Sentences with phrase «small gene pool»

In breeds with small gene pools, as is the case with many pure breeds, elimination of identified carriers may not be the best strategy, as genetic diversity would become dangerously compromised.

In general, pedigree breeds use a much smaller gene pool for breeding than domestic cats and therefore have a higher risk of developing inherited disorders.

Like other breeds with a very small gene pool, some of these issues may be compounded and widespread.

The early years of the breed involved a fairly small gene pool, so the risk for hereditary conditions is worth considering for this breed.

This is a genetic weakness, believed to be caused by the relatively small gene pool that was necessary to breed for specific characteristics (both physical and mental).

This is considered to be a rather small gene pool upon which to establish a breed.

What happens when all of these variants, with a now small gene pool, are bred together to «perfect» this narrow portion of the standard?

Clearly small gene pools are hazardous to the future of a breed (5).

Because when they're considered different breeds, they can't be bred together, which means each «breed» has its own small gene pool instead of one large one.

Breed - Related Health Concerns Behavioral problems are possible due to in - breeding from small gene pool.

Purebred registries are not only small gene pools but also most of the time closed gene pools.

Scientists use an «inbreeding coefficient» to measure how small a gene pool is.

Purebred dogs have much smaller gene pools, which can lead to serious medical problems.

Because the German Pinscher has a fairly small gene pool there are risks for a number of inherited conditions.

Many trendy purebreds have too small a gene pool for reliable breed health.

Pomeranians have a worryingly small gene pool, so in this respect outcrossing to a Chihuahua is a great thing for their genetic health.

Both these breeds are small in population and struggle with small gene pools.

The ability to breed from carriers is a good thing, especially in breeds with a very small gene pool, as it gives us the widest possible choice of genetic material to work with.

The relatively small gene pool from which Spinoni are descended demands that careful consideration must be made before breeding.

On islands, sexually reproducing species have a smaller gene pool to draw on than their mainland counterparts.

L. lugubris also has a small gene pool: its population consists of clones descended from four or five interspecies couplings.

European breeders were concerned that there was such a small gene pool to work with and decided to crossbreed the American Burmese with the Siamese cat.

Recessive genes will always appear more often in a smaller gene pool.

Less popular breeds would have smaller gene pools.

So a breed with a smaller gene pool (and thus less genetic variation) would be more likely to have a recessive disorder.

Tollers started out with a small gene pool so they do have some genetic problems.

There is an abundance of issues that stem straight from the small gene pools that human beings have manipulated in dogs; 60 percent of golden retrievers will die of cancer before they turn eight.

In consideration of the small gene pool, stud dog owners must use restraint and judgment in the repeated use of a stud dog.

The American Staffordshire Terrier has a smaller gene pool and is more likely to look consistent.

The Norbottenspets is a very healthy breed with a long lifespan, this is largely due to the fact that the breed has a small gene pool.

Again, the «rarer» spaniels have small gene pools which makes them more susceptible to genetic diseases.

When the AKC stud book of 188 breeds is ranked in descending order based on the average number of litters produced during a three - year period (2013, 14, 15) the 60 breeds that appear in the bottom group all have three common characteristics: small gene pools, declining genetic diversity and the risk of extinction from the show ring.

Learn about why breeds with large and small gene pools should pay attention to what is happening in their breed.

Unfortunately, with the small gene pool comes the exacerbation of the deleterious impact of inbreeding depression especially over time.

A smaller gene pool is the necessary consequence of having the great breeds we have today.

(All responsible breeders carefully place their dogs in new homes, but breeders of rare breeds are even more finicky about where their pups go because they are guardians of a small gene pool and need to make sure that all breedable dogs are kept intact and that buyers understand the consequences of owning a pet that is also the repository of genes from that limited pool.)

Whilst some of the lost alleles may be deleterious versions of genes, the process may at the same time increase the proportion of other, mildly deleterious alleles, in the small gene pool, and thus increase the incidence of some diseases.

The gradual loss of alleles from populations is known as «genetic drift», this is a random process which occurs naturally in all populations; it may not matter much in the large gene pool of a large population, but becomes increasingly serious over time in the small gene pools of smaller populations.

It is thus a genetic isolate, with a small gene pool, significant inbreeding, and pedigrees with multiply overlapping generations.

Along the way, Bostons were further cross-bred with other breeds such as French Bulldogs and even the mighty English Mastiff in order to bring new blood into what had become a very small gene pool.

It has to do with genetics and a smaller gene pool.

The rarer the breed, the smaller the gene pool is.

With a small gene pool of thirteen dogs, Shih Tzus made their way to Europe in 1952.

Exotic shorthair and Persian cats are known for their small gene pools.

The smaller the gene pool, the greater the odds of the infant coming up with two of those defective genes.

Italian greyhounds have a small gene pool.

Other health concerns that the breed may suffer from have yet to be discovered because of the breed's relatively young age and small gene pool.

In a small gene pool like FCRs, it would be unwise to eliminate carriers as valuable genetic variation could be lost.

A closed registry with a small gene pool undergoing a further tightening due to sire selection and overuse guarantees inbreeding and a steady increase in the occurrence of negative genetic issues.