Breeding Rules Canada

Canadian Leonberger Club



As a MINIMUM requirement, all breeding stock owned by a member or non member used in your breeding program must hold:

A certificate of evaluation from the Orthopedic Foundation for Animals (OFA) for hip dysplasia and elbow dysplasia.
Hip and elbow certifications must be completed after 2 years of age.
Only dogs with Excellent, Good, or Fair should be used in a breeding program.
Breeders are strongly encouraged to post non-passing results to the OFA public database to ensure a full and complete record of all Leonberger’s results are made available.
These results will help breeders and future owners to better identify and evaluate potential issues and overall quality of breeding lines.

A certificate of evaluation from an accredited Ophthalmology institute for inherited eye disease or functional abnormalities of the eye obtained after a minimum age of one (1) year.
All results passing or failing should be released to the OFA public database.
Certification is valid for 12 months from the date of the eye exam.
It is recommended that eyes rated normal be re certified every 2-3 years. Dogs with eye abnormalities should be re-evaluated annually.

A certificate of examination from a Cardiologist or Practitioner indicating no physical signs of cardiac disease obtained after a minimum age of one (1) year.
Or an advanced exam by way of an echo-cardiogram for a certificate to state no congenital heart disease. Results should be released, pass or fail, to the OFA public database.
It is suggested that certifications are redone every 2 – 3 years.

An OFA certificate of results from a full blood panel for thyroid abnormalities.
Certificates can be obtained at one (1) year of age, but it is recommended that in the case of females, it should be after her first heat cycle.
Any dog with a TgAA result of positive should not be bred.
All results, pass or fail, including equivocal, should be released to the OFA public database.

Proof of testing for LPN1, LPN2, LPPN3 and LEMP or be designated clear by parentage, as defined by OFA, dogs that are LPN1 and/or LEMP affected (D/D) shall not be bred.
Dogs that are carriers for LPN1, LPPN3, or LEMP (D/N) can be bred to clear dogs (N/N) only.
Any dogs that are LPN2 affected (D/N or D/D) shall not be bred. All test results, clear, carrier or affected should be released to the OFA public database.

NOTE: For the future, should testing be developed for other LPN gene designations, it will automatically be included as a mandatory test requirement.




Dogs and bitches must have reached the age of two (2) years before being bred for the first time. Bitches should not be bred after the age of 8.


Dogs and bitches used for breeding should have a good temperament consistent with the Canadian Kennel Club (CKC) breed standard, be in good health,
and be both physically and emotionally sound.

In consideration of the aim of the overall improvement of the breed, the breeder should use the Orthopedic Foundation for Animals (OFA) certified test results
to ensure noted abnormalities are not duplicated in the breeding pair.

Under the guidance of your reproductive or local vet, bitches may be bred on one back-to-back heat when both breedings have produced litters.
Also in the case where the female has had a small litter they may be bred again on the next heat, not to exceed two (2) litters in any twenty four (24) month period.