MyDogBreedsRyukyu Inu is originated from Japan but American Molossus is originated from United States. Ryukyu Inu may grow 16 cm / 6 inches shorter than American Molossus. Ryukyu Inu may weigh 23 kg / 50 pounds lesser than American Molossus. Both Ryukyu Inu and American Molossus has almost same life span. Both Ryukyu Inu and American Molossus has same litter size. Ryukyu Inu requires Low maintenance. But American Molossus requires Moderate maintenance
The Ryukyu Inu is a medium-sized dog that comes from Okinawa, Japan.
It’s a dog that is fairly rare having been used to track boar. There isn’t much information on the dog’s history but after its numbers declined after World War II, there was an urge in the 1980s to save the breed.
The dog isn’t recognized by any major Kennel Clubs.
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.
Japanese dog breeds end with the word ‘Inu’ or ‘Ken’ . It means ‘dog’.
The medium sized Ryukyu Inu stands at between 46 to 50cm in height and weighs between 15 to 25kg. He has a black nose, dark brown eyes and erect ears. The tail is long and curls over the back.
The dog’s coat is short and you get the single- and double coated varieties. The coat can be brindle, red, white, liver or black. Some of the dogs have tiger-like stripes in the coat. People are amazed at these dogs as they have incredible climbing abilities and are even capable of climbing a tree.
These dogs are quiet, unobtrusive dogs. The Ryukyu Inu looks very much like a wild dog, which gives the impression of being un-trainable and ferocious but they are easily trained and make splendid pets.
Many people who have had them as pets say they would choose this dog over and over again. They are brave too and get on well with children or pets in the home. They don’t look for trouble, and their kind, stable natures make them excellent therapy dogs.
They’re intelligent dogs and will require plenty of mental and physical stimulation. They will also need to be trained and socialized as they are confident, strong-willed dogs who might not obey you if left to do what they want.
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.
This dog has always been a hunting dog so he will want to have his fair share of good exercise – long walks as well as ball and rope games.
He makes a splendid pet because he has an amicable nature wanting to please. He is quiet, loving and loyal, and with such a dog in your home and heart, you just keep discovering what a wonderful pet this 4-legged friend can be.
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.
These Japanese dogs are thought to be fairly healthy dogs, but like with most other dogs, you would need to be aware of hip dysplasia, bloat, caner and hypothyroidism.
The Ryukyu Inu, with its 10 to 12 years lifespan, will be prone to minor ailments, but with good care he is not likely to succumb to any of them.
Cataracts have a number of causes in dogs. This disease of the eye can occur at any age, and can develop over weeks or even years.
Cataracts can occur in just one eye or both eyes and a disease such as diabetes can bring on a cataract.
Good nutrition is important for a dog to build a strong immune system, and nutritional supplementation can certainly help to enhance lens health. Cataract surgery can be performed to remove the cataracts.
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.
The coat of the Ryukya Inu requires brushing twice a week to remove loose hairs. At the same time check your dog over for new lumps and check inside his mouth for bad teeth. Bad teeth can cause lots of pain and toxins within the body. You can also choose to have the teeth seen to and cleaned by your vet.
Provide him with his own warm, dry place to sleep.
Provide him with top quality food. There are some excellent commercially manufactured foods on the market that make a point of ensuring good ingredients in them. Your Ryukya Inu needs good food to ensure longevity and health.
Try to include some home-made food for him which can be simply mixed into the dry kibble twice a week. Boiled chicken, brown rice or pasta and spinach, sweet potatoes and carrots is super tasty and nutritious. This food can all be chopped up, refrigerated and added warmed up and in small portions to your pets dry kibble once or twice a week. Your dog will love it.
Ensure there is always a bowl of fresh, cool water within his reach.
Have him neutered or spayed if you aren’t wanting puppies.
Keep his vaccines up to date against some deadly canine diseases.
Get him to the vet when he is injured, in pain or sick.
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.