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

Published online by Cambridge University Press:  01 January 2023

RMA Packer ,
A Hendricks  and
CC Burn
RMA Packer*
Affiliation:
Centre for Animal Welfare, Royal Veterinary College, Hawkshead Lane, North Mymms, Hatfield, Hertfordshire AL9 7TA, UK
A Hendricks
Affiliation:
Centre for Animal Welfare, Royal Veterinary College, Hawkshead Lane, North Mymms, Hatfield, Hertfordshire AL9 7TA, UK
CC Burn
Affiliation:
Centre for Animal Welfare, Royal Veterinary College, Hawkshead Lane, North Mymms, Hatfield, Hertfordshire AL9 7TA, UK
*
* Contact for correspondence and requests for reprints: [email protected]
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Abstract

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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 owner-perception of the clinical signs of BOAS as a veterinary problem. A questionnaire-based study was carried out over five months on the owners of dogs referred to the Queen Mother Hospital for Animals (QMHA) for all clinical services, except for Emergency and Critical Care. Owners reported the frequency of respiratory difficulty and characteristics of respiratory noise in their dogs in four scenarios, summarised as an ‘owner-reported breathing’ (ORB) score. Owners then reported whether their dog currently has, or has a history of, ‘breathing problems’. Dogs (n = 285) representing 68 breeds were included, 31 of which were classed as ‘affected’ by BOAS either following diagnostics, or by fitting case criteria based on their ORB score, skull morphology and presence of stenotic nares. The median ORB score given by affected dogs’ owners was 20/40 (range 8-30). Over half (58%) of owners of affected dogs reported that their dog did not have a breathing problem. This marked disparity between owners’ reports of frequent, severe clinical signs and their perceived lack of a ‘breathing problem’ in their dogs is of concern. Without appreciation of the welfare implications of BOAS, affected but undiagnosed dogs may be negatively affected indefinitely through lack of treatment. Furthermore, affected dogs may continue to be selected in breeding programmes, perpetuating this disorder.

Keywords

animal welfarebrachycephalicconformationdogowner perceptionpedigree
Type
Research Article
Information
Animal Welfare , Volume 21 , Issue S1: Proceedings of the UFAW International Symposium ‘Making animal improvements: Economic and other incentives and constraints’ Historic Dockyard, Portsmouth, UK, 2011 , May 2012 , pp. 81 - 93
Copyright
© 2012 Universities Federation for Animal Welfare

References

Aron, DN and Crowe, DT 1985 Upper airway obstruction: general principles and selected conditions in the dog and cat. Veterinary Clinics of North America Small Animal Practice 15: 891–917CrossRefGoogle ScholarPubMed
Asher, L, Diesel, G, Summers, JF, McGreevy, PD and Collins, LM 2009 Inherited defects in pedigree dogs. Part 1: disorders related to breed standards. The Veterinary Journal 182: 402–411. http://dx.doi.org/10.1016/j.tvjl.2009.08.033CrossRefGoogle ScholarPubMed
Brown, D and Gregory, S 2005 Brachycephalic airway disease. In: Brockman, D and Holt, D (eds) BSAVA Manual of Canine and Feline Head, Neck and Thoracic Surgery pp 84. BSAVA: Cheltenham, UKGoogle Scholar
Burn, CC 2011 A vicious cycle: a cross-sectional study of canine tail-chasing and human responses to it, using a free video-sharing website. PLoS ONE 6: e26553. http://dx.doi.org/10.1371/journal.pone.0026553CrossRefGoogle ScholarPubMed
CAWC 2006 Breeding and welfare in companion Animals. The Companion Animal Welfare Council's Report on Welfare Aspects of Modifications, through Selective Breeding or Biotechnological Methods, to the Form, Function, or Behaviour of Companion Animals. CAWC: London, UKGoogle Scholar
De Lorenzi, D, Bertoncello, D and Drigo, M 2009 Bronchial abnormalities found in a consecutive series of 40 brachycephalic dogs. Journal of the American Veterinary Medical Association 235: 835–840CrossRefGoogle Scholar
Evans, HE 1993 Miller's Anatomy of the Dog. WB Saunders: Philadelphia, USAGoogle Scholar
Forrester, SD, Moon, ML and Jacobson, JD 2001 Diagnostic evaluation of dogs and cats with respiratory distress. Compendium on Continuing Education for the Practicing Veterinarian 23: 56Google Scholar
Ginn, JA, Kumar, MSA, McKiernan, BC and Powers, BE 2008 Nasopharyngeal turbinates in brachycephalic dogs and cats. Journal of the American Animal Hospital Association 44: 243–249CrossRefGoogle ScholarPubMed
Grandin, T and Johnson, C 2005 Animals in Translation: Using the Mysteries of Autism to Decode Animal Behaviour. Scribner: New York, USAGoogle Scholar
Harvey, CE 1989 Inherited and congenital airway conditions. Journal of Small Animal Practice 30: 184–187. http://dx.doi.org/10.1111/j.1748-5827.1989.tb01531.xCrossRefGoogle Scholar
Hedlund, CS 1998 Brachycephalic syndrome. In: Bojrab MJ, Ellison GW and Slocum (eds) Current Techniques in Small Animal Surgery. Williams & Wilkins: Baltimore, USAGoogle Scholar
Hendricks, JC 1992 Brachycephalic airway syndrome. Veterinary Clinics of North America Small Animal Practice 22: 1145–53CrossRefGoogle ScholarPubMed
Hendricks, JC, Kline, LR, Kovalski, RJ, O’Brien, JA, Morrison, AR and Pack, AI 1987 The English bulldog: a natural model of sleep-disordered breathing. Journal of Applied Physiology 63: 1344–1350CrossRefGoogle ScholarPubMed
Holt, DE 2004 Upper airway obstruction, stertor, and stridor. In: King, LG (ed) Textbook of Respiratory Disease in Dogs and Cats pp 35–42. Elsevier: St Louis, USA. http://dx.doi.org/10.1016/B978-0-7216-8706-3.50009-8CrossRefGoogle Scholar
Hunt, GB, Perkins, MC, Foster, SF, Barrs, VR, Swinney, GR and Malik, R 2002 Nasopharyngeal disorders of dogs and cats: a review and retrospective study. Compendium on Continuing Education for the Practicing Veterinarian 24(3): 184–200Google Scholar
Ireland, JL, Clegg, PD, McGowan, CM, McKane, SA, Chandler, KJ and Pinchbeck, GL 2012 Comparison of owner-reported health problems with veterinary assessment of geriatric horses in the United Kingdom. Equine Veterinary Journal 44: 94–100. http://dx.doi.org/10.1111/j.2042-3306.2011.00394.xCrossRefGoogle ScholarPubMed
Kennel Club 2007 Top twenty breeds in registration order for the years 2007 and 2008. Available at http://www.thekennelclub. org.uk/download/5675/2007-2008-Top-20.pdf. (Accessed 1 June 2011)Google Scholar
Kennel Club 2008 Fit for Function Fit for Life. Available at http://www.fitforfunction.org.uk/. (Accessed 1 June 2011)Google Scholar
Kennel Club 2009a Pug Breed Standard. Available at http://www.thekennelclub.org.uk/item/198. (Accessed 1 June 2011)Google Scholar
Kennel Club 2009b Japanese Chin Breed Standard. Available at http://www.thekennelclub.org.uk/item/190. (Accessed 1 June 2011)Google Scholar
Kennel Club 2010a Bulldog Breed Standard. Available at http://www.thekennelclub.org.uk/item/155. (Accessed 1 June 2011)Google Scholar
Kennel Club 2010b Top twenty breeds in registration order for the years 2009 and 2010. Available at http://www.thekennel club.org.uk/download/7748/Top-20.pdf. (Accessed 1 June 2011)Google Scholar
Kennel Club 2011 Breed Watch: Pekingese. Available at http://www.the-kennel-club.org.uk/services/public/breed/watch/display.aspx?breed=Pekingese. (Accessed 1 June 2011)Google Scholar
Knecht, CD 1979 Upper airway obstruction in brachycephalic dogs. Compendium on Continuing Education for the Practicing Veterinarian 1: 25–30Google Scholar
Koch, DA, Arnold, S, Hubler, M and Montavon, PM 2003 Brachycephalic syndrome in dogs. Compendium on Continuing Education for the Practicing Veterinarian 25: 48Google Scholar
Lascelles, BDX and Main, CJ 2002 Surgical trauma and chronically painful conditions: within our comfort level but beyond theirs? Journal of the American Veterinary Medical Association 221: 215–222. http://dx.doi.org/10.2460/javma.2002.221.215CrossRefGoogle Scholar
Laurence, C 2009 Balancing pedigree dog breed standards and animal welfare — is it possible? Veterinary Record 164: 481–482Google Scholar
Leonard, HC 1956 Surgical relief for stenotic nares in a dog. Journal of the American Veterinary Medical Association 128: 530Google Scholar
Leonard, HC 1960 Collapse of the larynx and adjacent structures in the dog. Journal of the American Veterinary Medical Association 137: 360–363Google ScholarPubMed
McGreevy, PD and Nicholas, FW 1999 Some practical solutions to welfare problems in dog breeding. Animal Welfare 8: 329–341Google Scholar
Milne, E 2007 The Truth About Cats and Dogs. Book Guild Publishing: Brighton, UKGoogle Scholar
Monnet, E 2003 Brachycephalic airway syndrome. In: Slatter, D (ed) Textbook of Small Animal Surgery. WB Saunders: Philadelphia, USAGoogle Scholar
Njikam, IN, Huault, M, Pirson, V and Detilleux, J 2009 The influence of phylogenic origin on the occurrence of brachycephalic airway obstruction syndrome in a large retrospective study. The International Journal of Applied Research in Veterinary Medicine 7: 138–143Google Scholar
Ott, RS 1996 Animal selection and breeding techniques that create diseased populations and compromise welfare. Journal of the American Veterinary Medical Association 208: 1969–1974Google ScholarPubMed
Peyer, N 1997 Die Beurteilung zuchtbedingter Defekte bei Rassehunden in tierschutzerischer Hinsicht. Dissertation of Veterinary Medicine, University of Bern, Switzerland. [Title translation: Assessing breeding-related defects in purebred dogs for their relevance in animal protection]Google Scholar
Pink, JJ, Doyle, RS, Hughes, JML, Tobin, E and Bellenger, CR 2006 Laryngeal collapse in seven brachycephalic puppies. Journal of Small Animal Practice 47: 131–135CrossRefGoogle ScholarPubMed
Pollinger, JP, Bustamante, CD, Fledel-Alon, A, Schmutz, S, Gray, MM and Wayne, RK 2005 Selective sweep mapping of genes with large phenotypic effects. Genome Research 15: 1809–1819CrossRefGoogle ScholarPubMed
Poncet, CM, Dupre, GP, Freiche, VG, Estrada, MM, Poubanne, YA and Bouvy, BM 2005 Prevalence of gastrointestinal tract lesions in 73 brachycephalic dogs with upper respiratory syndrome. Journal of Small Animal Practice 46: 273–279CrossRefGoogle ScholarPubMed
Purebred Breeders 2011 Lifetime Guarantee: Terms and Conditions of Sale. Available at http://www.purebredbreeders.com/puppypaperwork.pdf. (Accessed 1 June 2011)Google Scholar
Riecks, TW, Birchard, SJ and Stephens, JA 2007 Surgical correction of brachycephalic syndrome in dogs: 62 cases (1991–2004). Journal of the American Veterinary Medical Association 230: 1324–1328. http://dx.doi.org/10.2460/javma.230.9.1324CrossRefGoogle Scholar
Schlotthauer, CF 1929 Congenital defects in the stomach of a dog. Journal of the American Veterinary Medical Association 75: 370–371Google Scholar
Serpell, JA 2002 Anthropomorphism and anthropomorphic selection beyond the ‘Cute Response’. Society and Animals 10: 437–454. http://dx.doi.org/10.1163/156853002320936926CrossRefGoogle Scholar
Singleton, WB 1962 Partial velum palatiectomy for relief of dyspnea in brachycephalic breeds. Journal of Small Animal Practice 3: 215–216. http://dx.doi.org/10.1111/j.1748-5827.1962.tb04190.xCrossRefGoogle Scholar
Stafford, MS and Martin, M 2008 Investigation of dyspnoea in dogs. In Practice 30: 558–666. http://dx.doi.org/10.1136/inpract.30.10.558CrossRefGoogle Scholar
Steiger, A 2005 Breeding and welfare of cats. In: Rochlitz, I (ed) The Welfare of Cats. Springer: Heidelberg, Germany. http://dx.doi.org/10.1007/978-1-4020-3227-1_10CrossRefGoogle Scholar
Stockard, CR 1941 The genetic and endocrinic basis for differences in form and behavior: as elucidated by studies of contrasted pure-line dog breeds and their hybrids. Animal Anatomical Memoirs No 19. The Wistar Institute of Anatomy and Biology: Philadelphia, USAGoogle Scholar
Sutter, N, Mosher, D, Gray, M and Ostrander, E 2008 Morphometrics within dog breeds are highly reproducible and dispute Rensch's rule. Mammalian Genome 19: 713–723. http://dx.doi.org/10.1007/s00335-008-9153-6CrossRefGoogle ScholarPubMed
The Boyd Group 1999 Genetic engineering: animal welfare and ethics. A discussion paper from the Boyd Group. Available at http://www.boyd-group.demon.co.uk/genmod.htm. (Accessed 1 June 2011)Google Scholar
Torrez, CV and Hunt, GB 2006 Results of surgical correction of abnormalities associated with brachycephalic airway obstruction syndrome in dogs in Australia. Journal of Small Animal Practice 47: 150–154. http://dx.doi.org/10.1111/j.1748-5827.2006.00059.xCrossRefGoogle ScholarPubMed
Trader, RL 1949 Nose operation. Journal of the American Veterinary Medical Association 114: 210–211Google Scholar
UFAW 2011 Genetic welfare problems of companion animals: an information resource for prospective pet owners and breeders. Available at http://www.ufaw.org.uk/geneticwelfareproblems.php. (Accessed 1 June 2011)Google Scholar
Wegner, W 1993 Tierschutzrelevante Misstande in der Kleintierzucht- der 11b des Tierschutzgesetzes greift nicht. Tierarzliche Umschau 48: 213–222. [Title translation: Relevant animal welfare abuses in small animal breeding]Google Scholar
Wykes, PM 1991 Brachycephalic airway obstructive syndrome. Problems in Veterinary Medicine 3: 188–197Google ScholarPubMed