A vet has warned that a certain breed of dog could be banned from breeding due to "debilitating health conditions".
A new study from the Royal Veterinary College said that the breeding of bulldogs in the UK might be banned if their shape is not altered. English Bulldogs are at increased risk of breathing, eye, and skin conditions due to their extreme physical features, including shortened muzzles, folded skin, and a squat body.
Currently the breed has a short lifespan of around eight years partly due to its health problems and the study recommends people "stop and think" before buying them. The findings showed they were more than 38 times more likely than other dogs to get dermatitis in skin folds, nearly 27 times more likely to get an eye condition called 'cherry eye', over 24 times more likely to have a jutting lower jaw and ran nearly 20 times the risk of obstructive airways causing breathing problems.
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And the list continues with them 13 times more likely to have a cyst between the toes more than 12 times suffering from dry eye, 11.5 times rolled inward eyelids, eight times the chance of mange nearly five times the rate of foot infections, and over three times more likely to have a skin infection, wet dermatitis and dermatitis.
The study, published in the journal Canine Medicine and Genetics suggests that they should be bred to have more moderate physical features both for their health and to prevent their breeding being banned. The breed was originally developed as a muscular and athletic dog for bull-fighting but has now been bred as a show and companion animal with a short skull, protruding jaw, skin folds, and squat, heavy build.
This physique has been linked to several health conditions and countries such as the Netherlands and Norway have restricted the breeding of English Bulldogs in recent years. Study author Dr Dan O'Neill, associate professor of companion animal epidemiology at the RVC said: “Every dog deserves to be born with equal and good innate health by having a natural ability to breathe freely, blink fully, exercise easily, have healthy flat skin, mate and give birth.
"For breeds such as English Bulldogs where many dogs still have extreme conformations with poor innate health, the public have a huge role to play by demanding dogs with moderate and healthier conformations. Until then, prospective owners should ‘stop and think before buying a flat-faced dog’.”
He added: "These findings suggest that the overall health of the English Bulldog is much lower than that of other dogs. However, what is most concerning is that so many of the health conditions that English Bulldogs suffer from, such as skin fold dermatitis and breathing problems, are directly linked to the extreme structure of their bodies that has been selectively bred for.
“Given the continued popularity of the breed, the body-shape of the typical pet English Bulldogs should be redefined towards more moderate physical characteristics. Doing so will not only improve the dogs’ health, but could also enable the UK to avoid following other countries in banning the English Bulldog on welfare grounds.”
Researchers compared the risks of common disorders in English Bulldogs to other dogs by analysing records from veterinary practices across the UK from 2016 using the VetCompass database. Looking at a random sample of 2,662 English Bulldogs and 22,039 dogs that were not English Bulldogs, they found that English Bulldogs were twice as likely to be diagnosed with at least one disorder than other dogs.
The breed showed predispositions for 24 out of 43 (55.8%) specific disorders. They were 38.12 times greater risk of developing skin fold dermatitis than other dogs.
They were also at 26.79 times greater risk of developing an eye condition called prolapsed nictitating membrane gland, also called ‘cherry eye’, where the dog’s third eyelid protrudes as a red swollen mass in the lower eye. English bulldogs were also at 24.32 times greater risk of mandibular prognathism where the lower jaw is too long relative to the upper jaw and 19.2 times at risk of brachycephalic obstructive airway syndrome which can lead to severe breathing problems, compared to other dogs.
However they were at reduced risk of some conditions such as dental disease, heart murmur and flea infestation compared to other dogs. They also found that only 9.7% of English Bulldogs in this study were aged over eight years old compared to 25.4% of other dog breeds. This supports the view that a shorter lifespan in English Bulldogs is linked to their poorer overall health.
Dr Alison Skipper, co-author and veterinary historian, said: “Around 1900, some bulldog breeders were already concerned that the exaggeration of ‘certain typical points’ was ‘intensifying predispositions to disease’ and producing ‘cripples and deformities’ with ‘a sadly shortened duration of life’.
"This new research provides strong evidence that modern bulldogs remain troubled by many diseases linked to their body shapes, most of which have been recognised for more than a century. It confirms the need to follow the example of more responsible breeders who prioritise health in breeding decisions to improve the welfare of this popular and iconic breed in the future.”
The authors hope that in the future, the English Bulldog should become recognised and loved for having a longer face, smaller head and non-wrinkled skin, representing a more moderate and healthier conformation. With an estimated 70% of UK dogs not registered with The Kennel Club and only a tiny proportion (2%) ever attending dog shows, the real power for change rests with the public who can demand and purchase only those types of dogs with moderate and healthier conformations.
Bill Lambert, health, welfare and breeder services executive at The Kennel Club, said: "This research shows, there are increasing numbers of bulldogs bred outside any sphere of influence and in a certain way because it is perceived to be ‘cute’, with little regard for health and welfare.
“This research, funded in part by The Kennel Club Charitable Trust, enables us and all those who care about improving bulldog health to understand more about these complicated issues. Careful, responsible breeding can help address health problems and progress has been made to improve and protect bulldog health by those reputable breeders and caring owners who make use of evidence-based tools, like The Kennel Club/University of Cambridge Respiratory Function Grading Scheme.
"A collaborative approach to tackling these issues is crucial; we must continue to work together with breeders, vets and welfare organisations to reduce and ultimately eliminate the health problems faced by brachycephalic breeds, as well as reduce mass demand for these dogs.”
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