The breeding of Siberian cats and, with it, the neva masquerade is relatively recent. Thanks to this, until now, this breed has been protected from certain hereditary diseases. It is the responsibility of the breeders and owners to ensure that this continues to be the case. For this reason, you should only rely on professional breeders and not acquire your neva masquerade of "multipliers" that offer breed cats at economic prices because this is often achieved at the expense of animals.
Cat breeding is an expensive pastime. From the crossing of the parents of the cat, through the pregnancy and the birth to the breeding of the kittens, multiple expenses are generated that the breeder must cover with the sale price. This also includes the fees for mounts, medical care and veterinary costs (including possible tests for hereditary diseases), good nutrition, membership of some cat breeders' association, food and kitten vaccines and a long etcetera. The animal's documentation only represents a small part of the total expenses. Those who really care about the well-being of the kitten do not save on the most expensive, that is, the veterinary expenses. A responsible breeder takes his animals to the veterinarian for consultation. It also checks the kittens at the veterinarian, immunizes them against the most important infectious diseases and can show you the documentation that accredits them.