Formosan Mountain Dog vs Chilean Fox Terrier - Breed Comparison

The Chilean Fox Terrier, developed in Chile, is a dog breed which comes from crossing the British Fox Terrier with some of the local Chilean dogs.

The dog is thought to have been developed in the 19th century already, some time between 1790 and 1850.

The dog is known for its skills in catching rats and mice. Known also as the Chilean Rat Terrier, Terrier Chileno or Ratonero, the Chilean Fox Terrier hasn’t achieved formal recognition with any of the leading canine organizations.

The Formosan Mountain Dog is most often known as the Taiwan dog and it is a landrace indigenous to Taiwan. It is a small to medium breed of dog that was semi-wild at one time. The colonialization of Taiwan and other foreigners help to fully domesticate the Formosan Mountain Dog. They were found to be very trainable and uniquely suited for the terrain around Taiwan. The dogs were easy to train and now serve as hunting dogs, stunt dogs, guard dogs, rescue dogs, therapy dog and personal companions. There are three types of Formosans two smaller types and one medium. However, the original pure Formosan Mountain Dog is getting close to extinction again because the government and people have provided no protection or conservation efforts for them. These dogs have been living in Taiwan in the mountains and were called Formosan Mountain Dogs when Taiwan was known as Formosa. They come from a line of Southeast Asian hunting/gun dogs and they are considered ‘rare’ now.

According to historian Dr. Sung Yung-yi, the breed went through 4 major catastrophes that affected their development. The first of these was the Dutch Establishment in 1624. The Dutch colonized Taiwan and imported both people and dogs. The dog they brought in was called the Flying Dog and was either Greyhound or Pointer. Eventually, the Flying Dog bred with the Formosan Mountain Dog. This along with the slaughter of dogs belonging to the indigenous people by the government, starting the decline of the original Taiwan dog.

In 1895, it was the Japanese acquiring Taiwan following the First Sino-Japanese War. The Japanese bred the Formosan Mountain Dog extensively with the own Japanese dogs. This further diluted the line and authenticity of Taiwan dogs.

This was followed by World War II when German Shepherds traveled with the US Army and they cross-bred with the Formosan. This was the third major dilution of the Formosan Mountain dog line. At the same time, the Japanese government considered the Formosan Mountain Dog a sanitation threat and barbaric. They massacred them in large numbers in the name of sanitation.

The fourth and final dilution took place during the Kuomintang Era beginning in 1945 with the arrival of the Chinese Nationalist Party. They brought with them the culture of eating dogs. During this time the economy of Taiwan took off and business people began to import their own foreign dogs that were high priced purebreds. These dogs bred with the Formosan and other Formosans were just abandoned to die. The ranks of the breed became very thin indeed. Today’s pure Formosan is highly valuable and extremely rare. Because of all the crossbreeding over the centuries, today’s purebred Formosan Mountain Dog is very different from the Taiwan dog of old. Today’s Formosan is loved all over the island and is a companion and watchdog.

Today there is an effort by Taiwanese ecologists to put together a research project that would study and preserve the Formosan in its indigenous form. Dr. Yung-yi led this effort. He located only 46 dogs with a pure pedigree, 21 females and 25 males. They let the Food and Agricultural of the United Nations know and the dogs were labeled close to extinction. Reproducing from the indigenous dogs to purify and increase the breed was the goal. The government was not very supportive.

Today the Royal Air Force is looking at the Formosan Dog to use for military security. They are currently only using German Shepherds and needed another choice. It was decided that the Formosan Mountain Dog had a better sense of smell, dexterity, alertness, and hearing as well as better padding on their paws.

Through these efforts and those of foundation stock breeders and owners, the Formosan Mountain Dog in its indigenous form was brought back. Some call this dog a purebred Formosan while others consider it a new type. Standards were presented to the FCI for registrations as a purebred. This debate continues today

The Chilean Fox Terrier looks almost identical to his ancestors. He stands between 30 – 40cm and weighs between 5 to 9kg.

He is squarely proportioned, he is athletic looking and well muscled with long, slender legs. Many of these dogs are born with naturally short tails, but if not, then the tail is usually docked after the first or second vertebrae. Now that docking is falling out of favor, the breed is losing that distinctive look.

The head of the Chilean Fox Terrier is triangular with the muzzle being somewhat shorter than the Smooth Fox Terrier. The ears of the Chilean Fox Terrier are smallish and high set, being partially erect. The coat of the dog is short and thick and essentially white while the face is usually tan and black.

Temperament:

The Chilean Fox Terrier is loyal with his human family and can fit in well with a family where there are children and other pets.

Training and socialization become necessary for the dog so that he becomes obedient and amicable around his family and with strangers. He isn’t an aggressive dog but he is alert and can make an excellent watch dog.

He is dominant and confident and also intelligent and easily trainable. He is an active dog so he will require exercise every day, whether he lives in the city or in the country.

The Formosan Mountain Dog that was seen during Dr. Sung Yung-yi’s research is a medium-sized dog, athletic and fit. It has a deep chest and a slim waist. The ears are half-covered, the nose is black and there is a coating of black on the tongue. This black tongue is the most distinguishing attribute of the Formosan Mountain Dog. The breed has a strong jaw, the skull that is just slightly longer than the muzzle, which is flat and tapered, triangle face and almond eyes. They have a thick coat and upright, curved tail.

The dogs are known to be extremely agile with an ability to hop that is rare in dogs but helps when hunting animals like rats. The Formosan Mountain Dogs hunted in packs with each dog attacking the prey with one bite until it was too exhausted to fight them off any longer.

The Chilean Fox Terrier is a lively dog with an alert expression. He has become a popular companion dog, being less aggressive than other Terriers.

When you treat him well he becomes a loyal friend and forms a strong bond with his human owners. He gets on well with children who have been taught to respect animals, but he tends to become a bit aggressive around other dogs of the same sex.

Socialization and training however can make him much more relaxed around other dogs.

He is an attractive little dog with his short coat, giving the appearance of being well groomed. He can adapt to country- or city life too. He is such an easy dog to keep too so why not choose him as your 4-legged family member? He promises to make the perfect family companion.

Children friendliness

The Formosan Mountain Dog is very child-friendly. He is affectionate and loyal to his family and protective of his children.

Special talents

He is intelligent and has exceptional hunting skills. He is a good guard dog due to his alertness, but they can be fear-aggressive.

Adaptability

He is very adaptable to living in any location as long as there is somewhere for him to get adequate exercise. He is friendly to people and animals.

Learning ability

He is intelligent and learns quickly.

The Chilean Fox Terrier is a healthy breed who doesn’t appear to have any particular health issues. It doesn’t mean that your dog will be free from disease, but it is worth knowing that a quality diet, fresh water and lots of love and attention does enhance longevity in a pet.

It is to your benefit to know about one or two common diseases that your dog could get.

Bloat:

You’ll notice your pet’s stomach being swollen. Bloat is a disease which can become dangerous because the stomach can twist. Once this happens, gas can’t escape from the stomach and your pet will want to vomit, he’ll salivate and you’ll notice unusual restless kind of behavior. You need to get him to the vet as soon as possible.

Kidney Disease:

This is also a disease that any dog can develop and can be a complication of another pet disease such as Lyme disease. One of the first signs of kidney disease in dogs is drinking more often than usual and also urinating more often.

He’ll lose his appetite and be lethargic and likely lose weight. Kidney disease is a serious disease and you will need to get your pet to the vet as soon as possible.

Because there have not been any studies done on the health of the Formosan Mountain Dog, there is not a lot known about any inherent or genetic health issues. It would seem that some bloodlines are healthy, and others have some serious issues. Especially because there are no studies, it is important for breeders to test for eye issues and skeletal issues through the Orthopedic Foundation for Animals and the Canine Eye Registration Foundation.

Some of the health issues the Formosan Mountain Dog might be susceptible to.

1. Dysplasia: Hip and/or Elbow
2. Can cause lameness and/or arthritis
3. Luxating Patella
4. Floating or dislocated kneecap
5. PRA – Progressive Retinal Atrophy
6. Degeneration of the retina – causes blindness
7. Cataracts
8. Can be removed/causes sight issues or blindness
9. Mange Demodex/Demodicosis/Demodectic
10. Caused by mites and can be treated

The Chilean Fox Terrier is a low maintenance breed and this means you won’t be having to part with any money on grooming sessions for him. He’ll basically require a brushing twice a week.

The Chilean Fox Terrier, as a smaller dog breed, will also require regular dental brushing, as neglecting this can result in dental problems as well as a host of diseases that are associated with gum disease and tooth decay.

Make sure to feed him a quality diet full of vitamins and minerals and ensure he always has fresh, cool water available.

Feeding the puppy

Feed a high-quality puppy food for medium size dogs at the rate of a ¼ cup twice a day until 8 months then ½ to ¾ twice a day until 12-16 months.

Feeding the adult

1 to 2 cups of high-quality dry food split into 2 meals per day.

Points for Good Health

Generally healthy breed. Keep clean and watch for mites.

Games and Exercises

This is an energetic breed and he needs a lot of exercise. He must have at least an hour of exercise daily but the more, the better. He loves swimming and jogging with his people. He’s athletic, smart and agile. He does well with field trials, tracking, agility, and obedience.