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Studies About Dogs


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On 9/23/2017 at 4:18 PM, Ngaire Ingham said:

Agree - my 8 week old pup died within days of the first vaccination of C3


Sorry your pup died.   However many many pups are killed by parvo, and without vaccination the numbers would be staggering.  A lot of testing has been done on vaccines, and the preponderance of evidence says they are safe.

Fake news isn't confined to human politics.  Dogsnaturally is a strongly biased source.  I started checking sources on the article Jed cites.  The first article cited as anti vaccination concludes: "Conclusions/significance: There was no evidence to support an association between routine vaccination and thyroiditis at 
postmortem examination in beagle dogs after repeated vaccination.". I'd suggest checking all the references before believing the article...or blaming vaccination for your puppy's death.

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An interesting podcast.  Interview of a neuroscientist who has done extensive work using MRI to study what goes on in the minds of dogs and other animals.


P.s. this goes off to an animal rights discussion that may bother some.

Edited by sandgrubber
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"Frontiers in Neuroscience published one of the first studies using brain imaging to probe how our canine companions process words they have been taught to associate with objects, conducted by scientists at Emory University. The results suggest that dogs have at least a rudimentary neural representation of meaning for words they have been taught, differentiating words they have heard before from those they have not."

I also considered this question in my small study on sociology, which was written with the help of such essay writing services. And I think that this assumption can be applied to other mammals.


Edited by eterson
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Oh I do love when things become open access to read. These are all open access!


Factors associated with success in guide dog training



Contexts and consequences of dog bite incidents



Dog and owner characteristics affecting the dog–owner relationship



Owner-companion dog interactions: Relationships between demographic variables, potentially problematic behaviours, training engagement and shared activities



Grain free diets for utility dogs during training work: Evaluation of the nutrient digestibility and faecal characteristics




Odor mixture training enhances dogs' olfactory detection of Home-Made Explosive precursors


(I just contributed to a similar detection project!)


Training for eye contact modulates gaze following in dogs



Can you spare 15 min? The measurable positive impact of a 15-min petting session on shelter dog well-being



(Genetics and biochemistry of) Iditarod Sled Dog Race



Factors associated with long-term success in working police dogs



Ability of dogs to detect cows in estrus from sniffing saliva samples



Social factors influencing cortisol modulation in dogs during a strange situation procedure



Electronic training devices: Discussion on the pros and cons of their use in dogs as a basis for the position statement of the European Society of Veterinary Clinical Ethology



Individual and group level trajectories of behavioural development in Border collies



Seizure-alert dogs: a review and preliminary study



No better than flipping a coin: Reconsidering canine behavior evaluations in animal shelters



The quality of the relation between handler and military dogs influences efficiency and welfare of dogs



Dogslife: A cohort study of Labrador Retrievers in the UK



Behavioral and psychological outcomes for dogs sold as puppies through pet stores and/or born in commercial breeding establishments: Current knowledge and putative causes



Inconsistent identification of pit bull-type dogs by shelter staff



Validation of a short odour discrimination test for working dogs



Anxiety and impulsivity: Factors associated with premature graying in young dogs



Performance decline by search dogs in repetitive tasks, and mitigation strategies



Breed, age and gender distribution of dogs with chronic hepatitis in the United Kingdom



Comparison of the effects of different kibble shape on voluntary food intake and palatability of weight loss diets in pet dogs



Aggressive behavior of dogs kept as companion animals: Classification and influence of sex, reproductive status and breed



Relationship between attachment to owners and separation anxiety in pet dogs (Canis lupus familiaris)


Edited by Two Best Dogs!
accidentally posted wasn't done putting links down!
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This is a really interesting one, research is starting to look at breed relevant traits and how they impact their lives as pets


Separation-related behaviour indicates the effect of functional breed selection in dogs (Canis familiaris)

lPéterPongráczSara AlvarezGómezRitaLenkei


The domestication of dogs resulted in several fundamental behavioural changes as compared to their closest wild living relative, the wolf. While these characteristics are considered to be fairly robust across dogs, dog breeds themselves manifest apparently strong behavioural differences. Thus far the functional roots of breed-specific behaviours are still less understood and supported by empirical research. We hypothesized that historical selection for the level of working interaction intimacy with their handlers, may have resulted in the fundamental differences between the main working dog types and their behavioural reactions when separated from their owner. In our study, dogs from breeds that were originally selected for either cooperative or independent work tasks, were tested in a short outdoor separation test. We included dogs with and without owner-reported separation-related disorder (SRD) to both groups. We found that SRD-status and the breed type were in significant association with various stress related behaviours during separation from the owner. Dogs from cooperative working breeds with SRD barked more frequently, meanwhile barking was less prevalent in independent breeds and also in cooperative breeds without owner-reported SRD symptoms. General movement (showing the dogs’ intention to follow or find the disappearing, then absent owner) was uniformly strongest in cooperative dogs with SRD. Whining appeared most frequently in dogs with SRD, regardless to the breed type. These are the first results that support a functional evolutionary framework behind the association of particular dog breeds with the extent of their stressful reactions to separation from their owner.

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There's been proliferation of genetic tests.  Many of the new tests seem to be directed to things that are easy to test, not to important concerns.  It's great to see work on cancers... though useful results may be a long time coming. 


Plain language summary 

Despite the advances in sequencing technology and the success of previous canine whole genome sequencing research, we know of no other publications that report using whole genome sequencing to investigate a genetic risk (aka. a risk that can be passed down through generations) for canine mammary tumors in purebred dogs. This canine cancer type is comparable to human breast cancer, and as a result, genes that are known to influence inherited risk for breast cancer were investigated to determine if those same genes played a role in risk for dogs. We whole genome sequenced 14 purebred dogs from four different breeds; each of the dogs within a breed had been tied back to the same family tree (pedigree). From this study, we have identified mutations in genes BRCA2 and STK11 that could increase risk for those dogs with the mutations. These mutations seem to be present in some breeds more than others, thus affecting risk differently. Furthermore, the large dataset from this research allows for further exploration to find additional mutations that influence their risk for developing canine mammary tumors.

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Keep forgetting to share this one for you guys - open access!




Assisting Decision-Making on Age of Neutering for 35 Breeds of Dogs: Associated Joint Disorders, Cancers, and Urinary Incontinence



Neutering (including spaying) of male and female dogs in the first year after birth has become routine in the U.S. and much of Europe, but recent research reveals that for some dog breeds, neutering may be associated with increased risks of debilitating joint disorders and some cancers, complicating pet owners' decisions on neutering.


There were major breed differences in vulnerability to neutering, both with regard to joint disorders and cancers. In most cases, the caregiver can choose the age of neutering without increasing the risks of these joint disorders or cancers.


Small-dog breeds seemed to have no increased risks of joint disorders associated with neutering, and in only two small breeds (Boston Terrier and Shih Tzu) was there a significant increase in cancers.


To assist pet owners and veterinarians in deciding on the age of neutering a specific dog, guidelines that avoid increasing the risks of a dog acquiring these joint disorders or cancers are laid out for neutering ages on a breed-by-breed and sex basis.


In the results section they split the results out by each breed so you can go straight to the breed you care about most:



English Springer Spaniel

The study population was 52 intact males, 57 neutered males, 37 intact females, and 66 spayed females for a total sample of 212 cases. In males and females left intact, the occurrence of one or more joint disorders was 5 and 8 percent, respectively. Among males and females neutered at various ages, there were no noteworthy increases in joint disorders. The cancers followed occurred in the intact males and females at a 6 percent level, and neutering at any age was not associated with any evident increase in this measure in either sex. In intact females, MC was diagnosed in 6 percent, and for those spayed at 2–8 years, 15 percent. PYO was not reported in any of the intact females. Spaying females at 6–11 mo. was associated with a 13 percent occurrence of UI, which may have reached significance with a larger sample size. Lacking a noticeable occurrence of increased joint disorders or cancers in neutered males, those wishing to neuter should decide on the appropriate age. For females, given the increased risk of UI in those spayed before 1 year, the suggested guideline is to delay spaying until a year of age.


Edited by Two Best Dogs!
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