The Rex Cat Association

The Joint Rex Breed Advisory Committee

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Breeding Policy for Cornish Rex (33) 

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Breeds which have been approved for use in outcrossing are: Abyssinian, Asian Shorthair, British Shorthair, Burmese, Ocicat, Oriental Shorthair, Russian Blue, Siamese, Tonkinese. . In addition, European Shorthair are permitted in the pedigrees of imported cats. All other breeds are listed as non-approved.

Note: Cats on the Genetic Register are not suitable to use for outcrossing

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Full Register

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Cornish Rex which have within the preceding three generations only Cornish Rex. and in the fourth and Fifth generations only Cornish Rex, Cornish Rex Variants, Abyssinian, Asian Shorthair, British Shorthair, Burmese. In addition, European Shorthair are permitted in the pedigrees of imported cats. 

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Supplementary Register

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Cornish Rex which have within the preceding five generations only Cornish Rex, Cornish  Rex Variants, Abyssinian, Asian Shorthair, British Shorthair, Burmese, Ocicat, Oriental Shorthair, Russian Blue, Siamese or Tonkinese.  In addition, European Shorthair are permitted in the pedigrees of imported cats. 

(See Reference Register Note 3 for information on the possibility of a change from the Reference to Supplementary Register when a cat of good breed phenotype is an adult.)

 

Reference Register

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1. Cornish Rex Variants which have within the preceding five generations only Cornish Rex, Cornish Rex Variants, Abyssinian, Asian Shorthair, British Shorthair Burmese, Ocicat, Oriental Shorthair, Russian Blue, Siamese or Tonkinese. shall be registered on the Reference Register with a Cornish Rex Variant breed number.  In addition, European Shorthair are permitted in the pedigrees of imported cats.

2. Cornish Rex and Cornish Rex variants which have within the preceding five generations any non-approved breeds, including non-pedigree cats, shall be registered on the Reference Register.  NB When kittens with one or both parents registered on the Reference Register are, under this Registration Policy, eligible to be registered on the Supplementary Register it is recommended that the person registering these kittens requests such registration and encloses documentary evidence of the five generations required.  If this is not done the kittens may be registered on the Reference Register. 

3. Normal coated cats produced from variant x variant matings will have no breed number only colour description and will be over-stamped 'may carry the Cornish Rex gene'.  Unless proven by DNA test to carry the CRX gene. If proven by test to carry the gene they are Cornish Rex variants.

4. All cats resulting from matings between Cornish Rex and any other rex coated breed will have no breed number and will be over-stamped 'not recommended for breeding’.  Their progeny will remain permanently on the reference register’.

5. Any cats of Cornish Rex appearance, either Rex or normal coated, with Sphynx ancestry will be registered on the Reference Register and be over-stamped 'must not be used for Cornish Rex breeding'.  No progeny will ever be recognised or registered as Cornsih Rex or Cornish Rex Variants. 

6. All cats resulting from matings between Cornish Rex and any longhaired breed will be overstamped 'carries the longhair gene'. Their progeny will be overstamped 'may carry the longhair gene'. Unless a vet certified DNA test demonstrates that a cat does not carry any of the Long Hair genes.

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NOTE 1:

In accordance with GCCF Rules, Section 1, rule 1g, before the registration of any white Cornish Rex or white Cornish Rex Variant, on the active register a BAER or OAE certificate of freedom from deafness for the cat to be registered must be supplied to the GCCF. For identification purposes cats must be micro chipped prior to testing.

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NOTE 2:  All DNA samples for testing with the results to be submitted in support of registrations must be taken and certified by a vet. For identification purposes cats must be microchipped prior to testing and the number clearly shown on all documentation and the cat’s own veterinary record.

 

Note 3: In accordance with GCCF Rules, Section 1, rule 12c ii, the Cornish Rex Registration policy stipulates that cats (and their progeny) with registered parents who conform sufficiently to the breed phenotype, as defined by the Standard of Points, may be re-allocated to the Supplementary Register from the Reference Register and so be eligible for competition in GCCF shows. The opinion of at least three Full Judges of the breed would be required in support from occasions when the cat is shown as an adult in exhibition with critique classes.