MyDogBreedsParson Russell Terrier is originated from United Kingdom but American Molossus is originated from United States. Parson Russell Terrier may grow 30 cm / 11 inches shorter than American Molossus. Parson Russell Terrier may weigh 40 kg / 88 pounds lesser than American Molossus. Both Parson Russell Terrier and American Molossus has almost same life span. Both Parson Russell Terrier and American Molossus has same litter size. Both Parson Russell Terrier and American Molossus requires Moderate maintenance.
The Parson Russell Terrier hails from England and is a small to medium sized dog dating back to the 18th century. It is believed that Reverend John ‘Jack’ Russell was the developer of this dog. The Parson has always been involved with England’s sport of foxhunting.
They’re spritely and quick and have been able to keep up on a hunt and take on a fox in its lair. The dog was first recognized in 1990 in the United Kingdom as the Parson Jack Russell Terrier and in America in 1997.
All the top kennel clubs recognize this dog as the Parson Jack Russell Terrier.
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.
The Parson Jack Russell is essentially a white dog with black and tan or orange-fawn patches. He can be tri-colored too. The coat is either smooth, rough or broken.
He stands at between 33–36cm tall at the withers and weighs between 5 and 8kg. Unlike the Jack Russell, the Parson Russell Terrier has longer legs. He has some longer hair on the head, legs and body. The ears are floppy wit the tip pointed forward. The tail has always been docked but when left long it it held high, slightly curving over the back.
Feisty, brave, cheeky and alert, the Parson Russell Terrier is an energetic dog who gets on well with children as he knows that this is essentially where his games come from.
He is bold and clever and you’ll be able to have him trained and socialized without any trouble. These little dogs are full of life and they are protective of their humans and their property, making excellent watchdogs.
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.
In general the Parson is a friendly,loving dog, fairly small but packed full of feisty personality.
They make excellent pets for the entire family. He is an intelligent dog, but typical of most terriers he can be stubborn, but this can easily be fixed with training and socialization. With good care, he’ll make you a wonderful little pet and companion.
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.
Your Parson Jack Russell can live to be between 12 and 15 years but nonetheless he does have some breed-related health issues to watch for.
Eye conditions which can affect this dog include primary lens luxation,cataracts, corneal dystrophy and progressive retinal atrophy. With cataracts the lens of the eye develops a cloudy look resulting in poorer vision and sometimes blindness. Cataract surgery is available for dogs.
Your Parson Jack Russel should be lean and muscular and always full of energy. Avoid feeding him unhealthy treats which can lead to obesity and other health problems.
All kinds of parasites such as ticks, fleas and worms can invade your dog’s body. Roundworms, hookworms and tapeworms can cause havoc with their health and some of these parasites can even be transmitted to humans. It’s why it is important to get your puppy to the vet to be de-wormed and to get his first injections.
A liver disorder known as portosystemic shunt can mean that some of the blood supply doesn’t get to the liver and it doesn’t function properly. This will mean the liver can’t remove toxins from the bloodstream effectively.
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 Parson Russell Terrier has different coat types – the smooth and rough and both will require regular brushing. Rough coats will require plucking or clipping to avoid matting.
Check his eyes and ears regularly. Look inside his ears for excess wax and dirt which could lead to an ear infection. His nails should also be trimmed.
The best thing you can do for your Parson Russell Terrier if you don’t want your pet producing puppies is to have it spayed or neutered. Spaying for females or neutering for males decreases the likelihood of certain types of cancers too so it can be beneficial.
Diet is hugely important for a Parson Russell Terrier and the food you decide for him can impact his health. Many time those ‘treats’ you feed your pet do nothing more but give him a stomach ache.
It's tempting to pop chocolates, popcorn, nuts and ice cream into your pets mouth when he is so adorable but in the long run it is shortening his life. All he basically requires and needs is a simple, consistent diet of the top commercially manufactured foods mixed with some tasty home made food from time to time.
Boiled chicken, brown rice and vegetables such as sweet potatoes, carrots and spinach will do your pet wonders. Ensure he always has fresh, cool water available to him.
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.