| Size at withers | 60–75 cm |
|---|---|
| Weight range | 41–75 kg |
| Life expectancy | 9–11 years |
| Size class | Giant (> 40 kg) |
| Normal resting vitals | Heart rate 60–100 bpm · Respiration 10–30/min · Temperature 38.3–39.2 °C |
| Temperament | Loyal, protective, wary of strangers ('ojeriza' — instinctive guardian trait); requires expert handling |
| Common health issues | Hip and elbow dysplasia; gastric torsion; hypothyroidism |
| Exercise needs | High |
| Climate & housing suitability | Moderately adaptable; needs a committed handler regardless of climate. |
| Owner notes | Originating in Brazil; banned or restricted in several countries and not a beginner's breed. |
Origin and purpose
Working (FCI). Origin: Brazil.
Originating in Brazil; banned or restricted in several countries and not a beginner's breed.
What a breed was built to do explains most of what it will do in your home. A dog selected for hundreds of years to run, guard, herd, or hunt does not stop wanting to because it now lives in an apartment — the drive is the breed, and the owner's job is to give it somewhere to go.
Temperament and training
Stated temperament: Loyal, protective, wary of strangers ('ojeriza' — instinctive guardian trait); requires expert handling
A guarding breed: it is naturally suspicious of strangers, and that is what it was bred for. Early, broad, positive socialisation — many people, many places, many situations, before sixteen weeks — is not optional for this breed; it is the difference between a discriminating guardian and a dangerous liability. A guarding dog that has not been socialised is a problem you have created, not a temperament you have discovered.
Conditions this breed is predisposed to
Gastric dilatation and volvulus (GDV, 'bloat')
Elbow dysplasia
Hypothyroidism
Health screening — what to test, and when
| Screen for | Test | When |
|---|---|---|
| Elbow dysplasia | Radiographic elbow evaluation | Once at 12–24 months |
| Gastric dilatation and volvulus (GDV, 'bloat') | No screening test. Discuss preventive gastropexy with your vet in deep-chested breeds | At neutering, if the vet agrees it is indicated |
| Hypothyroidism | Thyroid blood panel | On unexplained weight gain, coat loss, or lethargy; annually in predisposed breeds |
Every dog, every breed: an annual health examination (twice yearly from seven years), body-condition scoring at each visit, dental assessment, year-round parasite control, and the core vaccinations.
For breeders — test before you mate
- Elbow dysplasia — Radiographic elbow evaluation
- Gastric dilatation and volvulus (GDV, 'bloat') — No screening test. Discuss preventive gastropexy with your vet in deep-chested breeds
- Hypothyroidism — Thyroid blood panel
Feeding
Slow, controlled growth is essential — giant-breed puppies grow for eighteen months or more, and pushing that growth with over-feeding or calcium supplementation causes lasting orthopaedic damage. Use a diet formulated for large- or giant-breed growth and keep the puppy visibly lean. As an adult, two measured meals a day, never one large one. Feeding costs are substantial and should be budgeted before acquiring the dog.
Exercise and enrichment
Stated requirement: High
A high-energy dog needing substantial, committed daily exercise plus mental work. Do not take this breed on unless the daily commitment is realistic on your worst week, not your best one.
Climate and living conditions
Stated suitability: Moderately adaptable; needs a committed handler regardless of climate.
Ageing and senior care
Life expectancy: 9–11 years. This dog is a senior from around 5–6 years, at which point wellness examinations should move to twice a year and senior blood and urine screening begins. Giant breeds age fast and live short lives, and this is the hardest fact about owning one. Senior screening should start early, orthopaedic support matters from middle age, and cardiac and bone cancer risks are real. Go in with your eyes open. Senior care →
Before you take one home
- Ask the breeder for the health-test results listed above — for BOTH parents, on paper, before you pay a deposit. A breeder who has done the tests will be proud to show you; one who deflects, or who tells you the tests are unnecessary in this line, is telling you what you need to know.
- This is a short-skulled breed. Choose the puppy with the most open nostrils and the longest muzzle you can find, and reject any that snores, snorts, or struggles for breath at rest — those are not endearing breed traits, they are signs of a dog that cannot breathe properly. Ask whether the parents have been BOAS-graded. In a hot climate this decision has consequences you will live with daily.
- Consider adoption. Shelters and rescues have dogs of every kind, including purebreds, and the local native or landrace dog is often healthier, better adapted to its climate, and more in need of a home than almost anything you can buy. See Part XII.
