Breeding suitability guide — English Toy Terrier (Black and Tan)
For breeders: which tests, which thresholds, which mating rules apply
1. Core standard for parents
Tests marked “Club standard” are required by Klub für Terrier 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 |
|---|---|---|---|---|
| Apple head | Physical examination | normal | Complex | — |
| Ectropion / Entropion | — | clear | Complex | — |
| Cataract (HC) | Eye examination | clear | Complex | — |
| Primary Open-Angle Glaucoma (POAG) | Eye examination | clear | Autosomal recessive | — |
| Progressive Retinal Atrophy (PRA) (PRA) | — | clear | Autosomal recessive | — |
| Retinal Dysplasia (RD) | Eye examination | clear | Complex | — |
| Cranioschisis | X-ray | normal | Unknown | — |
| Patellar Luxation (PL) Club standard | Physical examination | PL 0–1 | Polygenic | Klub für Terrier e.V. |
| Juvenile Dilated Cardiomyopathy (JDCM) | — | clear or carrier (carriers only with a clear partner) | Autosomal recessive | Curated by HonestDog |
2. Mating rules
When one parent has a borderline result, the other parent must meet specific criteria.
Ectropion / Entropion
See the mating rule in your club's regulation.
Cataract (HC)
See the mating rule in your club's regulation.
Primary Open-Angle Glaucoma (POAG)
See the mating rule in your club's regulation.
Progressive Retinal Atrophy (PRA) (PRA)
See the mating rule in your club's regulation.
Retinal Dysplasia (RD)
See the mating rule in your club's regulation.
Patellar Luxation (PL)
See the mating rule in your club's regulation.
Klub für Terrier e.V.3. Recommended additional tests
Sensible additions for line planning.
| Test / condition | Scoring scheme | Passing result | Inheritance | Source |
|---|---|---|---|---|
| Von Willebrand disease type I (vWD1) | — | clear or carrier | Autosomal dominant | AI-Vet |
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'