A bit of background before I start. I have 6 fully grown ducks of various ages and are all laying. I just ordered 10 Jersey Giant Chicks and I have some questions. I have heard about the Purina flock raiser but can I give it to these baby chicks right away? Can I give them the layer feed I give the ducks? Because they are Jersey Giants will they need calcium supplements or anything like that? Please don't think im a bad chicken owner because of these basic questions. I just really want to get it right.