I bought 41 Black Rock day olds. They are now two weeks old. They have been really robust until the lamp blew overnight on Tuesday into Wednesday. On Wednesday morning one chick was almost dead and I culled it and another one died over night. I assumed they had been chilled and then trampled by the others. Then there were three that looked a bit ropey, so they are in the sick bay - well, a box with their own light, water and food, really to protect them. They are all eating and drinking, there is no scooty poo. I've also seen one of them preening and they are now cheeping normally BUT they seem to have lost control of their legs. They can walk a bit but are really wobbly. There was a 4th one this morning in danger of being trampled so she's in the sick bay as well.
It's no bother to keep them seperate and give them time to recover but anyone any idea what it is and what might have caused it?