581,392 research outputs found
The New Zealand Police dogs : a thesis presented in partial fulfilment of the requirements for the degree of Master of Veterinary Studies in Animal Science at Massey University
This study aimed to identify characteristics of dogs to be used by the New Zealand Police Section for their dog breeding and selection programs. Only one scientific paper has been published on selecting dogs specifically for police dog work. Currently, no statistical analysis has been conducted on any of the New Zealand Police Dog Section's data. A questionnaire on all aspects of police dog work was sent to the 120 operational police dog handlers working in New Zealand. The majority of handlers rated their dog high for a number of traits and areas of police dog work but their ideal dog rated very high for the same traits. The handlers ranked from highest to lowest the traits 'prey drive', 'trainability', 'activity', 'obedience', 'playfulness', 'independence' and 'aggressiveness'. This gives an indication of the relative emphasis that should be given to the traits in a selection program. Improved stud selection, better monitored foster homes, more consistency between regions and the training centre and having more dogs for selection are improvements that can be made. Annual reports from dog trials for the years 1997 to 2000 were analysed by ANOVA to enable the calculation of repeatabilities for each activity. The activities 'heel free', 'retrieve', 'down stay', 'sendaway', 'recall and redirection', 'distance control', 'speak on command', 'track', 'article search', 'passive attack', 'chase and recall', 'chase and attack', and 'control' were measured in all four annual reports. The activity 'search and escort' was measured in 1999 and 2000. The highest repeatability (0.48) was for 'speak on command' and the lowest repeatability (0.03) was 'track'. There were insufficient data to enable the estimation of heritability values. During the annual trials each activity should be separated into handler performance and dog performance to give an indication of the performance of the dog alone. If the traits essential for each trial activity were identified and measured when the activity was being tested then a repeatability study on the trait alone could be conducted. This report identifies several areas where changes in trait definition and the collection of information could be used to improve the efficiency of the police dog breeding program
Incidence and impact of dog attacks on guide dogs in the UK: an update
Data on dog attacks on Guide Dogs’ stock were reviewed to investigate the characteristics of the attacks. An average of 11.2 attacks occurred each month. Nearly all of the attacks occurred in public areas, 68.4 per cent of victim dogs were qualified guide dogs and 55.5 per cent of victim dogs were working in harness when they were attacked. Guide Dogs’ stock were injured in 43.2 per cent of attacks and veterinary costs for attacks were estimated at £34,514.30. Over 40 per cent of qualified guide dogs’ working ability was affected and >20 per cent of qualified guide dogs required some time off from working after a dog attack. Twenty dogs were permanently withdrawn from the Guide Dogs’ programme as a result of dog attacks, 13 of which were qualified and working with guide dog owners at the time of the withdrawal; this resulted in a financial cost of >£600,000 to the charity. More importantly perhaps, temporary and permanent withdrawals have a significant impact upon the mobility and independence of guide dog owners and in many cases significantly impacted their emotional well-being
Fault tolerant hypercube computer system architecture
A fault-tolerant multiprocessor computer system of the hypercube type comprising a hierarchy of computers of like kind which can be functionally substituted for one another as necessary is disclosed. Communication between the working nodes is via one communications network while communications between the working nodes and watch dog nodes and load balancing nodes higher in the structure is via another communications network separate from the first. A typical branch of the hierarchy reporting to a master node or host computer comprises, a plurality of first computing nodes; a first network of message conducting paths for interconnecting the first computing nodes as a hypercube. The first network provides a path for message transfer between the first computing nodes; a first watch dog node; and a second network of message connecting paths for connecting the first computing nodes to the first watch dog node independent from the first network, the second network provides an independent path for test message and reconfiguration affecting transfers between the first computing nodes and the first switch watch dog node. There is additionally, a plurality of second computing nodes; a third network of message conducting paths for interconnecting the second computing nodes as a hypercube. The third network provides a path for message transfer between the second computing nodes; a fourth network of message conducting paths for connecting the second computing nodes to the first watch dog node independent from the third network. The fourth network provides an independent path for test message and reconfiguration affecting transfers between the second computing nodes and the first watch dog node; and a first multiplexer disposed between the first watch dog node and the second and fourth networks for allowing the first watch dog node to selectively communicate with individual ones of the computing nodes through the second and fourth networks; as well as, a second watch dog node operably connected to the first multiplexer whereby the second watch dog node can selectively communicate with individual ones of the computing nodes through the second and fourth networks. The branch is completed by a first load balancing node; and a second multiplexer connected between the first load balancing node and the first and second watch dog nodes, allowing the first load balancing node to selectively communicate with the first and second watch dog nodes
Spotlight on Assistance Dogs-Legislation, Welfare and Research
Assistance dogs are a very diverse group of working dogs that are trained to assist humans with different types of disabilities in their daily lives. Despite these dogs' value for humankind, research on their welfare status, cognitive and behavioural capacities, selection criteria for the best fitting individuals, effective training and management practices, and genetic issues are so far lacking. This review highlights the need to address these topics and to promote progress in legal issues around assistance dogs. The topic of assistance dogs is approached comprehensively by outlining the current status of knowledge in three different dimensions: (1) the legal dimension, outlining important legal issues in the EU and Australia; (2) the welfare dimension; and (3) the dimension of research, covering assistance dog selection and training. For each of these three dimensions, we discuss potential approaches that can be implemented in the future in order to support assistance dog working performance, to protect the dogs' welfare, and to improve our knowledge about them. Additionally, there remain many legal issues, such as the presence of assistance dogs in public areas, the resolution of which would benefit both the assistance dog and the owner with disability
Demography and disorders of German Shepherd Dogs under primary veterinarycare in the UK
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. Demographic, mortality and clinical diagnosis data on GSDs were extracted and reported
Moving from information and collaboration to action: report from the 3rd International Dog Health Workshop, Paris in April 2017
Abstract 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. The International Partnership for Dogs (IPFD), together with an alternating host organization, holds biennial meetings called the International Dog Health Workshops (IDHW). The Société Centrale Canine (French Kennel Club) hosted the 3rd IDHW, in Paris, in April, 2017. These meetings bring together a wide range of stakeholders in dog health, science and welfare to improve international sharing of information and resources, to provide a forum for ongoing collaboration, and to identify specific needs and actions to improve health, well-being and welfare in dogs. Results The workshop included 140 participants from 23 countries and was structured around six important issues facing those who work to improve dog health. These included individualized breed-specific strategies for health and breeding, extreme conformations, education and communication in relation to antimicrobial resistance, behavior and welfare, genetic testing and population-based evidence. A number of exciting actions were agreed during the meeting. These included setting up working groups to create tools to help breed clubs accelerate the implementation of breed-health strategies, review aspects of extreme conformation and share useful information on behavior. The meeting also heralded the development of an online resource of relevant information describing quality measures for DNA testing. A demand for more and better data and evidence was a recurring message stressed across all themes. Conclusions The meeting confirmed the benefits from inclusion of a diverse range of stakeholders who all play relevant and collaborative parts to improve future canine health. Firm actions were set for progress towards improving breed-related welfare. The next international workshop will be in the UK in 2019 and will be organized by the UK Kennel Club
Dog breed selection and factors that shape them : a thesis presented in partial fulfilment of the requirements for the degree of Master of Science in Zoology at Massey University, Palmerston North, New Zealand
The aim of this research was to describe human perceptions of dog breeds, New Zealand national dog demographics, and the relationship between aesthetic appeal and physical conformation of dog breeds. Methods included a literature review, a review of New Zealand dog registration data, and a survey of 131 university students from first and third year veterinary science and first year marketing on the relative appeal of unmodified and modified dog images.
By reviewing literature on human preferences towards dog characteristics breeds were selected that would be most likely to generate the ideal positive and ideal negative first impressions. Characteristics were examined by compiling the strongest positive and negative preferences, opinions, and reports. The results indicated that the ideal breed for a positive impression would be a Labrador Retriever of pale or yellow colour. The ideal breed for the negative impression was Rottweiler. The German Shepherd Dog was also notable for creating a negative impression.
This study used datasets from the New Zealand National Dog Database (NZDD) (2013-2014) and New Zealand Kennel Club (NZKC) (2005-2014) to describe the New Zealand dog population. Results highlight a large difference between the two datasets in regards to rankings and reporting. The NZDD and NZKC top 10 ranked purebreds differed in that the NZDD top 10 contained more working breeds that are utilized in livestock farming (e.g. Huntaway). According to the NZDD data, most dogs in New Zealand are purebred (over 65%). The Labrador Retriever was the most commonly registered breed in both datasets. The kennel club data can be used for pedigree dog information but, unlike the NZDD, not national demographic information.
The study also investigated, using a survey with associated image ranking, whether academic programme or year of university study influenced the scoring of different dogs based on their physical appeal. The breeds presented in image sets (original and altered) were Belgian Shepherd (Malinois), Border Collie, Dachshund, French Bulldog, German Shepherd (Alsatian), and Jack Russell Terrier. Neither academic programme nor year of university study influenced scoring of five of the six image sets (all but the French Bulldog). Results from the French Bulldog image set indicated fourth year veterinary science students found the images with less exaggeration more appealing than either first year group. Also female participants preferred less exaggeration compared to male participants. For all six breeds the less exaggerated variants within the set of images were considered more appealing by all participants. These findings indicate that there was a preference among the students surveyed for dogs with physical characteristics that were less exaggerated and potentially less detrimental to the health and welfare of the animal
Differences in trait impulsivity indicate diversification of dog breeds into working and show lines
Impulsiveness describes the inability to inhibit behaviour in the presence of salient cues. Trait-level impulsivity exists on a continuum and individual differences can be adaptive in different contexts. While breed related differences in behavioural tendency in the domestic dog (Canis familiaris) are well established, the phenomenon within lines of a breed which have been selected more recently is not well studied, although it may challenge the popular notion of breed-typical behaviour. We describe differences in impulsivity between and within two dog breeds with working and show lines selected for different levels of impulsivity: Border Collies (herding work) and Labrador Retrievers (gun work). Recent show line selection might have lessened differences in impulsivity between breeds. We tested this hypothesis on a dataset of 1161 individuals assessed using a validated psychometric tool (Dog Impulsivity Assessment Scale - DIAS). Collies were more impulsive on average, consistent with the original purpose of breed selection. Regarding line, working Collies differed from working Labradors, but show lines from the two breeds were not significantly different. Altered or relaxed artificial selection for behavioural traits when appearance rather than behaviour become the primary focus for breeders may reduce average differences in impulsivity between breeds in show lines
Everyday behaviour in dogs
The absolute majority of dogs are kept as companion animals. Dogs kept as family pets are frequently exposed to noisy and crowded environments, and often have to interact with unfamiliar dogs and humans. In Sweden, we have a long history of recording behaviour in dogs on a large scale. The Swedish Working Dog Association (SBK) has, since 1989, carried out a standardized behavioural test called Dog Mentality Assessment (DMA). Results from the DMA can be condensed into five personality traits: playfulness, sociability, curiosity/fearlessness, chase-proneness and aggression.
The aim of this thesis was to investigate the possibility to use information from the DMA to select for improved everyday life in dogs and to study the genetic background of everyday behaviour. This was done by estimating factors affecting everyday life behaviour as well as the genetic background of behaviour assessed either through a questionnaire or measured in the DMA.
In the first study (I) we investigated factors affecting everyday behaviour in 20 dog breeds. The analysis was based on records from a total of 3,591 dogs. In the second study (II) we estimated genetic parameters for behaviour in the Rough Collie both for everyday behaviour assessed through a questionnaire and for behaviour assessed in the DMA. The analysis included records for 1,738 dogs on everyday behaviour and records for 2,953 dogs from the DMA.
Results from the studies showed that age, sex, breed and breed group (working vs non-working breeds) had a significant effect on everyday behaviour. Working dog breeds were overall more interested in playing with humans and more trainable. Phenotypic correlations showed, for example, that more fearful dogs were more aggressive and dogs that were more eager to play with humans were easier to train. The estimated heritabilities for both everyday behaviour and DMA behaviour traits ranged between 0.06 and 0.36. The genetic correlations between everyday behaviour traits and DMA results indicate that the DMA could be used as an effective tool for selection of everyday behaviour in the Rough Collie
Kamiah’s Kool Vests: Preventing Heat Stress in Service Dogs
Service dogs are individually trained dogs that are required to perform tasks for people with disabilities. Examples include guiding persons who are blind, alerting the deaf, pulling a wheelchair, calming a person with Post Traumatic Stress Disorder (PTSD) and performing other important duties. Service dogs are working animals, not pets. The health and safety of both the owner and the dog depend on the dog\u27s ability to focus, resist distraction, and perform its assigned functions at all times. Service dogs may become overexposed to heat when working in hot outdoors environments. This can negatively impact their health and their ability to perform critical service functions safely. To protect service dogs from such a hazard, a novel protective vest was developed that can reduce solar heat radiation exposure by 65% while imposing not measurable insulation heat gain. This new design was evaluated in the laboratory and a prototype worn by a service dog. The presentation will describe the design of the vest, the methods and procedures used in the laboratory to evaluate the performance of the vest under controlled conditions, and will summarize the outcome. Recommendations for use of such a heat protective vest for service dogs will be offered
- …
