Pyrenean Mastiff vs Jack Russell Terrier - Breed Comparison

The Pyrenean Mastiff originates from Spain, descending from ancient livestock guardian-type dogs.

They have always been used as guardians, looking out for livestock and warding off predators.

When you do research you find that there is little information on the exact origins of the dog. It was only in recent years that the dog was taken out of its native region and sent to the USA, but it isn’t recognized by the AKC.

The dog was however recognized by the FCI in 1982.

The popular Jack Russell Terrier was developed in Devonshire in the south of England in the late 1800's so as to hunt foxes.

Often believed to be the Parson Russell Terrier, the Jack Russell Terrier was developed by Parson John Russell. This is where the dog gets his breed name from. Some people get the Jack Russell Terrier a little bit mixed up with the Parson Russell terrier, when it fact its actually a different breed, but sharing a common ancestry.

The Jack Russell Terrier is smaller than the Parson and bigger than the Russell Terrier. The breed became known in the U.S. by the 1930s and the Jack Russell Terrier Association of America wanted recognition by the American Kennel Club, which was granted in 2000.

This is a beautiful big dog, strong and muscular. He stands at between 75 and 82cm in height and weighs between 70 and 100kg, males and females.

He has a thick double coat which is fairly long and which also sheds regularly. The coat is essentially white in color with large markings of reddish brown, tan, grey or black.

The Pyrenean Mastiff has a large head with a black nose, small, dark eyes, floppy, medium sized ears and a long tail with lush hair growth.

Temperament:

Large he may be, but the Pyrenean Mastiff is a docile dog that gets on well with children as well as with other pets. He is intelligent but also strong willed and independent, making him a little bit difficult to handle if he chooses to ignore your commands.

Training and socialization will be required if you want him to be obedient and well mannered. He can do well with you as a novice pet owner, so long as you are firm, consistent, kind, patient and fair in your handling of the Pyrenean Mastiff.

Even with socialization, he tends to be wary around strangers and becomes quite protective around his human family.

He is a calm dog that doesn’t require a whole lot of exercise, but he isn’t suited to life on a small property in the city as he needs a lot of space to feel content and at ease.

The Jack Russell Terrier is a small dog that weighs between 6 and 8kg and stands at between 25 – 38cm. The body length of the dog should be in proportion to the height.

He is essentially a white dog with orange or fawn colored patches. The coat is mostly smooth and short, but the coat can also be longer and rough or it can be broken which is a combination of rough and smooth. Regardless of coat type, they are dense, double coats which will require brushing at least twice a week to remove loose hairs. He may also be tri-colored such as being white with black and tan patches.

He has alert, bright dark brown eyes and ears which are somewhat erect and which flop over at the tips. The tail has always been traditionally docked, giving him an attractive, compact look about him but unfortunately the tail is often left long on the dog these days.

Temperament:

Your Jack Russell Terrier is a lively, tenacious, bold, fearless, feisty, cheeky, confident, independent, intelligent and full of life dog. He is super energetic and exuberant, spirited and full of personality.

There are some dog owners who are exhausted by him and would prefer a more quieter dog breed as their companion. Nonetheless he has some excellent characteristics such as being a totally devoted and loving dog.

It is why it is a good idea to have him trained and socialized as it calms him down and makes him more obedient. He is very intelligent and training him will be easy.

These beautiful dogs have always been extraordinary guarding dogs, but he has some other excellent characteristics that make him such a great companion.

He is a loyal, loving dog and easy to train.

You just have to think twice before you take such a large dog into your home, as he doesn’t like to be cooped up in small spaces. He will also eat a lot too.

You want to know that you can provide the Pyrenean Mastiff with all these things. If you have the means to keep such a large pet, then he will make you a splendid canine companion.

With loads of vibrant personality, the energetic Jack Russell Terrier has got so many wonderful characteristics to his name – devotion, intelligence, charming, lively, playful and he is an entertainer – you’ll always be laughing a him.

You do need to pay him attention – you can’t just plonk him in your backyard and forget about him. He wants your love and attention and ignoring him can lead to problem behavior such as obsessive barking.

Give your Jack Russell Terrier all the love and care he needs, and you’ll have an exceptional pet and friend.

This is a fairly healthy dog breed, particularly when you consider what a big dog he is. There are always some health concerns to watch for so that you can take steps to get your pet well again.

Dental Disease:

There is tartar build-up on the teeth and this can lead to infection of the gums and roots of the teeth. Rotting teeth can cause pain, but more worrisome they can cause damage to the heart and kidneys as well as the dog's joints. The vet or professional pet groomers can keep your pet’s teeth clean. They can advise you on how to take care of your large pet’s teeth.

Bacterial and Viral Infections:

Diseases such as rabies and parvo can be prevented by means of vaccine.

Obesity:

You can’t afford for a big dog like this to become obese. It’s a serious disease and can put pressure on your dog’s joints and also cause back pain and digestive disorders.

Parasites:

Your dog can be infected with all kinds of worms and bugs such as ticks d and fleas as well as mites. Some of these parasites can be transmitted to you. Your vet can talk about preventive medication.

Bloat:

Gastric Dilatation and Volvulus, commonly referred to as bloat often occurs in dogs with deep chests.

The stomach twists and fills with gas,and blood to the stomach is cut off. Left unattended to, your dog can die, sometimes within half an hour. His stomach is hard and swollen, requiring immediate veterinary attention.

This particular dog breed has a reputation for being healthy and living to a good age such as 16 or 17 years of age. Of course he needs to be given proper care to reach such a good age.

Some common dog disorders you might want to be aware of are -

Eye disorders:

Lens luxation is actually a common hereditary disorder in these dogs, but even so, with good care, your dog isn’t likely to battle with it. What happens is that the lens in the eye becomes displaced. There are two types, with Posterior luxation being the lesser severe one.Treatment is available.

Musculoskeletal conditions:

Patellar luxation is an hereditary disorder affecting the knees of the dog. The kneecap slips off the groove where it sits and you may notice your dog running while holding his hind leg in the air. It can sometimes slip back in place and then you see your dog running in his usual way. It becomes more serious when it affects both legs.

Spay or Neuter:

Have your pet spayed or neutered if you don’t want puppies. Spaying or neutering also decreases the likelihood of certain types of cancers.

Diet:

Nothing but a top quality diet is good enough for your pet. Commercially manufactured dog foods are a convenient means to feed your pet, and there are some excellent brands.

Look out for the ones for extra large dogs and avoid the ones with low quality ingredients. The dry kibble you give your big pet can be made more tasty when you add some homemade food to it about twice a week.

Dogs thrive on simplicity, so boiled chicken, sweet potatoes, brown rice or pasta, carrots and spinach will be wonderful for him when you chop the food up and add it into the dry kibble. Its such a tasty, wholesome treat for your pet.

Some raw meat added in occasionally will contribute to your pet’s heath. Make sure he is never without a constant supply of fresh, cool water.

Grooming:

Brush his coat at least twice a week. Check inside his ears for redness which could indicate an ear infection.

He’s an intelligent pet with lots of energy, so you will need to keep his mind and body active by ensuring he enjoys walks every day. He isn’t a dog that requires running with you on your jogs or cycles.

Exercise:

The Jack Russell Terrier isn’t just a small dog that can be left to his own devices. He will need proper training and socialization early in life to make him obedient and better to get on with.

He may be a small dog, but he certainly won’t do in the city where he is cooped up in a place with a handkerchief of a garden. He needs lots of space to run and play. He wants his human family to join in with walks, hikes, ball games and swimming.

Diet:

You can buy excellent commercially manufactured dog food which caters for energetic small dog breeds like the Jack Russell Terrier.

Once you have selected the best one for your pet, with dry kibble being better in terms of dental health - you can also add in some brown rice, vegetables and cooked chicken. This is highly beneficial to all dog breeds. A little bit of raw meat can sometimes be added in too.

The bottom line is to to prevent your pet from eating foods high in preservatives, additives and fillers. Never leave your pet without a constant supply of fresh, cool water.