The Bulldog is seen by some as the national dog. The modern Bulldog bears little resemblance to the bull-bating dog of previous centuries. Encouraged by the show ring breed standard, he has become shorter legged, wider chested and extremely short faced. His temperament varies. His exercise needs also vary depending on his ability to breathe and regulate his body temperature. It is advisable to choose a Bulldog puppy from parents of a less extreme type. Average lifespan 6 years.
Inbreeding coefficient – COI
(should be as low as possible)
The breed average COI is 10.0%
Effective Population Size (EPS) 67.85
EPS is a measure of how many individuals are contributing genetically to a breed population in KC registered dogs. It is a measure of the size of the gene pool in a breed. Lower than 100 is considered critical by conservation biologists and below 50 puts a breed at grave risk.
Health and welfare problems due to conformation (body shape and physical characteristics)
- The conformation of many Bulldogs has extreme and causes many welfare problems
- There can be problems in mating naturally
- Dystocia (difficulty giving birth) due to a mismatch in size between the mother’s pelvis (too small) and the puppy’s head (too big). Many Bulldog puppies are born by caesarean section.
- Excessive wrinkling of the facial skin can lead to infection if not cleaned regularly.
- His jaw structure gives the Bulldog abnormal placement, number, and development of teeth.
- Brachycephalic obstructive airway syndrome: his extremely short nose and narrow nostrils lead to breathing problems, panting, chronic discomfort, exercise intolerance and difficulty eating.
- He is sensitive to heat because of his pinched nasal passages and abnormally narrow trachea.
- Brachycephalic ocular syndrome (several eye conditions leading to chronic irritation and pain) linked to shortenend nose and head shape and consequences on the shape and position of eyes)
- Hemivertebrae (deformity of spinal bones, causing pressure on spinal cord, pain, loss of hind limb function and incontinence) Associated with selection for curly tail.
- The curly tail makes it difficult to signal to other dogs
Note that efforts are now being made by the Bulldog breed council to breed away from these extremes.
BVA/KC Health Schemes http://www.bva.co.uk/chs
- Hip dysplasia (malformation of the hip joints causing pain and lameness): breed mean score 27.9 (severe) parents should be much lower.
- Elbow dysplasia (malformation of the elbow joint causing pain and lameness): ideally O:O
- The Bulldog is one of the 15 high profile breeds designated by the Kennel Club as requiring particular monitoring by reason of visible conditions which may cause health and welfare problems.
DNA tests available
Parents should be tested for:
- HUU Hyperuricosuria (stone formation in urine)
Unofficial (breed club) schemes
- Breed Council certificate for breeding
Ask the breeder to show you the certificates for the above tests/screening for both parents (or check the KC’s health test results finder). If any of the above tests have not been considered necessary by the breeder (and there may be good reasons), ask her to explain why.
Other diseases reported
(for which there are currently no genetic or screening tests for sire or dam)
- Atopy (hypersensitivity to pollens and other protein particles, causes intense itching and skin damage)
- Heart disease: Aortic stenosis (narrowing of artery); Pulmonic stenosis (narrowing of pulmonic valve which can lead to heart failure); Ventricular septal defect
- Generalised demodicosis (mange)
- Hypothyroidism (underactivity of thyroid gland)
- Patellar luxation (dislocated kneecap)
- Distichiasis (double row of eyelashes turned against the eyeball)
- Keratoconjunctivitis sicca (dry eye) (autoimmune disease)
- Intervertebral disc disease (rupture of a disc with compression of the spinal cord causing pain and weakness and sometimes paralysis)
- Prolapse of the nictating gland (Cherry eye) (part of the eye normally not visible becomes visible and can be damaged)
- Panosteitis (painful bone inflammation)
- Cancer: brain tumours; lymphoma; mast cell tumours