my chicks are 6 days old. they were perfectly well when I checked them about 1 pm. 2 hours later I found 1 with twisted neck. their feed has vitamins and minerals added. any idea what the problem is? I gave him vitamins, some sugar water for shock, later I gave him some egg yolk and honey water with little aspirin. he started to move his neck but still is very bad. I tried to put him under the broody and she rejected him. when it got dark and she went to sleep with the other 2 chicks I managed to put the sick one under her. I hope he gets better by the morning. is there anything else I can do?