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Canine Genetics and Epidemiology

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https://www.readbyqxmd.com/read/30377534/labrador-retrievers-under-primary-veterinary-care-in-the-uk-demography-mortality-and-disorders
#1
Paul D McGreevy, Bethany J Wilson, Caroline S Mansfield, Dave C Brodbelt, David B Church, Navneet Dhand, Ricardo J Soares Magalhães, Dan G O'Neill
Background: Labrador retrievers are reportedly predisposed to many disorders but accurate prevalence information relating to the general population are lacking. This study aimed to describe demography, mortality and commonly recorded diseases in Labrador retrievers under UK veterinary care. Methods: The VetCompass™ programme collects electronic patient record data on dogs attending UK primary-care veterinary practices. Demographic analysis covered all33,320 Labrador retrievers in the VetCompass™ database under veterinary care during 2013 while disorder and mortality data were extracted from a random sample of 2074 (6...
2018: Canine Genetics and Epidemiology
https://www.readbyqxmd.com/read/30349728/longevity-and-mortality-in-kennel-club-registered-dog-breeds-in-the-uk-in-2014
#2
T W Lewis, B M Wiles, A M Llewellyn-Zaidi, K M Evans, D G O'Neill
Background: The domestic dog is one of the most diverse mammalian species, exhibiting wide variations in morphology, behaviour and morbidity across breeds. Therefore, it is not unexpected that breeds should also exhibit variation in mortality and longevity. While shorter longevity per se may not necessarily be a welfare issue, a generally foreshortened lifespan in a breed that is accompanied by a high prevalence of a particular cause of death may reveal potentially serious welfare concerns and highlight scope to improve breed welfare...
2018: Canine Genetics and Epidemiology
https://www.readbyqxmd.com/read/30279993/lipoma-in-dogs-under-primary-veterinary-care-in-the-uk-prevalence-and-breed-associations
#3
Dan G O'Neill, Caroline H Corah, David B Church, Dave C Brodbelt, Lynda Rutherford
Background: Lipomas are masses of mesenchymal origin, comprising of adipocytes, and are often clinically unremarkable but can be alarming to owners. Although lipomas are reportedly common in dogs, no studies have specifically investigated risk factors associated with their occurrence. This study was a large-scale retrospective analysis of electronic patient records of dogs attending practices participating in VetCompass™. Univariable and multivariable logistic regression methods were used to evaluate associations between risk factors and primary-care veterinary diagnosis of lipoma...
2018: Canine Genetics and Epidemiology
https://www.readbyqxmd.com/read/30123514/work-type-influences-perceived-livestock-herding-success-in-australian-working-kelpies
#4
Jonathan B Early, Elizabeth A Arnott, Lisa J Mascord, Diane van Rooy, Paul D McGreevy, Claire M Wade
Background: Working dog handlers and breeders have very different behavioural requirements in the animals that they employ for managing livestock. The Australian Working Kelpie breed may be used in several working contexts, notably yards, paddocks and a combination of both. The working context influences the skillsets required and gives rise to three corresponding work-types: Yard, Paddock and Utility Kelpies. In particular, dogs used for working stock in the confines of yards and trucks interact with stock more forcefully than those mustering in larger areas (paddocks) where they can herd stock effectively from a greater distance...
2018: Canine Genetics and Epidemiology
https://www.readbyqxmd.com/read/29750111/demography-and-disorders-of-the-french-bulldog-population-under-primary-veterinary-care-in-the-uk-in-2013
#5
Dan G O'Neill, Lauren Baral, David B Church, Dave C Brodbelt, Rowena M A Packer
Background: Despite its Gallic name, the French Bulldog is a breed of both British and French origin that was first recognised by The Kennel Club in 1906. The French Bulldog has demonstrated recent rapid rises in Kennel Club registrations and is now (2017) the second most commonly registered pedigree breed in the UK. However, the breed has been reported to be predisposed to several disorders including ocular, respiratory, neurological and dermatological problems. The VetCompass™ Programme collates de-identified clinical data from primary-care veterinary practices in the UK for epidemiological research...
2018: Canine Genetics and Epidemiology
https://www.readbyqxmd.com/read/29744112/letter-to-the-editor-regarding-an-autosomal-recessive-mutation-in-scl24a4-causing-enamel-hypoplasia-in-samoyed-and-its-relationship-to-breed-wide-genetic-diversity
#6
Frank W Nicholas, Cathryn Mellersh, Tom Lewis
No abstract text is available yet for this article.
2018: Canine Genetics and Epidemiology
https://www.readbyqxmd.com/read/29610669/nationwide-genetic-testing-towards-eliminating-lafora-disease-from-miniature-wirehaired-dachshunds-in-the-united-kingdom
#7
Saija Ahonen, Ian Seath, Clare Rusbridge, Susan Holt, Gill Key, Travis Wang, Peixiang Wang, Berge A Minassian
Background: Canine DNA-testing has become an important tool in purebred dog breeding and many breeders use genetic testing results when planning their breeding strategies. In addition, information obtained from testing of hundreds dogs in one breed gives valuable information about the breed-wide genotype frequency of disease associated allele. Lafora disease is a late onset, recessively inherited genetic disease which is diagnosed in Miniature Wirehaired Dachshunds (MWHD). It is one of the most severe forms of canine epilepsy leading to neurodegeneration and, frequently euthanasia within a few years of diagnosis...
2018: Canine Genetics and Epidemiology
https://www.readbyqxmd.com/read/29403647/assessing-the-relative-importance-of-health-and-conformation-traits-in-the-cavalier-king-charles-spaniel
#8
Katrien Wijnrocx, Liesbeth François, Peter Goos, Nadine Buys, Steven Janssens
Background: The selection of a future breeding dog is a complicated task, in which disease characteristics and different traits have to be combined and weighed against one another. Truncation selection, that is the exclusion of affected animals, may be very inefficient when selecting on a large number of traits, and may result in a reduction of the genetic diversity in a population or breed. Selection could be facilitated by the use of a selection index that combines multiple traits or breeding values into one score...
2018: Canine Genetics and Epidemiology
https://www.readbyqxmd.com/read/29234500/moving-from-information-and-collaboration-to-action-report-from-the-3rd-international-dog-health-workshop-paris-in-april-2017
#9
Dan G O'Neill, Sylvia F A Keijser, Åke Hedhammar, Caroline Kisko, Gregoire Leroy, Aimée Llewellyn-Zaidi, Sofia Malm, Patricia N Olson, Rowena M A Packer, Jean Francois Rousselot, Ian J Seath, Jason W Stull, Brenda N Bonnett
Background: Breed-related health problems in dogs have received increased focus over the last decade. Responsibility for causing and/or solving these problems has been variously directed towards dog breeders and kennel clubs, the veterinary profession, welfare scientists, owners, regulators, insurance companies and the media. In reality, all these stakeholders are likely to share some responsibility and optimal progress on resolving these challenges requires all key stakeholders to work together...
2017: Canine Genetics and Epidemiology
https://www.readbyqxmd.com/read/29209506/border-terriers-under-primary-veterinary-care-in-england-demography-and-disorders
#10
Dan G O'Neill, Elisabeth C Darwent, David B Church, Dave C Brodbelt
Background: The Border Terrier is a working terrier type that is generally considered to be a relatively healthy and hardy breed. This study aimed to characterise the demography and common disorders of Border Terriers receiving veterinary care in England using de-identified electronic patient record data within the VetCompass™ Programme. Results: Annual birth proportion for Border Terriers showed a decreasing trend from 1.46% in 2005 to 0.78% in 2014. The median adult bodyweight for males (10...
2017: Canine Genetics and Epidemiology
https://www.readbyqxmd.com/read/29201384/rottweilers-under-primary-veterinary-care-in-the-uk-demography-mortality-and-disorders
#11
Dan G O'Neill, Wee Yin Seah, David B Church, Dave C Brodbelt
Background: Rottweilers are reportedly predisposed to many disorders but accurate prevalence information relating to the general population are lacking. This study aimed to describe demography, mortality and commonly recorded diseases in Rottweilers under UK veterinary care. Clinical health records within the VetCompass Programme were explored for disorders recorded during 2013. Results: Rottweilers comprised 5321 (1.17%) of 455,557 dogs attending 304 clinics. Annual proportional birth rates dropped from 1...
2017: Canine Genetics and Epidemiology
https://www.readbyqxmd.com/read/29201383/an-autosomal-recessive-mutation-in-scl24a4-causing-enamel-hypoplasia-in-samoyed-and-its-relationship-to-breed-wide-genetic-diversity
#12
Niels C Pedersen, Bonnie Shope, Hongwei Liu
Background: Pure breeding of dogs has led to over 700 heritable disorders, of which almost 300 are Mendelian in nature. Seventy percent of the characterized mutations have an autosomal recessive mode of inheritance, indicative of positive selection during bouts of inbreeding primarily for new desired conformational traits. Samoyed suffer from several common complex genetic disorders, but up to this time only two X-linked and one autosomal dominant disorder have been identified. Previous studies based on pedigrees and SNP arrays have concluded that Samoyed breeders have done a good job in maintaining genetic diversity and avoiding excessive inbreeding...
2017: Canine Genetics and Epidemiology
https://www.readbyqxmd.com/read/29177055/population-characteristics-of-golden-retriever-lifetime-study-enrollees
#13
Melissa Simpson, Erin Searfoss, Sharon Albright, Diane E Brown, Barbara Wolfe, Nancy K Clark, Susan E McCann, David Haworth, Mike Guy, Rod Page
Background: Studying cancer and other diseases poses a problem due to their protracted and multifactorial nature. Prospective studies are useful to investigate chronic disease processes since collection of lifestyle information, exposure data and co-incident health issues are collected before the condition manifests. The Golden Retriever Lifetime Study is one of the first prospective studies following privately-owned dogs throughout life to investigate the incidence and risk factors for disease outcomes, especially cancer...
2017: Canine Genetics and Epidemiology
https://www.readbyqxmd.com/read/29085643/lumbosacral-stenosis-in-labrador-retriever-military-working-dogs-an-exomic-exploratory-study
#14
Meenakshi Mukherjee, Jeryl C Jones, Jianbo Yao
BACKGROUND: Canine lumbosacral stenosis is defined as narrowing of the caudal lumbar and/or sacral vertebral canal. A risk factor for neurologic problems in many large sized breeds, lumbosacral stenosis can also cause early retirement in Labrador retriever military working dogs. Though vital for conservative management of the condition, early detection is complicated by the ambiguous nature of clinical signs of lumbosacral stenosis in stoic and high-drive Labrador retriever military working dogs...
2017: Canine Genetics and Epidemiology
https://www.readbyqxmd.com/read/29046813/single-nucleotide-polymorphisms-and-microsatellites-in-the-canine-glutathione-s-transferase-pi-1-gstp1-gene-promoter
#15
James Sacco, Sarah Mann, Keller Toral
BACKGROUND: Genetic polymorphisms within the glutathione S-transferase P1 ( GSTP1 ) gene affect the elimination of toxic xenobiotics by the GSTP1 enzyme. In dogs, exposure to environmental chemicals that may be GSTP1 substrates is associated with cancer. The objectives of this study were to investigate the genetic variability in the GSTP1 promoter in a diverse population of 278 purebred dogs, compare the incidence of any variants found between breeds, and predict their effects on gene expression...
2017: Canine Genetics and Epidemiology
https://www.readbyqxmd.com/read/28932406/large-scale-survey-to-estimate-the-prevalence-of-disorders-for-192-kennel-club-registered-breeds
#16
B M Wiles, A M Llewellyn-Zaidi, K M Evans, D G O'Neill, T W Lewis
BACKGROUND: Pedigree or purebred dogs are often stated to have high prevalence of disorders which are commonly assumed to be a consequence of inbreeding and selection for exaggerated features. However, few studies empirically report and rank the prevalence of disorders across breeds although such data are of critical importance in the prioritisation of multiple health concerns, and to provide a baseline against which to explore changes over time. This paper reports an owner survey that gathered disorder information on Kennel Club registered pedigree dogs, regardless of whether these disorders received veterinary care...
2017: Canine Genetics and Epidemiology
https://www.readbyqxmd.com/read/28770095/demography-and-disorders-of-german-shepherd-dogs-under-primary-veterinary-care-in-the-uk
#17
Dan G O'Neill, Noel R Coulson, David B Church, Dave C Brodbelt
BACKGROUND: The German Shepherd Dog (GSD) has been widely used for a variety of working roles. However, concerns for the health and welfare of the GSD have been widely aired and there is evidence that breed numbers are now in decline in the UK. Accurate demographic and disorder data could assist with breeding and clinical prioritisation. The VetCompassTM Programme collects clinical data on dogs under primary veterinary care in the UK. This study included all VetCompassTM dogs under veterinary care during 2013...
2017: Canine Genetics and Epidemiology
https://www.readbyqxmd.com/read/28630713/corneal-ulcerative-disease-in-dogs-under-primary-veterinary-care-in-england-epidemiology-and-clinical-management
#18
Dan G O'Neill, Monica M Lee, Dave C Brodbelt, David B Church, Rick F Sanchez
BACKGROUND: Corneal ulcerative disease (CUD) has the potential to adversely affect animal welfare by interfering with vision and causing pain. The study aimed to investigate for the first time the prevalence, breed-based risk factors and clinical management of CUD in the general population of dogs under primary veterinary care in England. RESULTS: Of 104,233 dogs attending 110 clinics participating within the VetCompass Programme from January 1(st) to December 31(st) 2013, there were 834 confirmed CUD cases (prevalence: 0...
2017: Canine Genetics and Epidemiology
https://www.readbyqxmd.com/read/28560045/correlation-of-neuter-status-and-expression-of-heritable-disorders
#19
Janelle M Belanger, Thomas P Bellumori, Danika L Bannasch, Thomas R Famula, Anita M Oberbauer
BACKGROUND: Gonadectomy, or neutering, is a very common surgery for dogs having many positive effects on behavior, health, and longevity. There are also certain risks associated with neutering including the development of orthopedic conditions, cognitive decline, and a predisposition to some neoplasias. This study was designed specifically to identify if a correlation exists between neuter status and inherited conditions in a large aggregate cohort of dogs representing many different breeds...
2017: Canine Genetics and Epidemiology
https://www.readbyqxmd.com/read/28352471/genetic-mapping-of-principal-components-of-canine-pelvic-morphology
#20
Mark J Fealey, Joy Li, Rebel J E Todhunter, Ursula Krotscheck, Kei Hayashi, Marina J McConkey, Adam R Boyko, Jessica J Hayward, Rory J Todhunter
BACKGROUND: Concentrated breeding effort to produce various body structures and behaviors of dogs to suit human demand has inadvertently produced unwanted traits and diseases that accompany the morphological and behavioral phenotypes. We explored the relationship between pelvic conformation and canine hip dysplasia (HD) because purebred dogs which are predisposed, or not, to HD share common morphologic features, respectively. Thirteen unique bilateral anatomical features of the pelvis were measured on 392 dogs of 51 breeds and 95 mixed breed dogs...
2017: Canine Genetics and Epidemiology
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