1. Breeds that deviate too greatly from the essence of a cat or do harm to the dignity (status value) of the species are forbidden.
2. Breeds that may limit or hinder the cat's ability to thrive and live a fully realized life are forbidden. For example, the major defining traits that define a cat's life include: listening, smelling, seeing, exploring, jumping, climbing, escaping, stalking, pouncing, clawing, killing, carrying, eating, cleaning, kneading, sleeping, etc. In addition, short-legged cats are severely limited when it comes to carrying and defending their kittens.
3. Breeds with serious health issues are forbidden.
Whether naturally occurring or created by humans, cat breeds must not venture too far from the essence of a cat. The breeders tickled amusement must not insult or bring harm to the species.
This ruling also applies to dogs.
Breeding is classified in: Principles as evolution by way of artificial selection.