Effect of owner experience,living environment,and dog characteristics on owner reports of behavior of Argentine Dogos in Italy

Previous research reported contrasting results on the effect of owner experience on dog behaviors. This may be because of dog breed genetic variability, differences in expectations, management choices, and attitude toward their dogs by owners of dogs of different breeds. A study of a single breed may help provide a better insight into this issue. A convenience sample of 94 participants, owners of 181 Argentine Dogos, was recruited to provide information on their dogs' behaviors through a questionnaire. Participants were classified according to their previous general experience or inexperience with dogs and whether they had previously owned an Argentine Dogo (expert vs. naive owners). Reasons for getting a dog (companionship, guarding, hunting, breeding) and attendance at dog-training classes were also explored. Pearson chi-square tests and binary logistic regressions were used to analyze the data. Previous inexperience with dogs was associated with a higher prevalence of dogs that were fearful of children and unknown dogs. Naive Dogo owners perceived that their dogs were more obedient and friendly toward strangers but aggressive toward children, than those belonging to Argentine Dogo experts. It also appeared that living environment and the dog's age are critical predictors of many outcome variables. Kennel living was found to be predictive of car and food protection, owner-directed aggression and aggression toward children, whereas house living was associated with fear of loud noises. Changes related to the dogs' age were probably related to behavioral development in the dogs. Destructiveness, excessive body licking, and protective aggression were more common in younger dogs, whereas aggression to unknown dogs was more common in older ones. Protective aggression was more common in males, and fear of startling noises was more common in females. Intact dogs showed a higher probability of having attention-getting behavior, and neutered dogs were more fearful of traffic. Our findings are correlative. Even if causative links cannot be made, our findings certainly provide direction for further investigation.     

Relationship between management factors and dog behavior in a sample of Argentine Dogos in Italy

Owners' husbandry choices may affect the expression of dogs' behavior. In this study, the relationship management-behavior was explored in 181 Argentine Dogos owned by 94 dog owners who answered 35 Yes/No questions on their dogs' behavior (e.g., obedience, aggression, and fear) and 10 single-choice questions on dogs' husbandry. The association management-behavior was explored with χ². Kennel-living dogs were more aggressive than house-living ones (food protection, P = 0.017; owner-directed aggression, P = 0.050; stranger-directed aggression, P = 0.031; same-sex dog aggression, P = 0.028), whereas the latter were more obedient (P < 0.001), destructive (P = 0.048) and friendly with people (P = 0.002) and dogs (P < 0.001). Physical punishment was associated with food protection (P = 0.023) and owner-directed aggression (P = 0.026). Dog-showing was inversely associated with pulling on the leash (P = 0.007), and fears of environmental stimuli (i.e., traffic, P = 0.001; startling stimuli, P = 0.031; loud noises, P = 0.018). Frequent play sessions were negatively related to fear of startling stimuli (P = 0.039) and positively to obedience (P < 0.001) and friendliness toward strangers (P = 0.004). Short daily walks were associated with fears of environmental stimuli (startling stimuli, P < 0.001; loud noises, P = 0.033), destructiveness (P = 0.054), low concentration (P = 0.025) and poor results in training sessions (P < 0.001). Obedience training was positively associated with obedience (P < 0.001), mounting people (P = 0.003), aggression to handling (P = 0.002) and food removal (P = 0.041). Without establishing cause–effect relationships between management and behavior, this survey highlights husbandry aspects that need careful evaluation because there are associated with undesirable behaviors (e.g., kennel living) and aspects that may reduce problem behaviors (e.g., daily walks, play sessions, dog shows).     

Aggressive behavior in the English cocker spaniel

A high percentage of aggression problems and a tendency to display noninhibited aggression in the English cocker spaniel (ECS) have been suggested by many authors. The authors of this paper designed a retrospective study to analyze the aggressive behavior of 145 ECSs presented for aggression problems to the Animal Behavior Service at the Barcelona School of Veterinary Medicine's veterinary teaching hospital. Aggressive ECSs were compared with a population of dogs of the same breed presented for a behavior problem other than aggression and with a population of aggressive dogs of other breeds. The most common forms of aggression in the ECS were owner-directed aggression (67.6%), aggression toward unfamiliar people (18.4%), aggression toward unfamiliar dogs (10.1%), and aggression toward family dogs (3.3%).Owner-directed aggression was more common in the ECS than in other breeds, although in similar contexts. In the ECS, the golden coat color was more common in the aggressive dogs than in nonaggressive dogs. ECSs showed impulsive aggression more frequently than aggressive dogs of other breeds. The aim of the study was to analyze cases of aggressive ECSs seen in a referral practice.     

Evaluation of a behavioral assessment questionnaire for use in the characterization of behavioral problems of dogs relinquished to animal shelters

OBJECTIVE: To evaluate a behavioral intake questionnaire in animal shelters for the presence of biased results and assess its use in the characterization of behavioral problems of dogs relinquished to shelters. DESIGN: Cross-sectional study. Animals-54 dogs being relinquished to a shelter and 784 dogs belonging to veterinary clients. Procedure-Owners who were relinquishing their dogs and agreed to complete the behavioral questionnaire were alternately assigned to 1 of 2 groups; participants were aware that information provided would be confidential or nonconfidential (i.e., likely used for adoption purposes). Data from confidential and nonconfidential information groups were compared, and the former were compared with data (collected via the questionnaire) regarding a population of client-owned dogs. RESULTS: Analyses revealed significant differences in 2 areas of reported problem behavior between the confidential and nonconfidential information groups: owner-directed aggression and stranger-directed fear. Compared with client-owned-group data, significantly more relinquished shelter dogs in the confidential information group were reported to have owner-directed aggression, stranger-directed aggression, dog-directed aggression or fear, stranger-directed fear, nonsocial fear, and separation-related behaviors. CONCLUSIONS AND CLINICAL RELEVANCE: Among persons relinquishing dogs to a shelter, those who believed questionnaire responses were confidential reported owner-directed aggression and fear of strangers in their pets more frequently than relinquishers who believed responses were nonconfidential. Confidentiality had no apparent effect on the reporting of other assessed behavioral problems. Results suggest that behavioral questionnaires may sometimes provide inaccurate information in a shelter setting, but the information may still be useful when evaluating behavior of relinquished dogs.     

Evaluation of young and adult dogs' reactivity

Many authors have tested puppies' behavior early to detect adult behavioral disorders. Our pilot study aims to investigate puppies' reactivity toward tolerance of new situations and the consistency of behavior between puppy and adult dog. Seven tests (tunnel, direct looking, sudden noise, retrieving buster-ball, problem solving, bowl removal, and approaching) were used to evaluate the reactivity of 32 German shepherd dogs at 5, 7, and 9 months of age. Among these dogs, 17 were chosen by physical and behavioral traits to continue the training program up to adulthood (choice group) and administered the same tests at the age of 2 years. Through the observation of behaviors, the tests aim to assess sociality, exploratory and retrieving tendency, learning ability, playing aptitude, and tendency toward offensive aggression. The behaviors were ranked by degree of reactivity, and ranks were used as scores. The effects of gender and group on the 5- to 9-month reactivity profiles of all the puppies were estimated with a repeated-measures model. In the choice group, the behavior changes from 9 to 24 months and their dependence on gender were estimated with an analogous model. All puppies became more self-confident between 5 and 9 months. At 9 months, behavior was slightly better in males and in the choice group. Between 9 and 24 months, self-confidence, attentiveness, and ability to solve problems and retrieve objects improved, whereas playfulness decrease. Behaviors at 9 and 24 months showed very low variability, which indicated their very high similarity.     

The prevention of undesirable behaviors in dogs: effectiveness of veterinary behaviorists' advice given to puppy owners

The management of puppies is considered of great importance in raising well-behaved adult dogs. This research aimed to assess the effectiveness of advice provided by a veterinary behaviorist regarding puppy-raising practices.Forty-six puppy owners received advice by a veterinary behaviorist concerning puppy raising during the puppy's first visit to a veterinarian. A control group was composed of 43 different dogs whose owners were not counseled by a veterinary behaviorist during the puppy's first veterinary visit. Owners were interviewed about their dog's behaviors at the time of their 1-year booster vaccination visit. The 89 dogs were clinically healthy, between 11 and 18 months old, 53% females and 47% males, of various or mixed breeds.Dogs whose owners received advice displayed less undesirable behaviors than the control group, such as: house soiling (2% vs 23%; χ² = 19.50; P < .01), mounting (26% vs 49%; χ² = 12.11; P < .05), nonstop playing (0% vs 12%; Fisher's exact test P < .05), mouthing of people (11% vs 37%; χ² = 7.15; P < .01), begging for food (17% vs 42%; χ² = 5.31; P < .05), or demanding food from the table (0% vs 12%; Fisher's exact test P < .05). Moreover, the experimental group showed less aggressive behaviors toward unknown people (26% vs 2%; Fisher's exact test P < .01) and dogs (16% vs 2%; Fisher's exact test P < .05).The advice provided was effective in diminishing the incidence of undesirable behaviors in the dogs studied. The positive effect of a behaviorist's advice is remarkable given that the puppies in the experimental group had remained with their mother and littermates for less than 2 months, which is believed to be a high-risk condition for development of behavioral disorders.     

National survey of owner-directed aggression in English Springer Spaniels

OBJECTIVE: To determine prevalence of owner-directed aggression and identify associated environmental and genetic factors in English Springer Spaniels. DESIGN: Prevalence survey. ANIMALS: 1,053 adult English Springer Spaniels. PROCEDURE: A mail survey was sent to 2,400 randomly selected owners of adult American Kennel Club-registered English Springer Spaniels. Dogs with a history of aggression to family members and familiar humans were compared with dogs without such a history. RESULTS: 1,053 questionnaires (56.1% of the 1,877 delivered) were completed. A history of owner-directed growling or more intense aggression was reported in 510 (48.4%) dogs. Two hundred seventy-seven (26.3%) dogs had bitten a human in the past; 65.2% of bites were directed at familiar (owner or nonowner) adults and children. Variables associated with owner-directed aggression included sex of dog (male), neuter status (neutered, regardless of sex), show or bench lines, age > 4 years, aggression to unfamiliar adults and children, acquisition from a hobby breeder, less responsiveness to obedience cues, and a specific kennel and 1 popular sire from that kennel in a 4-generation pedigree. CONCLUSIONS AND CLINICAL RELEVANCE: Owner-directed aggression in adult English Springer Spaniels was associated with a number of environmental, sex-related, and inherited factors. To reduce the risk of aggression, prospective owners might seek a female, hunting-type English Springer Spaniel from an experienced breeder. However, because risk factors are broad and varied, there are limitations to the extent to which behavior can be predicted and further study is needed of the inheritance of aggression in this breed.     

Leishmania infantum and Neospora caninum simultaneous skin infection in a young dog in Italy.

Leishmania infantum, the agent of canine leishmaniasis in Mediterranean countries, and Neospora caninum, a recently recognized protozoal pathogen in dogs, were diagnosed in a 9-month-old Argentine Dogo dog. Both skin lesions and neurological signs were present. Histopathology of cutaneous lesions revealed a suppurative, diffuse dermatitis with numerous intracellular protozoa. Serology was positive for both L. infantum (1:640) and N. caninum (1:800). Double-label immunohistochemical staining of skin samples with hyperimmune serum from L. infantum-infected dogs was positive for protozoa within macrophages, while the polyclonal antibody specific for N. caninum showed positive reactions for protozoa in endothelial cells and fibroblasts. Transmission electron microscopy (TEM) confirmed the infection with both protozoa. This is, to the authors' knowledge, the first case of simultaneous infection with L. infantum and N. caninum in a dog. It is possible that the immunosuppressive effects of Leishmania infection or long-term steroid therapy may have been a contributing factor to the development of N. caninum in this dog.     

Owner complaints of canine behavior in Iran–A preliminary survey

The current survey assessed 17 common behavioral complaints reported by 234 dog owners attending the Small Animal Hospital, University of Tehran using a questionnaire. According to the results, nearly 95% of dog owners reported at least 1 undesirable behavior in their dogs. Aggression toward other dogs and people, jumping up, and excessive barking were the most common behavioral complaints. Owners of large-breed dogs were more likely to complain about their dogs’ aggressive behaviors toward people/dogs and excessive barking compared with owners of small-breed dogs. Dogs without access to a yard were more likely to show phobia-associated behaviors, fearfulness, and separation-related behaviors, whereas those having access to a yard were more likely to show aggressive behaviors toward people/dogs and excessive barking. Interaction of dogs with people and type of reaction used by owners in response to the behavior were also related with some other behavioral characteristics of the animals.     

Effect of Supplementation With Omega-3 Fatty Acids,Magnesium, and Zinc on Canine Behavioral Disorders: Results of a Pilot Study

Recent discoveries have shown that the chances of a dog developing a behavioral disorder may depend upon a number of factors including nutrition. The current pilot study was designed to provide an assessment of the efficacy of a dietary supplement containing omega-3 fatty acids, magnesium, and zinc on some common behavioral disorders in a population of Iranian domestic dogs. In total, 48 dogs including 6 dogs without any behavior disorder (control group) and 42 dogs with at least 1 common behavioral disorder, namely excessive activity, inappropriate elimination, fearfulness, destructiveness, and aggression toward unfamiliar people and dogs (test group), were given daily oral dose of gelatin capsules of fish oil supplements containing 330 mg eicosapentaenoic acid and 480 mg docosahexaenoic acid. Moreover, all dogs received 12-15 mg/kg of magnesium citrate and 5 mg/kg of zinc sulfate. Data were obtained using a questionnaire that dog owners were invited to fill out 2 times before (Days 0 and 42) and 2 times after the supplement treatment period (Days 84 and 126). The questionnaire asked owners whether their dog had exhibited any of the 6 common behavioral disorders on a 5-point Likert-like scale ranging from 0 (never or very rarely) to 4 (very often). The results showed no significant changes for any of the evaluated behavior disorders scale in the control group. In dogs with behavior disorders, results showed a significant reduction in the median score for the severity of fearfulness (P?=?.0083), destructiveness (P?=?.002), and inappropriate elimination (P < .001). In addition, there were no significant differences in the median score for the severity of excessive activity (P = .162), aggression toward dogs (P = .281), and aggression toward unfamiliar people (P = .09) during the course of the study. Results of the study reported here support the hypothesis that a combination of omega-3 fatty acids, magnesium, and zinc may improve some of the behavioral disorders.     

The effect of breed on age-related changes in behavior and disease prevalence in cognitively normal older community dogs,Canis lupus familiaris

Variation in breed longevity in the dog has led to the inference that large dogs age at a faster rate than small dogs, possibly because of an increased oxidative load. Potential differences in behavioral aging (the rate of age-related decline in cognito-behavioral performance) across breeds represent a significant challenge to veterinarians and scientists. Using data from a large cross-sectional survey of older dog owners, we aimed to identify breed differences in behavioral aging in successfully aged dogs ≥8 years of age. Differences based on longevity (short-lived, <11 years; medium-lived, 11-13 years; and long-lived, >13 years), size (small-sized, <35 cm; medium-sized, 35-55 cm; and large-sized, >55 cm), and breed (pure vs. crossbred) were identified using binary logistic regression. Significant breed differences across longevity group were seen in 2 behavioral responses: dogs drinking >1 L/d (P = 0.001, maximum difference between groups = 16.4%) and dogs showing aggression (P = 0.006, maximum difference between groups = 15.1%). In purebred dogs, 8 responses (P < 0.001-0.008, maximum difference between groups = 8.4%-20%) showed significant differences across size group compared with 1 response, in crossbred dogs (P = 0.008, max difference between groups = 28.4%). Significant differences were observed across longevity group in the prevalence of arthritis (P = 0.014) and across size group in the prevalence of arthritis (P < 0.001) and blindness (P = 0.014). In medium-sized dogs, 2 age × breeding group interactions were seen in ingestive behavior (P = 0.037) and aggression (P = 0.028). In large-sized dogs, 1 age × breeding group interaction was seen in abnormal locomotion (P = 0.025). A consistent direction in the differences identified was not seen across all analyses. In general, these data did not suggest an increased rate of behavioral aging in large, short-lived dogs. It is possible that size-dependent aging affects body systems differently or, alternatively, owner’s management may differ between small and large dogs, resulting in differences in behavior.     

Is breed-specific legislation justified? Study of the results of the temperament test of Lower Saxony

Beginning in July 2000 legislation in Lower Saxony restricted the keeping of bull terriers, American Staffordshire terriers, pit bull terriers, and 11 other breeds. Exemption was possible after attending an especially developed test. The tests analyzed for breed predisposition for excessively aggressive signaling or aggressive behavior in inappropriate situations, differences in behavior between breeds, and factors differentiating biting from nonbiting dogs.The test results of 415 dogs were analyzed. The test consisted of a veterinary examination; a learning test; situations of dog-human, dog-environment, and dog-dog contact; and obedience. Escalation in aggressive behavior was scored using a scale of 1-7. No aggressive behavior (1 on the scale) was shown by 38.07% of the dogs, 61.69% showed aggressive behavior scored as 2 to 5 on the scale, and 0.24% bit without previous threatening signals (6 on the scale).Concerning a score of 1 on the scale, pairwise comparison (chi-square test) showed significant differences between bull terriers and American Staffordshire terriers (P = 0.004), pit bull terriers (P = 0.01), Doberman pinschers (P = 0.003), and rottweilers (P = 0.009). Concerning scores of 2 to 7 on the scale,, no significant differences were found.Ninety-five percent of the animals reacted appropriately in the test situation. Five percent displayed excessive aggressive signaling or aggressive behavior in inappropriate situations. These displays were associated with unusual movements and the dogs' apparent apprehension. Correlation between test results and owners jerking on the leash or misinterpreting their dogs' behavior and dogs trying to elude physical manipulation was found. No significant difference in behavior between breeds was detected.The results show no indication of dangerousness in specific breeds. Justification for specific breed lists in the legislation was not shown.     

Predatory aggression in a German shepherd dog

This article presents a clinical case of predatory aggression that represents a problem for public health. The patient was a 2-year-old male German shepherd referred to the behavior clinic at the School of Veterinary Medicine owing to its aggressive behavior toward people and other dogs. The dog tended to form a pack with the other dogs of the household and killed neighborhood dogs, cats, hens, and rabbits. The presumptive diagnosis was “predatory aggression” associated with “territorial and protective aggression.” The risk analysis determined that the dog should be euthanized. Nevertheless, the owner refused, and hence behavior modification and drug therapy were recommended. A year later, the dog killed again (another dog), indicating that despite the drug and behavioral treatment, it is likely that its predatory aggression will never be resolved.     

Analysis of 1040 cases of canine aggression in a referral practice in Spain

A retrospective study was designed to assess the prevalence and clinical presentation of canine aggression problems in a referral practice in Spain. One thousand forty canine aggression cases seen at the Animal Behavior Clinic (Barcelona School of Veterinary Medicine) were analyzed. Each aggression problem was characterized according to 7 predefined diagnostic categories. Breed and sex-related risk factors were calculated by comparing the aggressive dogs to a control population. Aggression problems were the most common behavior complaint (52.28% of all canine behavior cases). Owner-directed aggression was the most frequent of the aggression complaints (38.55%), followed by aggression towards other dogs (34.85%) and unfamiliar people (21.95%). A mean of 1.4 diagnoses of aggression per dog were established. Social conflict aggression towards family members was the most common diagnostic category (35.34%). Sixty nine per cent of aggressive dogs were males and 31% were females, from which only 11 and 12 percent were neutered respectively. Two breeds, the English cocker spaniel and the Catalan sheepdog, presented a particularly high risk for aggression in the studied population.     

Reciprocal attention of dogs and owners in urban contexts

Laboratory-based studies have shown that paying attention to humans is an important determinant of dogs' behavior. However, there are no data on how gaze is deployed between dogs and owners in non-laboratory conditions. This study aimed at characterizing dogs' and owners' attention to each other in 2 urban contexts, characterized by a different density of dynamic stimuli. Short videos of 176 dog–owner couples walking in streets and squares of the city center (CC) or green areas (GAs) of the center of Padova (Italy) were recorded. Continuous sampling was used for recording when dogs and owners were visually oriented toward their respective partners. These data allowed calculation of the average length of continuous gazes, number of gazes per minute, and the percentage of time in which dogs and owners were oriented toward their partners; also computed were the frequency and duration of mutual gazes. Eighty-three dogs and 32 owners never looked at their reciprocal partners for the entire duration of the video. On average, dogs were oriented to owners for 0.6% of the time and looked at them 0.5 times per minute, in bouts of 0.5 seconds. All parameters of dogs' attention were higher for off-leash dogs in GAs than for on-leash dogs in both GAs and CC. Although such limited attention to owners may reflect the requirements of ongoing action, it also suggests that most dogs do not need to look at their owners during walks, possibly because they are not confronted with situations of uncertainty. Owners were oriented to their dogs for 5.3% of the time and looked at them 1.7 times per minute, in bouts of 1.4 seconds. Owners' attention was lower in CC than in GAs, which may reflect differences between contexts in the number of distracting stimuli or in owners' motivations for looking at their dogs while walking in these different contexts.     

Signalment factors, comorbidity, and trends in behavior diagnoses in dogs: 1,644 cases (1991-2001)

OBJECTIVE: To determine trends in behavior diagnoses; assess the relationship between diagnoses and age, sex, reproductive status, and breed; and evaluate associations between diagnoses within the same dog (comorbidity). DESIGN: Retrospective case series. ANIMALS: 1,644 dogs. PROCEDURES: Medical records of dogs evaluated for behavioral problems were reviewed for breed, sex, reproductive status, consultation year, birth date, and diagnoses. RESULTS: Numbers of dogs with aggression, anxiety, and unruly behavior increased over the course of the study, as did the total number of dogs evaluated for behavioral problems. In general and for aggression, Dalmatians, English Springer Spaniels, German Shepherd Dogs, and mixed-breed dogs were evaluated more often than expected, whereas Labrador Retrievers and Golden Retrievers were evaluated less often than expected. Labrador Retrievers were also underrepresented for anxiety, whereas mixed-breed dogs were overrepresented. Males were overrepresented except for interdog aggression, anxieties, and phobias, whereas females were overrepresented for phobias. Dogs with phobias were evaluated at a median age of 6.5 years, compared with dogs with other problems (median age, 2.5 years). A mean of 1.6 diagnoses/dog was observed, with certain diagnoses clustered. CONCLUSIONS AND CLINICAL RELEVANCE: Results suggested that in dogs, behavioral problems changed over the course of the study; age, sex, and breed distributions varied among diagnoses; and certain diagnoses were likely to occur together.     

Behavior of laboratory beagles towards humans: Assessment in an encounter test and a simulation of experimental situations

Because of the close emotional bonds between the man and the domesticated dog, husbandry of laboratory dogs is regarded with particular interest by the public. The relationship between laboratory dogs and the man is particularly important for animal welfare, and daily contact with caregivers and handlers should not elicit fear in dogs. The aim of this study was to investigate the behaviors of laboratory dogs toward humans. In 4 research facilities, 90 male and female 1- to 10-year-old laboratory beagles of different origins (facility bred or from other origins) were tested in an “encounter test” and a setting that simulated realistically general research situations. No significant differences were observed in the encounter test when the dogs were approached by a familiar caretaker or by an unfamiliar person. Nearly all of the dogs could be caught easily, and they exhibited pronounced interest in and established contacts with both persons. We simulated an experimental manipulation by placing the dogs on a treatment table in an examination room and having them restrained by a familiar caretaker; this resulted in submissive behavior and/or signs of distress in many dogs (e.g., 12% urinated when being lifted onto the examination table and most dogs showed muzzle licking on the table). Multifactorial analysis of variance revealed that, based on most of the calculated scores, the facility-bred dogs were significantly less fearful than those obtained from commercial breeders or from other research facilities. Sex differences were not observed, and younger dogs were significantly more difficult to catch. The data revealed that good relationships were established between the caretakers and the dogs in all 4 research facilities. The facility-bred dogs in particular were friendly and exhibited little fear toward both the familiar and unfamiliar persons.     

Risk factors associated with interdog aggression and shooting phobias among purebred dogs in Denmark

The prevalence of behaviour problems is reported from a questionnaire study among members of the Danish Kennel Club (DKC). In total, 4359 dog owners were included in the analyses. With logistic regression, we analysed four behaviour problems: dominance towards the owner, interdog dominance aggression, separation anxiety and shooting phobia. Compared to Labrador Retrievers, the following breeds and breed groups had higher odds of being reported to have interdog dominance aggression: Belgian Sheepdogs, Dachshunds, Dalmatians, German Shepherds, Hovawarts, Pinschers, Rottweilers, Scent dogs and Spitz dogs. Poodles, retrieving/flushing dogs, Sheepdogs, Spitz dogs and terriers had higher odds of shooting phobia. The odds of interdog dominance aggression were higher among dogs owned by younger dog owners compared to dogs owned by older dog owners. Dogs living in the capital area of Copenhagen had increased odds of interdog dominance aggression as compared to dogs living in other parts of Denmark. Dogs belonging to owners with limited knowledge of the breed before acquiring the dog had higher odds of interdog dominance aggression. Dogs attending obedience training classes had reduced odds of shooting phobia. Dogs belonging to dog breeders had reduced odds of being reported to have the investigated behaviour problems.     

Integration ability of urban free-ranging dogs into adoptive families' environment

In developing countries such as Turkey, problems arising from the growing population of urban free-ranging dogs affect welfare of those dogs and the surrounding community. Urban free-ranging dogs are often not considered as the first choice by adopters because a pre-existing history of indoor life, belonging to a certain breed, and friendly temperament are significant criteria for adoption. Integration ability of these dogs into a family environment is unknown as no detailed studies have been conducted. The aim of this study was to characterize the behavioral characteristics of urban free-ranging dogs in their adoptive families' environment during postadoption period. The data were obtained from questionnaires completed by 75 volunteer owners of urban free-ranging dogs. Most respondents (74.7%) reported that their dogs showed timidity or fear when they first arrived in the home. Yet most owners (69.3%) reported that behaviors of their dogs have changed in a positive way through the postadoption period. The most common behavior problems reported for the dogs were indicated as hyperattachment to the owner (58.7%) and escaping (32.0%). Most owners reported that they did not have a trouble either in house training (72.0%) or in leash training (65.3%) their dogs. Findings of this research indicate that urban free-ranging dogs are adaptable and can adapt to their adoptive families' environment.     

Motor laterality in 4 breeds of dog

The aim of the current study was designed to explore possible breed differences in a basic behavioral phenotype in dogs. It measured paw use during food-retrieval from a cylindrical, hollow, rubber toy to assess motor laterality (pawedness) in 4 breeds of dogs selected for their morphological differences: 45 greyhounds (males n = 23/females n = 22), 47 whippets (15/32), 46 pugs (15/31), and 45 boxers (17/28). A laterality index was calculated from the use of individual paws to restrain the toy during feeding. An association was found between sex and the laterality index (P = 0.035), reflecting a significant bias for left-paw use by entire male dogs and right-paw use by entire female dogs but no sex difference was found in the mean strength of laterality. No significant association was found between age and the laterality index. No breed difference was found in the laterality index (P = 0.423) or the absolute strength of laterality (i.e., the laterality index without direction, P = 0.259). However, important breed differences in the use of the test device emerged. The frequency of simultaneous use of both paws was lowest in pugs (P < 0.0001). In addition, both brachycephalic breeds (pugs and boxers) took less time than the dolichocephalic breeds (the whippets and greyhounds) to complete the criteria of 100 paw-use scores that was set for the laterality test. The absence of breed differences in the laterality index for paw use suggests that the task is a reliable measure of motor laterality in dogs during a food-retrieval task.