Breeding suitability guide — Yorkshire Terrier
For breeders: which tests, which thresholds, which mating rules apply
1. Core standard for parents
Tests marked “Club standard” are required by 1. Deutscher Yorkshire-Terrier-Club 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 erstellt und in der Genotypen-Datenbank hinterlegt | — | 1. Deutscher Yorkshire-Terrier-Club e.V. |
| Wesensbeurteilung | Verhaltenstest | — | — | Curated by HonestDog |
| Zahn- und Bissbewertung Club standard | 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 | 1. Deutscher Yorkshire-Terrier-Club e.V. |
| Patellar Luxation (PL) Club standard | Physical examination | PL 0–1 | Polygenic | 1. Deutscher Yorkshire-Terrier-Club e.V. |
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 | Passing result | Inheritance | Source |
|---|---|---|---|---|
| Tracheal collapse (TC) | X-ray | — | Complex | CIDD (Univ. PEI) |
| Cataract (HC) | Eye examination | clear | Complex | CIDD (Univ. PEI) |
| Keratoconjunctivitis sicca (KCS) - "dry eye" (KCS) | Eye examination | clear | Complex | CIDD (Univ. PEI) |
| Progressive Retinal Atrophy (PRA) (PRA) | — | clear or carrier | Autosomal recessive | CIDD (Univ. PEI) |
| Legg-Calvé-Perthes disease (LCPD) | X-ray | — | Complex | CIDD (Univ. PEI) |
| Patent ductus arteriosus (PDA) (PDA) | Ultrasound | normal | Polygenic | CIDD (Univ. PEI) |
| Hydrocephalus | X-ray | — | Complex | CIDD (Univ. PEI) |
| Urolithiasis | — | clear | Complex | CIDD (Univ. PEI) |
| Hyperadrenocorticism (Cushing's syndrome) (HAC) | Body-fluid analysis | clear | Complex | CIDD (Univ. PEI) |
| Portosystemic hepatic encephalopathy (PSS) | — | normal | Complex | CIDD (Univ. PEI) |
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'