MyDogBreedsTibetan Mastiff is originated from China but American Molossus is originated from United States. Tibetan Mastiff may grow 17 cm / 7 inches higher than American Molossus. Tibetan Mastiff may weigh 42 kg / 93 pounds more than American Molossus. Both Tibetan Mastiff and American Molossus has same life span. Both Tibetan Mastiff and American Molossus has almost same litter size. Both Tibetan Mastiff and American Molossus requires Moderate maintenance.
The Tibetan Mastiff is still considered to be a primitive breed originating in Tibet centuries ago. The breed was developed to guard property and livestock. They still do this as well as being a much loved family dog and a show dog as well. There is very little history that is documented for the breed prior to the 19th century.
Believed to be centuries old with ancestors who are mastiff like dogs that developed into two different types of Tibetan Mastiffs. These types are the Tsang-Khyi and the Do-Khyi. The Tsang Khyi were guardians for Tibetan monks, while the Tsang-Khyi guarded flocks for nomadic shepherds and in villages.
The first Tibetan Mastiff was imported in 1847 to England and presented as a gift to Wueen Victoria, from India’s Viceroy. By 1873 there was an English Kennel Club and the breed was labeled a large dog from Tibet and entered into the EKC Stud Book.
The next year the future King Edward VII, brought another two Tibetan Mastiffs to the United Kingdom to show in 1875. The first breed club began in 1931. The world wars interfered and no new dogs were imported to England until 1976. Two dogs were given to the President of the United States in the late 1950’sbut were not bred and it wasn’t until 1970 that any more were imported. The US Tibetan Mastiff Club was not founded until 1974 and they were first entered in a National Specialty show in 1979.
In 2007 the AKC recognized the breed as a working dog since 2007. It’s hard to find a purebred Tibetan Mastiff in Tibet anymore.
Based on the massive dog of Mesopotamia in 5000 BC, the American Molossus is the same dog recreated in the United States by and for the lovers of these giant dogs. The ancient Molossus was fierce to look at, massive in size, courageous and loyal. He was undaunted by any animal and stood up to any man attempting to hurt his master. When Rome fell the descendants of today’s Molossus were scattered and attempts to revive the breed have created carious large dogs. The American Molossus is the first true recreation that hits the mark.
The original Molossus was one of the most primitive of dogs, one of the earliest dogs that men domesticated. Their initials duties were the guarding of herds and homes against all enemies. They were incredibly loyal to their one master and stayed with him and protected him. These dogs also ate carrion and served the villages by eliminating animal carcasses. They could handle any other hunting animals such as wolves and large cats. This dog, although extinct was the ancestor of all the Mastiff-type dogs of today. The Molossus is said to be the ancestor of the St. Bernard, English Mastiff, Greater Swiss Mountain Dog, Bernese Mountain Dog, Newfoundland, Great Dane, Great Pyrenees, Rottweiler, Rottweiler and the Neapolitan Mastiff. Now these breeds have become the ancestry of the American Molossus.
According to Marcus Curtis, the founder of the new Molossus, the nearest relative of the American Molossus is the Neapolitan Mastiff. The Hines Bulldog, German Rottweiler, American Bandogge, and South African Boerboel together with the Neapolitan Mastiff were used to form the American Molossus. The goal of the founder was to make a great family pet and protector. It was specifically bred to be courageous, loyal and protective.
Both types of Mastiffs can be present in the same litter, so that both larger and smaller pups are present. Both types are well-muscled and structured. Today’s dogs being developed in China and the West are much larger than the previous ones. These dogs would be less useful to the nomads and cost too much to feed. Today’s dog is very large with a large head and a long double coat. This coat can be black, brown, gold, and blue, with or without tan markings. There are now a few white Tibetan Mastiffs being bread.
The breed standard for the Mastiff is different in the West than in the East. In the East the breed is broken into two categories – the Lion Head and the Tiger head.
This is a giant, massive dog in every way and this recently developed standard makes that very clear. The Molossus should be heavy bones, muscular with a lot of loose skin and wrinkles of all kinds, everywhere. He is an intimidating presence, with a massive square head, broad shoulders, height and mass. No, the American Molossus is not athletic, but he certainly is intimidating.
His head is massive in comparison to his body and it must be square. He has extensive wrinkles and pendulous lips and dewlap. The face is all folds of skin and wrinkles. Deep set eyes, drooping upper lids and lower lids as well as an intimidating expression. His brow is well developed with a marked frontal furrow. The nose is large, and the muzzle is about a third of the length of its head. It is short and broad. Everything about the head must be square. It’s neck and body are powerful and muscular. The chest is deep, wide and barrel like. The back is also powerful and muscular. The front legs are heavy and muscular while the hind legs are broad, strong, powerful and wide-stance. Do not remove the front dew claws. His tail is thick and wide then gradually tapers at the tip.
With extreme caution and only if raised together
Guard dog
Not good. No apartments and cant deal with heat
Highly intelligent very stubborn and independent
The American Molossus is an intimidating massive giant bred for protection and guard duty. He is incredibly loyal to his family and courageous in his protection of them. They are guard dogs, not attack dogs. Their simple appearance is usually enough to frighten off anyone intending harm on their families. He is in reality a loving giant. He is intelligent and stable with a strong desire to please his owner. He is a calm yet vigilant presence in the home.
Because the Molossus is so large, it is recommended that the puppy be socialized and trained professionally. It takes a strong owner to handle this breed. They need to know the rules and have the rules consistently applied. The owner must be the pack leader.
Though considered a primitive dog and isolated for several centuries, so they should not have as many genetic or inherited conditions as other dogs with more cross and in-breeding. These are the potential health issues they might develop:
Elbow and Hip dysplasia – can lead to lameness and arthritis.
OCD Osteochondrois Dissecans – this is also an orthopedic condition when the soft tissue growth is abnormal in the joints. It is painful and the joint is stiff. Don’t breed a dog that has this condition.
Panosteitis – Canine growing pains. Inflammation of the long bones in large dogs as they grow. They will eventually out grow it. Pain can be managed through medication.
Autoimmune Hypothyroidism – Hormone deficiency leading to flaky skin, weight gain and lack of energy. Can be managed through medication.
Canine Inherited Demyelinative Neuropathy – If your Tibetan Mastiff is going to have this condition, they will have it by six weeks of age. Weakness in the hind legs leading to paralysis.
Bloat – deadly if not treated immediately and related to dietary habits.
Like all Mastiffs the American Molossus faces a variety of potential illnesses, some brought on by its size, some not.
This could easily be a function of its massive size. It is a degenerative disease and can cause the dog to become lame. In many cases the vertebrae can fuse, or severe pain can result. This is mostly seen in older members of the breed.
Male Molossus can contract this inherited metabolic disease primarily. It can be life threatening and very serious as it affects the kidney and the bladder.
This is essentially Cervical Vertebral Instability (CVI) and is caused by the pressure of the nerves in the neck and cervical spinal cord. This compression can cause deformity, pain and abnormal stance/gait. IT has been attributed to the nutrition needs and rapid growth of the Mastiff breeds.
Like all giant Mastiff breeds the Molossus can have skin issues from the wrinkles, dysplasia in the joints which we will address below.
Don’t feed the puppy too much protein as you want to prevent Panosteitis and growing too quickly. Do not overfeed. Feed 4-5 cups of high quality large breed puppy food in 3-4 meals day.
4 to 6 or more cups of a high-quality dog food daily, divided into two meals. To avoid bloat do not feed before or after vigorous exercise.
Calm and laid back when inside.
They need 20-30 minutes of vigorous exercise and play daily. They prefer to play with other large dogs.
Remembering that this is a very, very large dog you need to be careful about nutrition and how fast your puppy will grow. American Molossus puppies need four meals a day until 12 weeks old. Then until they are 6 months old feed then 3 times a day. Finally, from 6-month-old puppy to adult – feed them twice in 24 hours.
At one year either feed them once or two small meals.
Many people feed their Molossus eggs, vegetables, fruit, and cottage cheese as ten 5 of the total for the day but avoid other table foods. The Molossus can become very picky about what he eats if you feed him too many table scraps.
In addition to the health problems listed above, the American Molossus is also susceptible to: Ditichiasis – Eyelashes that are in the margin of the eyelids and can cause eye irritation. May require surgery to correct.
Could cause blindness if not removed. Ectropian/Entropion: Eversion and inversion of eyelids which cause ocular irritation.
This is a degenerative disease which causes the dog to go blind. It is a disease the affects the retinal visual cells, first causing night blindness then day blindness. A DNA test is available for detecting PRA in all Mastiff breeds.
Common in large breeds and especially in giant breeds like the Molossus. Multiple forms and causes but all can cause pain and lameness.
Do to wrinkles and loose skin – check often for moisture and infections.
The is a problem based on a variety of possible causes. It happens when the puppy is between 6-16 months of age. Lameness occurs over time in one limb or in all. It can be intermittent and might be caused by diet, genetics, stress, autoimmune or metabolic issues or infection.
This issue is developmental as the dog’s toes turn either inward or outward, then as the condition advances the dog suffers fever, pain in all joints, lethargy and the inability to stand. This happens when the dog consumes too many calories for his activity level in the development times.
The American Molossus is not a couch potato. He needs to be walked at least twice a day and loves to play fetch. He will be greatly benefited by obedience training. Do not overdo it with exercise but make sure they don’t just lay around.