Pyrenean Mastiff
Male: 70-90 kg; Female: 55-77 kg
Male: 77-81 cm; Female: 72-75 cm (Note: Dogs Australia/FCI standards prefer specimens exceeding these minimums).
10-12 years
Aragon, Spain
About the Pyrenean Mastiff
The Pyrenean Mastiff is a majestic giant of the canine world, originating from the Aragonese Pyrenees in Spain. Historically, these dogs were the ultimate guardians of the 'Mesta' (the seasonal migration of sheep), tasked with defending flocks against large predators. Despite their formidable size and power, they are known for their 'gentle giant' persona within the home, showing immense devotion and a balanced, reliable character that distinguishes them from more high-strung working breeds. Physically, they are characterized by a massive, well-proportioned frame and a thick, snow-white coat adorned with a colorful mask. They move with surprising agility and elegance for their size. As a livestock guardian breed, they are independent thinkers who are highly observant. They require a confident owner who understands the nuances of a large, protective breed and can provide the space and socialisation necessary for such a powerful animal to thrive in a modern environment.
Breed Standard
Key characteristics from the breed standard
In the ring, the Pyrenean Mastiff should exude a sense of immense power tempered by nobility. Judges look for a large, strong head with a well-defined stop and a characteristic 'sad' but intelligent expression. The movement must be powerful and fluid, covering ground with an easy stride that belies their weight. What truly sets them apart is the 'harmony of extremes'—possessing a massive bone structure and thickness of coat while maintaining a perfectly balanced, functional silhouette that never appears clumsy or lethargic.
Bred For
Livestock guardian dog protecting transhumance flocks from wolves, bears, and thieves in the Pyrenees mountains.
Temperament
Noble, brave, intelligent, and remarkably calm. While affectionate with their family, they are naturally wary of strangers and possess a firm, protective instinct without being unnecessarily aggressive.
Health Conditions Reported in the Breed
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Exercise Needs
Moderate; they require daily long walks to maintain muscle tone and mental health, but should avoid high-impact exercise, especially during their long growth period.
Grooming Needs
High; their thick double coat requires thorough brushing at least two to three times a week to prevent matting and manage shedding, with more frequent attention during seasonal 'blow outs'.
Living Suitability
Not suited for apartments or small suburban yards. They require a large, securely fenced yard or acreage where they can patrol and have room to move comfortably.
Good with Kids
Excellent with children; they are notoriously patient and gentle with 'their' kids, though their sheer size requires supervision with toddlers.
Good with Other Pets
Generally good with other dogs and household pets if raised with them, though they can be dominant with same-sex dogs if not properly socialised.
Trainability
Highly intelligent but independent; they respond best to positive reinforcement and consistent leadership rather than harsh commands.
Coat & Colours
Thick, dense, and moderately long double coat; the hair is bristly rather than woolly.. Always white with a distinct mask; patches of the same color as the mask (grey, intense golden yellow, brown, or black) are distributed across the body.
Exercise needs vary by age, fitness, health, weather and individual temperament. Consult your veterinarian for an exercise plan appropriate for your dog.
Things to Consider
Every breed has its quirks — here's what to know
Prospective owners should be aware that Pyrenean Mastiffs are predisposed to Gastric Dilatation-Volvulus (Bloat) due to their deep chests; this is a life-threatening emergency where the stomach twists, often requiring immediate surgery. They are also more likely to experience joint issues like hip and elbow dysplasia, which can be managed with weight control and appropriate exercise. Practically speaking, they are significant 'slobberers,' especially after drinking or near food—keeping a 'drool towel' handy is a way of life with this breed. Their thick double coat means they are prone to overheating in the Australian summer and require access to shade and cool surfaces. They are also vocal guardians; while they don't bark without reason, their booming bark can be disruptive to close neighbors at night. Like many giant breeds, they may also be predisposed to sensitive skin or hot spots if their thick coat isn't dried thoroughly after getting wet. While these traits are part of their unique charm, they require an owner prepared for the physical and financial commitment of a giant-sized companion.
Feeding Guide for Your Pyrenean Mastiff
Healthy Weight
55-90 kg
Daily Feeding Amount (general starting estimate)
1100-2700 grams
For a giant breed like the Pyrenean Mastiff, feeding a fresh, raw diet is highly beneficial for managing growth rates and joint health. We recommend feeding approximately 2-3% of their ideal adult body weight daily. Some owners use smaller divided meals and avoid strenuous activity immediately around feeding. These steps cannot guarantee prevention of gastric dilatation-volvulus. Seek urgent veterinary care if bloat is suspected. Focus on high-quality proteins like Majestik Beef and Kangaroo, ensuring a balanced mix of muscle meat, edible bone, and organ meat.
Feeding quantities are general starting estimates only. Individual needs vary with body condition, weight trends, age, health and activity. Ingredient percentages alone do not guarantee complete and balanced nutrition — consult a veterinarian for individualised dietary guidance.
Ingredient percentages alone do not guarantee complete and balanced nutrition. Seek veterinary or qualified canine nutrition guidance for individualised dietary advice. Raw feeding, specific proteins or fresh foods should not be presented as preventing, treating or managing breed health conditions without veterinary diagnosis and supervision.
Majestik's Recommended Feeding Approach
Breed Diet Notes
A high-quality diet rich in animal proteins and fats to support giant-breed joint health and muscle mass, ideally low in glycemic fillers to prevent rapid growth in puppies and obesity in adults.
The ideal raw diet should be centered on lean, high-quality proteins such as Majestik Kangaroo and Beef to maintain a healthy weight and support large muscle groups. Inclusion of Majestik Lamb provides essential fats for coat health. Because of their giant stature, adding natural sources of glucosamine and chondroitin (like chicken feet or green-lipped mussels) is highly recommended to support their heavy-set joints.
These are general breed-level notes only. The appropriate food and serving amount depend on the individual dog's age, health, body condition, activity and tolerance.
Majestik Recommendation
Majestik BARF meals follow our practical 70/10/10/10 approach: approximately 70% quality meat and protein ingredients, 10% edible bone, 10% vegetables and 10% offal. This gives customers a convenient fresh-food option without needing to source and portion every ingredient themselves.
Our Beef, Lamb and Roo BARF meals provide convenient fresh-food options, with suitable proteins chosen or rotated according to the individual dog.
Suitable for different needs
- Healthy adult: Majestik adult Beef, Lamb or Roo BARF meal.
- Puppy: Majestik Premium Puppy.
- Senior: Majestik Senior Blend.
- Working or highly active dog: Suitable Majestik adult meal with quantity adjusted to workload and body condition.
- Protein trial: One Majestik protein at a time.
This is a practical starting recommendation for healthy dogs. Individual needs vary with age, health, body condition and activity.
Pyrenean Mastiff Feeding Calculator
Personalised raw and cooked feeding recommendations based on your dog's profile
Ideal — Ribs palpable without excess fat. Visible waist. Abdominal tuck present.
Have a question about your Pyrenean Mastiff? Dog Health AI
Why Majestik?
Fresh, raw pet food made with integrity in South Australia
Australian Made
Made in Two Wells, South Australia
Freshly Prepared
Real meat, organs, bone & wholefood ingredients
No Fillers
No cheap fillers or artificial preservatives
Family Owned
Locally owned and operated
Local Delivery
Delivery across Adelaide & selected areas
Secure Checkout
Secure payment via Shopify checkout
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Breed Records & Facts
Average Litter Size
6-10 puppies
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References & Sources
Breed information verified against recognised breed authorities and veterinary evidence.
