Do dog owners perceive the clinical signs related to conformational inherited disorders as 'normal' for the breed? A potential constraint to improving canine welfare

@article{Packer2012DoDO,
  title={Do dog owners perceive the clinical signs related to conformational inherited disorders as 'normal' for the breed? A potential constraint to improving canine welfare},
  author={Rowena M.A. Packer and Anke Hendricks and Charlotte C. Burn},
  journal={Animal Welfare},
  year={2012},
  volume={21},
  pages={81-93}
}
Selection for brachycephalic (foreshortened muzzle) phenotypes in dogs is a major risk factor for brachycephalic obstructive airway syndrome (BOAS). Clinical signs include respiratory distress, exercise intolerance, upper respiratory noise and collapse. Efforts to combat BOAS may be constrained by a perception that it is ‘normal’ in brachycephalic dogs. This study aimed to quantify ownerperception of the clinical signs of BOAS as a veterinary problem. A questionnaire-based study was carried out… 

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References

SHOWING 1-10 OF 42 REFERENCES
Comparison of owner-reported health problems with veterinary assessment of geriatric horses in the United Kingdom.
TLDR
The low prevalence and relatively poor agreement of owner-reported disease compared to that detected on veterinary examination suggests inaccurate or under-recognition, or inaccurate reporting of health problems by owners of geriatric horses, which could lead to a delay in presentation for veterinary treatment.
Surgical correction of brachycephalic syndrome in dogs: 62 cases (1991-2004).
TLDR
Surgical treatment of brachycephalic syndrome in dogs appeared to be associated with a favorable long-term outcome, regardless of age, breed, specific diagnoses, or number and combinations of diagnoses.
Bronchial abnormalities found in a consecutive series of 40 brachycephalic dogs.
TLDR
Bronchial collapse was a common finding in brachycephalic dogs, and long-term postsurgical outcome was not affected by Bronchial stenosis, and no significant correlation was found between severity of bronchial abnormalities and posts surgical outcome.
Brachycephalic airway syndrome.
  • J. Hendricks
  • Medicine
    The Veterinary clinics of North America. Small animal practice
  • 1992
Breeding and welfare
ONE of the more surprising aspects of the furore following the programme ‘Pedigree Dogs Exposed’ broadcast on BBC 1 on August 19 was that the issues highlighted in the programme were not new. For
Laryngeal collapse in seven brachycephalic puppies.
TLDR
The development of severe secondary laryngeal changes in dogs aged six months or less supports the suggestion that immature brachycephalic dogs should undergo assessment and, if indicated, surgery as soon as any clinical signs of BAS are apparent.
A Vicious Cycle: A Cross-Sectional Study of Canine Tail-Chasing and Human Responses to It, Using a Free Video-Sharing Website
TLDR
The findings highlight that tail-chasing is sometimes pathological, but can remain untreated, or even be encouraged, because of an assumption that it is ‘normal’ dog behaviour, through a vast, free, online video repository, YouTube™.
Brachycephalic airway obstructive syndrome.
TLDR
This is a complex condition, recognized primarily in brachycephalic breeds, that results in varying degrees of upper airway obstruction and results in distortion and collapse of the arytenoid cartilages of the larynx.
Morphometrics within dog breeds are highly reproducible and dispute Rensch’s rule
TLDR
It is demonstrated that AKC breed standards are rigorously adhered to for most domestic breeds with little variation observed within breeds, suggesting that individual measurements may not be needed for genetic studies of morphologic traits, particularly in the case of breed-defining traits that are typically under strong selection.
...
...