I have 2 Cochin chicks that are 6 weeks old and seem very week to the point of death! there legs are stiff and wont eat or drink! They have had feed and water in with them all the time. I dont know whats going on! What can I do? I was looking and they have no meat on them they are skin and bones! just founded them like this today! I feed purina FR and CS 50/50. I have notice a little blood just yesterday in droppings! Update: I need to know the dossage to the 9.6% Corid to a gallon of water!