Newfoundland dog: inherited diseases and health
The inherited conditions below have been documented in this breed in published research. That does not mean your dog has them or will get them – but it helps to know the names when you talk to a breeder or a vet.
Newfoundland dog and chocolate: how much is dangerous?
Typical adult weight: 54–68 kg. Grams of chocolate at which signs can start (20 mg/kg) and at which severe signs are reported (40 mg/kg):
| Dog weight | Milk | Dark 70–85% | Baking / unsweetened |
|---|---|---|---|
| 54 kg | 540 g signs 1080 g severe | 135 g signs 270 g severe | 77 g signs 154 g severe |
| 68 kg | 680 g signs 1360 g severe | 170 g signs 340 g severe | 97 g signs 194 g severe |
Based on published doses: signs from about 20 mg/kg, severe signs from 40 mg/kg (US FDA, Cortinovis & Caloni 2016, Swedish Poison Information Centre). An estimate, not a diagnosis.
Inherited conditions documented in the breed
Conditions documented: 14
A gene variant is known for 4 of the conditions below, so a DNA test may exist. Ask your vet or the breed club.
| Condition | Body system | Inheritance | Gene variant known |
|---|---|---|---|
| Aortic Stenosis[2] | – | – | – |
| Cardiomyopathy, dilated[1] | Cardiovascular system | Multifactorial | No |
| Ciliary dyskinesia, primary, generic[1] | Respiratory system | – | No |
| Cranial Cruciate Ligament Rupture[2] | – | – | – |
| Cystinuria and Urolithiasis[2] | – | – | – |
| Cystinuria, type I - A[1] | Renal / urinary system | Autosomal recessive | Yes |
| Degenerative myelopathy[1] | Nervous system | Autosomal recessive | Yes |
| Dilated Cardiomyopathy (DCM)[2] | – | – | – |
| Haemophilia B[1] | Haematopoietic system | X-linked recessive | Yes |
| Megaoesophagus, generic[1] | Digestive / alimentary | – | – |
| Myoclonus epilepsy of Lafora[1] | Behaviour / neurological | Autosomal recessive | Yes |
| Osteochondritis dissecans[1] | Skeleton (incl. short stature & teeth) | Multifactorial | No |
| Rupture of the cranial cruciate ligament, predisposition to[1] | Skeleton (incl. short stature & teeth) | Multifactorial | No |
| Subaortic stenosis[1] | Cardiovascular system | Autosomal recessive | No |
What this list means
- “Documented in the breed” means at least one published case or study – it says nothing about how common the condition is.
- Many of these conditions are rare. A responsible breeder can tell you which health tests the parents have had.
- Where the gene variant is known, a DNA test may exist – ask your vet or the breed club.
- If your pet shows signs of illness, contact your vet. This page cannot tell you whether your pet is ill.
About the breed
- Height
- 66–71 cm
- Weight
- 54–68 kg
- FCI number
- 050
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Sources
How this page was made: the list is taken directly from the sources below; nothing on it was written by AI. Names of conditions may be machine-translated. It is information, not a diagnosis. How we write our pages