The Breed History
This is an ancient breed with reports dating back 5000 years,
but only recognized as a distinct breed since the 1940s. Very
early origins trace back to the war dogs (Macedonian, Sumerian,
Assyrian) in the middle east and Asia. Alexander the Great was
reported to have crossed war dogs with short-haired Indian dogs,
giving rise to the Molossus. The Romans crossed these Molossus
dogs with English Mastiffs when they invaded, increasing their
size. In southern Italy in the Neapolitan region, these crossbreds
were further selected for guarding and inbred over the years. Breed
characteristics that define the Neapolitan Mastiff include extensive
loose skin, enormous body and head, and a smooth lumbering gait.
First reported imports to the USA occurred in the 1970s, and now
estimates are that 6000 dogs are in the country, especially along
the eastern seaboard. AKC recognition occurred in 2004.
Breeding for Function
These dogs fulfilled many roles including guard dog, war dog,
hunting dog, and draft dog.
Physical Characteristics
Height at Withers: female 24-29" (61-74 cm), male 26-31"
(66-79 cm)
Weight: bitches: 110 lb (50 kg), dogs 150 lb (68 kg)
Coat: Smooth, short (1") and dense, the hairs are straight. Lacks
furnishings anywhere. Colors include black, tawny, mahogany, grey
(also termed blue). Sometimes brindling may occur, but must be
tan. Any white markings must meet the breed standard-if outside
defined areas, these are a disqualification. Blue color is most desired
as he blends into the shadows during guarding.
Longevity: 8-10 years
Points of Conformation: Massive! Heavy boned. If not, the dog is
eliminated. The head is substantially larger than a typical dog and
the skull top is broad, flat and parallel to the muzzle profile. The
stop is very well defined, muzzle is square. The head has specified
folds that must be present. Bite is scissors or slightly undershot. A
little longer than tall, the first thing that strikes you is the masses
of folded and wrinkled loose skin over the dog, with an extensive
dewlap merging with massive flews. The eyes are expressive, deep
set, with large overhanging dorsal palpebral, and lower palpebral
sags, showing the third eyelid. Eye color and rim synchronize with
coat color, and usually are brown to amber. Ears may be cropped to
a triangular shape. The neck is short and well muscled. The thorax
is deep and ribs are well sprung. The topline is level. The abdomen
is not tucked up. Front dewclaws are not to be removed but rear
ones are. Feet are large, round and the front feet are slightly turned
out. Tail is tapered, and docked to 1/3 of the length to the tarsus.
Carriage is horizontal to slightly elevated when working. The gait is
slow, steady and a rolling swaying attitude is normal, especially if
pace rather than trot. The head is carried just above the topline level
usually, and front feet may paddle a bit. There is a low shedding
tendency except during seasonal coat turnover.
Recognized Behavior Issues and Traits
Breed attributes ascribed include: Loyal-even devoted, gentle, well
tempered, calm yet wary of strangers, fearsome when provoked.
Not recommended for young children due to extreme large size and
weight. They are droolers. Tolerate cool weather better than hot.
Need enough room to move around. They are not well suited to
small apartments. Low to moderate need for exercise.
Normal Breed Variations
Late maturing-about 3 years of age
Tend to need cesarian section and occasionally cannot breed
without artificial insemination. In a UK study, 36.4% of litters were
delivered via Cesarian section.
Drug Sensitivities
None reported
Inherited Diseases
Hip Dysplasia: Polygenically inherited trait causing degenerative
joint disease and hip arthritis. Reported at a frequency of 60% in a
Polish study. OFA reports 47.7% affected.
Elbow Dysplasia: Polygenically inherited trait causing elbow
arthritis. OFA reports 37.5% affected.
Patella Luxation: Polygenically inherited laxity of patellar ligaments,
causing luxation, lameness, and later degenerative joint disease.
Treat surgically if causing clinical signs. Too few Neopolitan Mastiffs
have been screened by OFA to determine an accurate frequency.
Disease Predispositions
Hypothyroidism: Inherited autoimmune thyroiditis. 7.9% positive
for thyroid auto-antibodies based on testing at Michigan State
University. (Ave. for all breeds is 7.5%).
Prolapsed Gland of the Nictitans (Cherry Eye): The breed is
reported to have a high frequency of this condition secondary to
inflammation of the gland. Some surgeons report frequent relapses after tacking surgery due to a defect in the cartilage, and removal
should be considered.
Gastric Dilatation-Volvulus (bloat, GDV): Polygenically inherited,
life-threatening twisting of the stomach within the abdomen.
Requires immediate treatment. Reported cause of death of 28.6%
of Neopolitan Mastiffs in one study.
Cranial Cruciate Ligament (ACL) Rupture: Traumatic tearing of the
ACL in the stifle, causing lameness and secondary arthritis. Treat with
surgery. Reported at an increased incidence versus other breeds.
Entropion: Rolling in of eyelids, often causing corneal irritation
or ulceration. Reported to be common in the breed, but too few
Neopolitan Mastiffs have been CERF eye examined to determine an
accurate frequency.
Ectropion: Rolling out of eyelids, often with a medial canthal
pocket. Can also cause conjunctivitis. Reported to be common in
the breed, but too few Neopolitan Mastiffs have been CERF eye
examined to determine an accurate frequency.
Cataracts: Inherited cataracts occur in the breed, but too few
Neopolitan Mastiffs have been CERF eye examined to determine
an accurate frequency. CERF does not recommend breeding any
Neopolitan Mastiff with a cataract.
Distichiasis: Abnormally placed eyelashes that irritate the cornea
and conjunctiva. Can cause secondary corneal ulceration. Too few
Neopolitan Mastiffs have been CERF eye examined to determine an
accurate frequency.
Cardiomyopathy, Allergies, Demodecosis, Leishmaniasis, and
Cryptorchidism are reported problems in the breed.
Patent Ductus Arteriosis and Progressive Retinal Atrophy are
reported.
Isolated Case Studies
Teratoid Medulloepithelioma: A 4-year-old Neapolitan mastiff
presented with acute glaucoma of the left eye and progressive
neurologic signs. A tumor of the left eye was identified. On necropsy,
the ocular tumor originated from the ciliary body, metastases with
the same morphology were present in the brain and in one kidney.
The diagnosis was malignant teratoid medulloepithelioma.
Myocardial Myxosarcoma: A two years and eight months old male
Neopolitan mastiff presented with a history of chronic diarrhea
and weight loss. No primary gastrointestinal or metabolic cause for
the diarrhea could be identified. Echocardiography revealed a large,
multilocular, cyst-like structure within the pericardium compressing
the heart. The mass was surgically excised from the left ventricular
myocardium, and identified as a low-grade malignant myxosarcoma.
The dog made a full recovery, but returned with diarrhea, weight
loss, tumor recurrence and local metastasis 11 months later.
Undifferentiated Sarcoma: A six-month-old Neopolitan mastiff
presented for a rapidly growing cervical mass. Necropsy revealed
undifferentiated sarcoma with metastases to the mediastinum,
pleura, lungs, liver, kidneys, omentum, mesentery, and multiple
lymph nodes.
Genetic Tests
Tests of Genotype: none
Tests of Phenotype: Recommend hip and elbow radiographs, CERF
eye examination, cardiac evaluation, patella evaluation, and thyroid
profile including autoantibodies.
Miscellaneous
- Breed name synonyms: Mastino Napoletano, Italian Mastiff,
Mastino
- Registries: AKC, UKC, CKC, KCGB (Kennel Club of Great Britain),
ANKC (Australian National Kennel Club), NKC (National Kennel
Club), FCI.
- AKC rank (year 2008): 112 (357 dogs registered)
- Breed resources: United States Neopolitan Mastiff Club:
www.neapolitan.org
The Neopolitan Mastiff Club UK: www.uknmc.org.uk
The Mastino Health Foundation: www.mastinohealth.org
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