Chicken soup / stock with skin - much more gelatinous?

Similar experience here! I have a houseful of abbysinians and they do not do well on straight canned food. So I crockpot plain chicken breasts (bone in, skin on) and give them the shredded meat as well. One day I needed a fast lunch so I grabbed some of the chicken and made a sandwich. Now it is no longer “Cat chicken” it’s just chicken!