Mutations generally aren't good for animals. Our poor dog was bred to look cute and so had dwarfisim. He died a painful, early death. Another of our dogs has seizures and another dog that we pet-sit didn't fully form the bones in her back legs. I'm studying mutations and domestication and I find that generally the more natural the animals are bred and kept, the healthier and happier they are. Some traits are useful, such as how some chickens don't go broody. However, de-beaking is an unnatural process that is unnecessary for chickens not kept in crowded and unnatural conditions. It makes it difficult for them to feed and groom naturally. Mutations are often linked with other problems such as spinal deformities or lethal genes.
Thank you for your input though. I'm not trying to disagree with everything you say, just stating my experiences.
