Breeding suitability guide — Leonberger
For breeders: which tests, which thresholds, which mating rules apply
1. Core standard for parents
Tests marked “Club standard” are required by Deutscher Club für Leonberger Hunde e.V. for breeding approval — they must be on file for every breeding animal. The others are part of the recommended health standard and should be on file as well.
| Test / condition | Scoring scheme | Passing result | Inheritance | Source |
|---|---|---|---|---|
| DNA-Identitätsnachweis Club standard | Blutprobe (DNA-Profil) | DNA-Profil liegt vor | — | Deutscher Club für Leonberger Hunde e.V. |
| Wesensbeurteilung Club standard | Verhaltenstest | Gültige Körung | — | Deutscher Club für Leonberger Hunde e.V. |
| Zahn- und Bissbewertung Club standard | Gebissbescheinigung | Vollständiges Gebiss (bei M3-Verlust muss der Partner vollzähnig sein) | Unknown | Deutscher Club für Leonberger Hunde e.V. |
| Laryngeal Paralysis (LP) Club standard | X-ray | clear or carrier (carriers only with a clear partner) | Complex | Deutscher Club für Leonberger Hunde e.V. |
| Eye conditions (ophthalmological eye exam) (ECVO) Club standard | Eye examination | clear | Complex | Deutscher Club für Leonberger Hunde e.V. |
| Elbow Dysplasia (ED) Club standard | X-ray | ED 0–1 | Polygenic | Deutscher Club für Leonberger Hunde e.V. |
| Hip dysplasia (HD) Club standard | X-ray | HD A–B | Polygenic | Deutscher Club für Leonberger Hunde e.V. |
| Laryngeal paralysis and polyneuropathy, CNTNAP1-related (LPPN3) Club standard | DNA test | clear or carrier (carriers only with a clear partner) | Autosomal recessive | Deutscher Club für Leonberger Hunde e.V. |
| Leukoencephalomyelopathy (LEMP) (LEMP) Club standard | DNA test | clear or carrier (carriers only with a clear partner) | Autosomal recessive | Deutscher Club für Leonberger Hunde e.V. |
| Polyneuropathy 1 (Leonberger, Saint Bernard) (LPN1) Club standard | DNA test | clear or carrier (carriers only with a clear partner) | Autosomal recessive | Deutscher Club für Leonberger Hunde e.V. |
| Polyneuropathy 2 (Leonberger) (LPN2) Club standard | DNA test | clear | Autosomal dominant | Deutscher Club für Leonberger Hunde e.V. |
| Hypothyroidism | Body-fluid analysis | normal | Complex | Curated by HonestDog |
2. Mating rules
When one parent has a borderline result, the other parent must meet specific criteria.
Elbow Dysplasia (ED)
See the mating rule in your club's regulation.
Deutscher Club für Leonberger Hunde e.V.Hip dysplasia (HD)
See the mating rule in your club's regulation.
Deutscher Club für Leonberger Hunde e.V.Laryngeal paralysis and polyneuropathy, CNTNAP1-related (LPPN3)
See the mating rule in your club's regulation.
Deutscher Club für Leonberger Hunde e.V.Leukoencephalomyelopathy (LEMP) (LEMP)
See the mating rule in your club's regulation.
Deutscher Club für Leonberger Hunde e.V.Polyneuropathy 1 (Leonberger, Saint Bernard) (LPN1)
See the mating rule in your club's regulation.
Deutscher Club für Leonberger Hunde e.V.Polyneuropathy 2 (Leonberger) (LPN2)
See the mating rule in your club's regulation.
Deutscher Club für Leonberger Hunde e.V.3. Recommended additional tests
Sensible additions for line planning.
| Test / condition | Scoring scheme | Passing result | Inheritance | Source |
|---|---|---|---|---|
| Dilated cardiomyopathy (DCM) | Ultrasound | normal | Complex | Curated by HonestDog |
4. HonestDog verification
- Upload a legible certificate (PDF or photo) per test in the breeder dashboard
- Certificate must show date, examining vet, and FCI/VDH logo
- Certificates older than 36 months are flagged as stale
- We extract the results from each upload using AI and check them for consistency with the dog's profile — the profile tile then shows 'verified'