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| English Miniature Bull Terrier | |||||||||||||||||
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 English Miniature Bull Terrier | |||||||||||||||||
| Other names | Mini Bull | ||||||||||||||||
| Origin | England | ||||||||||||||||
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| Dog (domestic dog) | |||||||||||||||||
TheMiniature Bull Terrier is abreed with origins in the extinctEnglish White Terrier, theDalmatian and theBulldog. The first existence is documented in 1872 inThe Dogs of British Island.
Miniature Bull Terriers have short, fine, and glossy coats that are very close to the skin, like Bull Terriers. They are accepted in the ring to be white, white with another colour, or fully coloured. However, like the Bull Terriers, any blue or liver-coloured coats are undesirable. These dogs require minimal grooming.
In the early 1900s, the difference between the breeds was determined by the dog's weight. However, this led to Miniature Bull Terriers becoming so small and fine that they looked more like aChihuahua than a Bull Terrier. So, in the 1970s, the weight limit was replaced with a height limit of under fourteen inches. They are usually no smaller than ten inches. According to the AKC, miniature bull terriers' weight must be proportionate to its height. However, they tend to range from 20 to 35 lbs.
The Miniature Bull Terriers have a very bold build. They have very muscular shoulders and a full body. Like the Bull Terrier, they have a head described as "egg-shaped". It is flat on top with a Romannose. The eyes are triangular and closely set. The ears are carried erect and are not cropped or otherwise altered. The tail is carried horizontally rather than vertically.
LikeBull Terriers, Miniature Bull Terriers are loving and, like manyterrier breeds, they can be stubborn at times; but despite this they make great dogs for people with limited space.
Miniature Bull Terriers are known to be stubborn and courageous. Despite their diminutive stature, they will readily challenge larger dogs. However, as with any dog, owners can reduce the likelihood of confrontations by providing appropriate training. They are very energetic and playful and love people, but care must be taken as they are variable around other dogs.
Miniature Bull Terriers require little grooming. A quick brushing once a day or a few times a week is sufficient. Sunscreen must be used on any sparse white sections of fur around the face, ears, hindquarters or stomach when outdoors to avoid sunburn and cancer.
A 2024 UK study found a life expectancy of 12.2 years for the breed compared to an average of 12.7 for purebreeds and 12 forcrossbreeds.[1]
Deafness occurs in both colored and white Miniature Bull Terriers. Puppies can be born unilaterally deaf (deaf in one ear) or bilaterally deaf (deaf in both ears). Deaf dogs should not be bred due to deafness being hereditary.[2] BAEP (or BAER) testing is done on puppies prior to sale to discover which puppies have hearing problems.
Lethalacrodermatitis, also known as Acrodermatitis of the Bull Terrier is a raregenodermatosis monogenic autosomal inherited disease found exclusively in white Bull Terriers (including the miniature Bull Terrier). The condition is usually fatal and is characterised by poor growth, decreased serum copper and zinc levels, immunodeficiency,bronchopneumonia, skin lesions, and erosions on thedistal extremities. Other symptoms that occur later on include crusting,papules,pustules,erythema,hyperkeratosis, and colour dilution. The condition manifests within the first few weeks of life and most puppies affected die before the age of 2. Their size is roughly half of their unaffected litter mates at a year old. Unlike the human conditionacrodermatitis enteropathica, zinc supplementation does not improve symptoms.[3][4]
The Miniature Bull Terrier is one of the more commonly affected breeds forprimary lens luxation which is caused by anautosomal recessive mutation of theADAMTS17 gene.[5]
When the Bull Terrier breed was first created in 19th century England, it was about the same size as the Miniature Bull Terrier.[6] Miniature Bull Terriers were granted membership in theAmerican Kennel Club (AKC) on 14 May 1991 (effective 1 January 1992).[7][8]