This is what Collies are all about.
You will find no other breed with the love and loyalty
that a Collie is willing to give to you and your family.
We have
puppies!

8
healthy & chubby
puppies.

Some are available.
Original Site
Cornell University
has discovered the DNA marker
for PRA in Collies.  Breeders will have
a test for PRA in the near future!!!
All of our dogs will be tested.

The only way to test for PRA, previous to this test,
was to locate PRA blind dogs to breed to your own dogs.
This could produced puppies that were blind, if your dog also carried
the DNA gene for PRA.  This would mean eliminating dogs from your
breeding program.  If enough puppies were born and  none of the
puppies developed PRA, your dog was clear of PRA, but ALL the
puppies would still be carriers of PRA, all capable of
passing on the disease.

This was very expensive to do, and difficult to find homes
for puppies that would be blind the rest of their lives.

Now, breeders will be able to do blood tests
to determine the DNA status of their dogs.


PRA is inherited as a recessive trait.
This means a gene for PRA must be inherited from each parent for
their puppies to have the disease.  Dogs are either “carriers” or
affected.  A carrier has one disease gene and one normal gene
and was not blind.   A normal dog has no disease gene, was not
blind, and would not pass along any PRA genes to its puppies.
A dog with two genes for PRA would be blind, and would
pass along PRA genes to some of the puppies.

That is why this test is so important to breeders.
Breeders will be able to test their dogs, and know which
dogs are 'safe' to breed to other dogs, therefore,
avoiding producing PRA blind dogs.

Dogs that are PRA/Clear (no genes for PRA)
can be bred to any other dog, even blind ones, and
produce puppies that will never go blind from PRA.

This also allows breeders to completely eliminate PRA
from their bloodlines, which is the ultimate goal of
conscientious breeders.

So, this is a wonderful and important breakthrough
for Collie breeders.

Researchers have discovered this DNA marker gene
in other breeds, and now Collies and their breeders will
have the advantage of this new test, as soon as it
becomes available to us.
Nc
Normal/carrier
(is not blind
but carries
1 PRA gene
& 1 Normal gene)
Possible PRA
status
aa
PRA Blind
(carriers 2
genes for PRA)
NN
Normal/Clear
(carriers 2
normal genes)
No affected genes.
One Parent, a Normal/Clear dog
(no PRA genes) bred to another
Normal/Clear dog will produce
only PRA Normal/Clear puppies.
(No blind or carrier puppies.)
One Parent, a Normal/Clear dog
(no PRA genes)
bred to a Normal/carrier (1 normal
gene & 1 affected gene)
will produce both Normal/Clear &
Normal/carrier puppies.
(No blind puppies.)
One Parent, a Normal/carrier
bred to a Normal/carrier
will produce Normal/Clear,
Normal/carrier puppies and
PRA blind puppies.
If both parents are affected
(blind because they carry 2 genes for
PRA) all the puppies will carry 2
genes for PRA and all will
be PRA blind.
I am working on
restoring the
original
home page, it will be
done soon.
the Ultimate Companion