These results may reflect the actual
breed differences in tail chasing, but may also be the result of a difference in sampling methods between breeds, and activity of breed clubs in sharing information from the study to the dog owners.
This approach is most effective if many breeds are used or if mixed breed animals are used in addition to purebreds to reduce the false positives due to
breed differences in allele frequencies.
[20] Duffy, D.L. et al, «
Breed differences in canine aggression,» Appl.
The above study on Golden Retrievers [14] raised a major question about
breed differences in the effects of neutering, which are relevant for breeders and caregivers of puppies when deciding if, and when, to neuter.
The assumption that «maleness» in at fault also ignores that there are
breed differences in aggression, something we tend to sweep under the carpet nowadays.
In dogs, both the field of view and the degree of binocular vision vary by breed because of
breed differences in position of the eyes.
9) Behavioral differences among breeds of dogs - current status of science - This blog entry analyzes a peer - reviewed research paper that highlights the current status of what is known about
breed differences in behavior based on science (not bloggers, or hysteria).
Titled «
Breed Differences In Canine Aggression,» the 6 year old paper detailed the results of questionnaires distributed among two random samples of dog owners.
Not exact matches
But when they walk into this new
breed of restaurant, they can tell the
difference, and they know that even though they will stand
in line, pay at the counter and carry their food on a tray, they can expect something better.
In the United States, the diet of cows varies from those in Europe and Oceania, and there are also breed difference
In the United States, the diet of cows varies from those
in Europe and Oceania, and there are also breed difference
in Europe and Oceania, and there are also
breed differences.
After all, if there were set and proven ways to
breed the best horses and to train them systematically to win, there would be little
difference of opinion and therefore little interest
in racing.»
Says LeRoy Jolley, trainer of 1980 Kentucky Derby - winning filly Genuine Risk, «The
difference between the two sexes as far as horse racing goes is that a filly only has to win one major stakes race
in her life [to demonstrate exceptional
breeding potential], whereas a colt, to be valuable as a stallion, has to be a top - rated performer almost every race of his life.
A new study finds stress - response
differences in the brains of foxes
bred to be more or less aggressive toward humans.
And also for you dog people, we won't get into it
in much detail, but my column
in this issue, the Antigravity column, I suggest a modest proposal, if you will; that
in order to answer some of the charges of creationists that there is no proof of evolution — we never saw any speciation
in action actually happen, well, why don't we just say, the
differences dog
breeds [are] different species?
Instead we found that age and
differences in breeding quality among individuals are important.
«Our findings give us insights into how fidelity to
breeding and feeding destinations persist over many generations, resulting
in differences between whale populations, and why some populations are more genetically differentiated from the rest.
Booth's study, «Nucleus accumbens neuronal maturation
differences in young rats
bred for low versus high voluntary running behavior,» was published
in the Journal of Physiology.
In the 19th century, evolutionary biologist Charles Darwin pointed out that
breeding led to striking
differences between farm animals and plants and their wild counterparts, an observation that helped lay the foundation for his theory of evolution.
For one thing, if a collared female
breeds late
in the season, choosing a pied male can actually be advantageous because the «heterospecific» pair will produce more fledglings than a pure collared pair would, owing to interspecies
differences in peak performance timing.
But to get the most out of canine gene hunts, geneticist Elaine Ostrander and her colleagues at the Fred Hutchinson Cancer Research Center
in Seattle, Washington, realized that she needed to know the degree of genetic
differences among various
breeds.
Researchers from Uppsala University, Sweden, and the Broad Institute, USA, have identified both similarities and
differences between a single tumor type
in multiple dogs
breeds; a finding they believe parallels the situation
in the cancer of human patients.
It's the first time scientists have shown
in selectively
bred animals that the propensity for addiction is linked to
differences in expression of genes for specific molecules
in a specific brain region.
The vast majority of
differences reported between organic and conventional milk come from what cows are fed and their
breed, and is not anything unique to being organic or conventional
in itself.»
The lack of genetic
differences in Namibian elephants could also be attributed to their long distance migrations; large home ranges; recent increases
in population size and range; or gene flow provided by male elephants
breeding with different groups of female elephants.
In these images of rat brains, differences in gene expression of genes for fibroblast growth factor 2 (FGF2, top set) and dopamine 2 receptor (D2, bottom sett) can be seen in rats of two breeds before (left) and after (right) cocaine exposur
In these images of rat brains,
differences in gene expression of genes for fibroblast growth factor 2 (FGF2, top set) and dopamine 2 receptor (D2, bottom sett) can be seen in rats of two breeds before (left) and after (right) cocaine exposur
in gene expression of genes for fibroblast growth factor 2 (FGF2, top set) and dopamine 2 receptor (D2, bottom sett) can be seen
in rats of two breeds before (left) and after (right) cocaine exposur
in rats of two
breeds before (left) and after (right) cocaine exposure.
«Because we had access to these rats that were
bred for certain traits, and were able to control for environmental factors, such as the amount of drug exposure, we could assess
differences in the brain both before and after the rats became addicted,» says Shelly Flagel, Ph.D., lead author of the new study and an assistant professor of psychiatry at U-M.
O'Malley said the next logical step
in the research is to develop selective
breeding strategies that better emulate mating strategies that occur
in the wild and to learn whether new strategies can reduce the
difference in reproductive success among hatchery - raised and wild fish.
«Small variations
in breeding pools make for big
differences in Yosemite toad use.»
Using both DNA sequencing and morphology, along with
differences in plumage,
breeding biology, vocalisation, habitat, distribution, dispersal and migration it was possible to show the
differences between the two species.
The U.S. government decided
in 2008 that there were no discernable
differences between cloned and noncloned cows, goats and pigs, so it allowed the process
in those animals, although mainly for
breeding rather than meat production.
Researchers from Uppsala University, Sweden, and the Broad Institute, USA, have identified both similarities and
differences between a single tumour type
in multiple dogs
breeds; a finding they believe parallels the situation
in the cancer of human patients.
Skeletal
differences appeared
in the 18th century, when people began to keep and
breed rabbits as pets.
We looked for SNPs associated with
breeds fixed for floppy or erect ears, and found a single region on CFA10 that is likely responsible for the
difference in ear type (Figure 3B).
To compare the
breeds, the researchers analyzed the DNA samples from the cheek - swabs for subtle
differences in genetic signposts, called microsatellite loci, among the dogs.
The amazing
differences in size and behavior of the various dog
breeds caught the attention of Charles Darwin
in the 1800s.
It is important to note these
differences through archaeological studies because,
in Americas, animal raising and
breeding have religious or cultural significance.
Researchers from SciLifeLab / Uppsala University, Sweden, and the Broad Institute, USA, have identified both similarities and
differences between a single tumour type
in multiple dogs
breeds; a finding they believe parallels the situation
in the cancer of human patients.
On top of that, scientific studies have not found significant
differences in the nutrient content of
bred made using modern production methods, compared to more traditional ones.
Bear
in mind, variations will be seen
in these
differences due to the
breed and age of chickens, their diet (grass, insects, and feed) and the season.
When the U.S. incarcerated more than 120,000 Japanese and Japanese Americans living on the West Coast during World War II, librarian Clara
Breed made a
difference in their lives by sending letters and care packages to them while they were interred.
The
difference between pit bull types, Akitas, Huskies, or other powerful dogs, and
breeds who are,
in fact, more likely to bite (like Cocker Spaniels and Chihuahuas among others) is
in the consequences, which increase
in severity and mortality proportionally to the size and strength of the dog.
The results revealed that there were no significant
difference in allergen levels between homes with hypoallergenic dogs and those with mixed -
breed and purebred dogs.
Same noble
breed; the only
difference is
in the people around them.
The book explains Coren's theories about the
differences in intelligence between different
breeds of dogs.
Both cats and dogs vary somewhat by their
breed, size and genetic background, just like
in people, practically the only
difference is that they walk on all four legs, and we (as people) walk on two legs.
As noted above, although the only real
difference between the four types of Belgian shepherds is coat type and color, the AKC registers three of the four types as separate
breeds and enrolls the rough - coated variety
in its Foundation Stock Service without full recognition.
The
differences in my dogs are small because of my consistency
breeding.
Factors such as the age and
breed of cat can also make a
difference in the cost of the insurance.
Consider a
breed specific formula that factors
in the
difference in needs between large and small
breed dogs.
In addition to differences in personality, disposition, and physical characteristics, various breeds have particular health and care issues as wel
In addition to
differences in personality, disposition, and physical characteristics, various breeds have particular health and care issues as wel
in personality, disposition, and physical characteristics, various
breeds have particular health and care issues as well.