American Mastiff is originated from United States but Japanese Spitz is originated from Japan. American Mastiff may grow 57 cm / 23 inches higher than Japanese Spitz. American Mastiff may weigh 80 kg / 177 pounds more than Japanese Spitz. American Mastiff may live 4 years less than Japanese Spitz. Both American Mastiff and Japanese Spitz has almost same litter size. Both American Mastiff and Japanese Spitz requires Low Maintenance.
The history of the American Mastiff is entirely tied to the old European Mastiffs but in particular the English Mastiff. The developers of the American Mastiff crossed the English Mastiff with the Anatolian Mastiff at the Ohio kennel, Flying W Farms. The founder of this breed is Fredricka Wagner. Because of this the English Mastiff and the American Mastiff look very much alike. The difference between the two is that the American Mastiff was bred to have less health concerns than the English Mastiff and without the drooling. In 2000 the CKC acknowledged that the American Mastiff and the English Mastiff were separate breeds.
Spitz dogs include quite a few dog breeds and these dogs all have similar characteristics – pointed, erect ears, slanted type eyes with thick fur.
The Japanese Spitz was developed by Japanese breeders at the time of the 1920s, and bringing in quite a number of dog breeds to do so. The breeders started with the white German Spitz dogs but later other white Spitz breeds were imported and crossed into this developing breed.
The final standard for the breed after World War 11 was accepted by the Japan Kennel Club. The dog became recognized by other kennel clubs of the world.
This crossing of the English Mastiff and the Anatolian Mastiff resulted in a Mastiff with a much drier, less drooling mouth than the other Mastiffs. This is a giant, massive dog – powerful and muscular. With a wide head that is rectangular rather than square. Their eyes are dark amber, and their ears are high on their head and rounded. With a medium size muzzle, black mask and heavy head, the American Mastiff is a handsome dog.
Their chest is broad, deep with ribs that extended backward. He has strong legs that are parallel and wide set. He also has a long tail. Puppies of the American Mastiff are born almost black and as they grow their coat color lightens. In addition, it is important that they have a wrinkled forehead as well and a scissors bite is preferred.
The Japanese Spitz is a small to medium sized dog, being somewhat larger than the Pomeranian. The dog stands at 25 – 38cm, both male and female and weighs anything between 5 to 10kg.
The double coat of the dog is thick and white and the puppies look like large snowball.s He has a pointed muzzle with erect ears and a tail that curls up over the back.
The pure-bred Japanese Spitz, just like other Spitz dogs are smart, inquisitive dogs who show loyalty to their owners, getting on well with children in the home and making a good family pet.
They can be quite stubborn, so training and socialization becomes important if you want him to be obedient. Training is easy as he is an intelligent, bright little dog.
They’re able to adapt to life in the city or in the country, but if you live in the city, you will need to meet his exercise needs.
He can tolerate cold weather quite well but as a companion dog, he prefers being indoors with his human family.
Even though they are small dogs, they are protective and make good watchdogs. They were bred to be companion dogs and they take this role seriously, being loyal, entertaining, fun, friendly and loving with their human family.
It is why they are becoming such a popular breed as they have an amicable nature, getting on well with other pets as well as children.
A love of children and devotion to his pack (family) is bred into the American Mastiff. He is non-aggressive unless you threaten his family or his children. Then he becomes courageous, protective and defensive. This is a gentle giant most of the time, however due to size and the need for strong leadership, the American Mastiff should be socialized and trained early. If they are socialized and trained they will be calm, gentle dogs. They will remain protective and alert, but they will be friendly with strangers. They love to please their people and being highly intelligent they learn fast.
Your Japanese Spitz is going to make you a superb companion and you want to ensure that you are well prepared for him when he arrives. He is feisty, charming, social, bright, alert, active, loyal and loving and you want to be sure that he has everything laid on as a 4-legged family member.
He isn't a high maintenance dog, he isn't demanding and if you love and care for him, you'll find that he fills a vacancy in your life that you'll never want to be without again.
American Mastiffs seem to have fewer health issues than other larger giant breed dogs. However, they can experience allergies as many large, wrinkled dogs do. They also might have a tendency toward eye issues, hip dysplasia, cancer and heart disease. Bloat might be the most life-threatening issue many American Mastiffs experience.
Life expectancy for the Japanese Spitz is about 10–16 years. They are a healthy breed with few genetic problems. Nothing is set in stone though, and your healthy dog can fall prey to some of the many common dog illnesses there are.
They're so sweet, you're tempted to feed him treats all the time, but obesity is a common Japanese Spitz health issue and obesity can lead to many problems with the heart, kidney, diabetes and even joint pain.
Also, eye problems such as ingrown eyelashes and a lower eyelid that rolls inward are problems that are known to trouble these Spitz type dogs. It leads to terrible irritation and damage to the eye. It's definitely time to see the vet to avoid infections and injury.
Giant breeds like the American Mastiff are known for growing rapidly as a puppy and therefore proper feeding and nutrition is essential. The slower your American Mastiff grows, the better. Make sure your puppies get enough phosphorous and calcium in their high calorie diet. Free feeding is not recommended. Feed puppies up to 4 small meals per day and feed adults twice a day.
As previously mentioned this breed is a fairly healthy one, There, are however, certain evaluations you should do with your American Mastiff puppy to be sure she is in good health. These tests would include an elbow and hip evaluation to check for dysplasia. He should have an ophthalmologist and cardiologist examine him as well. Most American Mastiffs will not have any problems, but these evaluations will help to prepare you if they do. The wrinkles in your dogs; face, around the eyes and muzzle must be kept clean as they can become infected if you don’t.
Unlike the way he looks, the American Mastiff is not a couch potato, but neither are they a high energy, exercise machine. They do well living in apartments or homes, with or without a fenced in yard. They need a long walk every day. They need mental stimulation through exercise and games. Make sure they learn to love to play so that they don’t become lazy as they age.
The Japanese Spitz is an active dog and he will require at least one walk a day to keep him happy. He is full of beans and wants to go with you on all your outings.
The diet of your Japanese Spitz is basic to his good health. If you feed him low quality foods deplete of vitamins and minerals, you'll end up with a sick dog who is always at the vet. Puppies need 4 small meals a day while an adult dog can have 1 or 2 meals a day.
He can benefit from the top quality commercially manufactured foods and sometimes you can add in some cooked chicken, rice and vegetables into his dry kibble. Add in a little bit of raw meat too from time to time and ensure that he can always reach his bowl of fresh, cool water.
The beautiful white fur of your Japanese Spitz will need to be brushed at least twice a week to keep it free from loose hair and to keep the fur bright and vibrant.
Check his nails and avoid them getting too long as they can hook on things and cause injury. Check his ears inside and out, keeping them clean and free of debris. Very importantly, keep his teeth clean as dental disease can play havoc with a dog's health.