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Cão de Gado Transmontano

Also called Transmontano Mastiff, Mâtin Transmontano, Mastín Transmontano

Checked 2026-09-30 · 3 sources

Gentle and even-tempered for its size, it stays alert and watchful without being aggressive.

Key facts
SizeGiant
Weight50 to 75 kg (110 to 165 lb)males 60 to 75 kg, females 50 to 60 kg12
Height68 to 85 cm (27 to 33 in)males 75 to 85 cm, females 68 to 78 cm12
CoatThick, medium-length double coat
OriginPortugal, from the mountainous Trás-os-Montes e Alto Douro region in the north-east.12
GroupFCI group 2
Provisionally recognisedBig dogs
calm, serene guardian
devoted to its flock
curious and intelligent
12

what they are likeCão de Gado Transmontano temperament

Gentle and even-tempered for its size, it stays alert and watchful without being aggressive. It thinks for itself, responds well to kind handling rather than harshness, and warms up to visitors once it has sized them up.12

how to spot oneCão de Gado Transmontano coat and colours

thick, medium-length double coat

A huge, heavy-boned mountain guardian with a square outline and a clear size difference between the sexes. Its dense, medium-length coat sits over an obvious undercoat, with shorter hair on the head, ears and legs.1

Colourswhite with black, yellow, fawn or wolf-grey patchessolid fawnsolid yellowwolf greybrindle12

a typical week and yearThe care rhythm

A typical home-care rhythm for a Cão de Gado Transmontano. A starting point, not a vet's advice.

  • Brushingevery week
  • Bathevery 8 weeks
  • Nail trimSooner if you hear clicking on the floorevery month
  • Ear checkFloppy ears trap moisture, so check and dry themevery week
  • Teeth brushingDaily brushing is idealevery 2 days
  • ExerciseDaily walks and playevery day
  • Flea, tick and worm protectionSchedule as your vet recommendsas your vet recommends
  • Vet check-upSenior years usually start around age 6every year

how busy a day looksCão de Gado Transmontano exercise needs

A roaming worker used to covering long distances over rough ground; it needs lots of space rather than structured high-speed exercise.2

the hands-on bitsCão de Gado Transmontano grooming and care

The thick coat needs regular brushing, more during seasonal shedding.1

where they are happiestCão de Gado Transmontano at home

Needs a large area and ideally a flock or property to watch over; not suited to apartments or being kept on a chain.2

who they like aroundCão de Gado Transmontano with people and other pets

Bonds strongly with the animals it guards and often works as part of a team of dogs; early training and socialising are recommended.12

where it all beganCão de Gado Transmontano history

This molosser developed in the Portuguese highlands to protect sheep and goats from Iberian wolves, moving with the flocks along seasonal grazing routes. It shares roots with the Rafeiro do Alentejo, and the two drifted apart as the long livestock migrations faded. The FCI accepted it provisionally in 2020.123

for the dinner tableFun facts

  1. 1

    It is the largest of all the Portuguese dog breeds.2

  2. 2

    Over 95 percent of these dogs are reported to work guarding sheep flocks.2

  3. 3

    Dogs of the breed have been brought to Oregon and Montana for US wildlife studies on protecting livestock from wolves.2

  4. 4

    It is known as an excellent guardian at night.2

the story behind itWhere the name comes from

The breed name 'Cão de Gado Transmontano' translates from Portuguese to 'Transmontano Cattle Dog' or 'Transmontano Livestock Dog', referring to its origin in the Trás-os-Montes region of Portugal and its traditional role as a livestock guardian.2

for your new friendName ideas

SerraMontyAltoDouroTerraPedroLoboBastoSoloGadoTrásMastin

told by a Cão de Gado TransmontanoA day in the life

I wake before the sun, stretch my giant paws, and pad softly past the sleeping sheep. The mist clings to the valley as I circle the flock, checking every shadow. A wandering cow gets a gentle nudge back to the herd. At midday, my human brings cool water and a scratch behind the ears. I sniff the wind, then settle on a grassy knoll, one eye open. When dusk paints the mountains gold, I trot home, proud and calm, knowing all is well. Another good day watching over my family.

A made-up story, just for fun. Not advice of any kind.

the official bitsRecognised by

FCI
No. 368, Group 2, Section 2.2 Molossoid, mountain type, without working trial; provisionally accepted 26 February 2020.3
Clube Português de Canicultura
Recognised by the Portuguese kennel club, which holds the breed standard.2

homemade and simpleTreats they will love

All treat recipes for dogs

Not veterinary advice. Check with your vet first if your pet has allergies, a health condition, is on a special diet or is pregnant. Treats should stay a small part of the daily food. Cut to a safe size and supervise. Terms of use

the things everyone asksOwner questions

How often should I feed my Cão de Gado Transmontano, and at what times?

Feed your adult Cão de Gado Transmontano at least two meals a day, ideally at the same times each morning and evening. Puppies need three to four smaller meals. Always follow the food label for amounts and check with your vet for a schedule that suits your dog.4 Pet Wiki plan

What should a Cão de Gado Transmontano eat, and which foods are dangerous?

Feed a high-quality large-breed dog food, following the label's guidance for portions. Keep dangerous foods away, especially grapes, raisins, chocolate, onions, garlic, and xylitol. Ask your vet for a personalised diet plan.5

How often should I bathe a Cão de Gado Transmontano?

Pet Wiki's starting plan suggests a bath every 8 weeks, and general guidance recommends at least once every three months. Bathe more often if your dog gets very dirty or spends a lot of time outdoors.6 Pet Wiki plan

How often does a Cão de Gado Transmontano need brushing?

Brush your Cão de Gado Transmontano weekly, and increase to daily during heavy shedding seasons. Pet Wiki's starting plan suggests brushing every 7 days to keep the thick coat healthy.16 Pet Wiki plan

How do I trim a Cão de Gado Transmontano's nails, and how often?

Trim nails about every four weeks, or sooner if you hear them clicking on the floor. Cut a little at a time, stopping before the quick to avoid pain. Pet Wiki's plan recommends a 28-day cycle.6 Pet Wiki plan

How much exercise does a Cão de Gado Transmontano need?

This breed needs lots of space to roam and daily walks, but not intense structured exercise. A large, secure yard is ideal. Pet Wiki's plan includes daily walks and play.2 Pet Wiki plan

How do I look after a Cão de Gado Transmontano's teeth and ears?

Brush teeth ideally daily, at least 2-3 times a week, using dog toothpaste. Check ears weekly and dry them gently, as floppy ears trap moisture. Never insert anything into the ear canal.6 Pet Wiki plan

How long does a Cão de Gado Transmontano live?

Lifespan varies by individual and care; ask your vet or a good breeder for typical expectations for this breed.

Is a Cão de Gado Transmontano good with children and other pets?

Yes, this breed is gentle and even-tempered, and good with children and other pets when properly socialised from an early age. It bonds strongly with its family and animals it guards.12

Can a Cão de Gado Transmontano be left alone?

This breed is not suited to being left alone for long periods; it thrives with a job and companionship. Provide plenty of space and activity to prevent boredom. Ask a breeder for specific advice.2

Written from the sources on this page, a few checked guides (VCA, ASPCA, RSPCA) and Pet Wiki's own starting care plan. A friendly guide, not a vet's advice.

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Sources (3)

Every fact on this page has a numbered source. Spotted an error? support@petwiki.app.

  1. FCI Standard N° 368, Cão de Gado Transmontano fci.beused for size, coat, colour, temperament, use
  2. Wikipedia: Cão de Gado Transmontano en.wikipedia.orgused for history, care, fun facts
  3. FCI nomenclature: Cão de Gado Transmontano fci.beused for recognition status and date
  4. VCA Animal Hospitals: Feeding times and frequency for your dog vcahospitals.comused for owner questions
  5. ASPCA: People foods to avoid feeding your pets aspca.orgused for owner questions
  6. ASPCA: Dog grooming tips aspca.orgused for owner questions

Checked 2026-09-30. Text is written in our own words from these sources.