The only reason I would cull it is if it couldn't get to food and water to adequately nourish itself or if it was mercilessly being attacked my the others. Neither seems to be true. It is now standing much more steadily and not leaning to the side. The leg seems to stay tucked up against the body. It is a full leg that is attached at the base of the spine. So I think it may have minimal voluntary movement. Now that it is tucked against the body, the others seem to be leaving it alone. So, so far so good.