Breeding suitability guide — Yorkshire Terrier
For breeders: which tests, which thresholds, which mating rules apply
1. Mandatory tests for parents
These tests must be on file for every breeding animal.
| Test / condition | Scoring scheme | Approved from | Inheritance | Source |
|---|---|---|---|---|
| DNA-Identitätsnachweis | Blutprobe (DNA-Profil) | DNA-Profil erstellt und in der Genotypen-Datenbank hinterlegt | — | VDH |
| Zahn- und Bissbewertung | Gebissbescheinigung | Kein Vorbiss, Rückbiss oder Kreuzbiss; kein erheblicher Zahnverlust (Fehlen von Canini, P4/Oberkiefer, M1/Unterkiefer oder mehr als zwei anderen Zähnen; mindestens 5 Schneidezähne) | Unknown | VDH |
| Patellar Luxation (PL) | Physisch | Grad 1 or better | Polygenic | VDH |
| Wesensbeurteilung | Verhaltenstest | Bestandene Verhaltens-/Wesensbeurteilung im Rahmen der Ankörung | — | VDH |
2. Mating rules
When one parent has a borderline result, the other parent must meet specific criteria.
We currently have no structured mating rules for this breed. Please consult your club's regulation.
3. Recommended additional tests
Sensible additions for line planning.
| Test / condition | Scoring scheme | Approved from | Inheritance | Source |
|---|---|---|---|---|
| Tracheal collapse (TC) | Roentgen | A | Complex | CIDD |
| Keratoconjunctivitis sicca (KCS) - "dry eye" (KCS) | Augen | CLEAR | Complex | CIDD |
| Progressive Retinal Atrophy (PRA) (PRA) | — | CARRIER | Autosomal recessive | CIDD |
| Cataract (HC) | Augen | CLEAR | Complex | CIDD |
| Legg-Calvé-Perthes disease (LCPD) | Roentgen | A | Complex | CIDD |
| Patent ductus arteriosus (PDA) (PDA) | Ultraschall | NORMAL | Polygenic | CIDD |
| Hyperadrenocorticism (Cushing's syndrome) (HAC) | Koerperfluessigkeiten | CLEAR | Complex | CIDD |
| Hydrocephalus | Roentgen | A | Complex | CIDD |
| Urolithiasis | — | CLEAR | Complex | CIDD |
| Portosystemic hepatic encephalopathy (PSS) | — | NORMAL | Complex | CIDD |
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 check each upload for authenticity — the profile tile then shows 'verified'