Can anyone find some photos of chicken effected by Marek's? I can't seem to find any. I had a hen that had semi paralysis, but her eyes never turned grey or anything. Just want to compare pics.
Not all birds are effected the same. It usually starts in a leg, but can start in the wings or neck. The vaccine prevets the type of Marek's that causes paralysis. There is another type that effects the eyes. When it starts in the legs (more often the left than the right for some reason) the leg can be completely or partially parayzed. When it is completely paralyzed, the leg often sticks straight out behind or to the side, and they try to move themselves along by using their wings and the other leg.