Urgent action needed on English bulldog breeding, experts say

English bulldog breeding
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English bulldogs must be bred with more moderate physical features, as a new study from England reports that the breed is significantly less healthy than other dog breeds. 

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, reports the paper published in Canine Medicine and Genetics

The authors at the Royal Veterinary College (Hertfordshire, England) advocate that the English bulldog breed standards should be redefined towards more moderate characteristics, without which there may be a risk that the breeding of this type of dog is banned in the UK.

The English bulldog was originally developed as a muscular and athletic dog for bull fighting, but over the years has been bred to be a show and companion breed with a short (brachycephalic) 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.

The 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.

The team assessed the records of a random sample of 2662 English bulldogs and 22,039 dogs that were not English bulldogs, and 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 per cent) specific disorders.

English bulldogs were at 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 19.20 times at risk of brachycephalic obstructive airway syndrome (which can lead to severe breathing problems) compared to other dogs.

In contrast, English bulldogs were at reduced risk of some conditions such as dental disease, heart murmur, and flea infestation compared to other dogs.

The authors also report that only 9.7 per cent of English bulldogs in this study were aged over eight years old compared to 25.4 per cent of other dog breeds. This supports the view that a shorter lifespan in English bulldogs is linked to their poorer overall health, suggest the authors.

“Given the continued popularity of the breed, the body shape of the typical pet English bulldogs should be redefined towards more moderate physical characteristics,” study author Dan O’Neill said. 

“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.”


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