture dries off and I have to feed them, 2 x a day, but it will be 2 x a day anyway, starting the last 2 months of pregnancy and they nibble in the pasture.
I start molasses grain type, 1 month prior, 1 x a day.
It is a small amount shared among them.