I have a blue spangled spitzhauben cockerel who went to rood 2 night ago just fine. Yesterday morning his head was twisted all strange. He is 1 in a flock of 80 and he is the only one having problems. My flock gets an all flock grower, free choice calcium, corn and free range all day. What is the best thing to give him to help his neck? I started him on nutridrench this morning.