cku certification is the international certification of the World Dog Association. International cku Certification Authorized by the World Kennel Association (FCI), the Chinese Kennel Association (CKU) certifies that dogs with pedigree certificates are purebred dogs. Purebred dogs as defined here will be chipped and authenticated. The pedigree dogs certified by CKU pay attention to the standardized breeding of the dog breed, aiming to preserve the characteristics of the dog breed, through strict artificial breeding and reasonable screening, the pedigree certificate is issued according to the pedigree information in the pedigree table, and every purebred dog is required to be injected with a chip for identity authentication, and finally form an excellent and genetically stable dog family.