Cat father and cat daughter are animals that are directly related by blood, and their genes are very similar. If a cat father and his cat daughter mate, the offspring will most likely suffer from a family recessive genetic disease.
And the offspring produced by this kind of inbreeding have a higher probability of stillbirth, deformed fetuses, and miscarriage. Therefore, it is not recommended that cat fathers and cat daughters breed. If you want to breed a cat, it is best to find a cat of the opposite sex that is not related by blood or of the same race.