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PRIMARY LENS LUXATION Primary Lens Luxation (PLL)
Clear Kennels
KnD has a goal. Well, we have many goals when it comes to these great little animals we call "Rat Terriers", but this goal I am talking about is a PLL clear kennel. Like I said though, it's not our only goal. We won't give up good qualities only to boast that we have all PLL clear yard. This genetic issue can be controlled with a simple one time DNA test. If we test and breed wisely we can keep our good qualities and breed away from this issue, but we won't do it at the expense of losing good qualities. PLL can be VERY well managed and easily. I actually worry a bit when I see breeders boasting about their PLL Kennels. It is just too early at this point and time to throw away all breeding dogs based only on this ONE manageable issue. If a breeder culls all his imperfect dogs, there will be needless sacrifices, eliminating valuable assets in the genepool. As a breed, Rat Terriers are not ready to limit their diversity. |
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Understanding Autosomal Traits
Understanding Autosomal Recessive and Autosomal Dominate traits.
Autosomal Recessive
Autosomal recessive is one of several ways that a trait, disorder, or disease can be passed down through families.
An autosomal recessive disorder means two copies of an abnormal gene must be present in order for the disease or trait to develop.
(Both parents each must contribute one copy of the abnormal gene.)
Source: Read more HERE
Autosomal Dominant
Autosomal dominant is one of several ways that a trait or disorder can be passed down through families.
If a disease is autosomal dominant, it means you only need to get the abnormal gene from one parent in order for you to inherit the disease. One of the parents may often have the disease.
Source: You can read more HERE
Breeding Strategies
Autosomal Recessive Disorders:
In the case of a simple autosomal recessive disorder (in other words, a disorder caused by a single, recessive gene that is not sex-linked) for which a test for carriers is available, the recommendation is to test your breeding-quality stock, and breed carriers to normal-testing dogs. The aim is to replace the carrier breeding-animal with a normal-testing offspring that equals or exceeds it in quality. You don't want to diminish breed diversity by eliminating quality dogs from the gene pool because they are carriers. As each breeder tests and replaces carrier dogs with normal-testing dogs, the problem for the breed as a whole diminishes.
Autosomal Dominant Disorders;
Autosomal dominant genetic disorders are usually easy to manage. Each affected dog has at least one affected parent, but it can be expected that half of the offspring of an affected dog will be free of the defective gene. With disorders that cause death or discomfort, the recommendation is to not breed affected dogs. To produce the next generation of a line, a normal full sibling of an affected dog can be used, or the parent that is normal can be used.
A problem with some autosomal dominant disorders is incomplete penetrance. In other words, some dogs with the defective gene may not show the disorder. Roughly half their offspring, however, may be affected. If a genetic test is available, this is not a problem. Otherwise, relative-risk assessment can identify which dogs are at risk of carrying incompletely penetrant dominant genes
Source: Breeding Strategies for Managing Genetic Traits
Jerold S Bell DVM, Clinical Associate Professor of Genetics
Tufts Cummings School of Veterinary Medicine
HERE
Primary Lens Luxation
Primary Lens Luxation (PLL) is Autosomal Recessive and very easy to control and mange IF you test your breeding stock. Plase, do not pay heed to ANY breeder casting stones at others that test. It only shows you that they have no idea what is going on. They can't show you any OFA results for any testing of dogs. They can't show you any carries of PLL, BUT thay can't show you any dogs that are clear either. How can they show you any bad results or GOOD when they do not test for anything at all.
They are happy to sit back and think they look ok becuase they didn't test and cast stones at those that do. How foolish is that? What they want to do is take the attention of themselves and their lack of testing by showing you less then perfect results done by breeders that DO TEST.
For us, testing is NOT about always removing dogs, but about breeding SMART. That starts with knowing what you have and making an educated decision for each and every dog and each and every cross.
Primary Lens Luxation (PLL) Clear Kennel
KnD has a goal. Well, we have many goals when it comes to these great little animals we call "Rat Terriers", but this goal I am talking about is a PLL clear kennel. Like I said though, it's not our only goal. We won't give up good qualities only to boast that we have all PLL clear dogs. This genetic issue can be controlled with a simple one time DNA test. If we test and breed wisely we can keep our good qualities and breed away from this issue, but we won't do it at the expense of loosing good qualities. PLL can be VERY well managed and easily. I actually worry a bit when I see breeders boasting about this. It is just too early at this point and time to throw away all breeding dogs based only on this ONE manageable issue.
Read more about PLL HERE |
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Testing & More
This ablum contains information on OFA, CHIC and testing for those national data bases, our terms and what you as a buyer can expect.
Testing does not mean that every puppy we breed is perfect. What is does mean is that we are trying. We are trying to improve our beloved breeds so that maybe someday..health issues will be less and less of a concern in our breeds.Primary Lens Luxation In Rat Terriers
Primary lens luxation is an inherited disorder in which the zonules or suspensory fibers degenerate. The condition occurs mainly in the terrier breeds, namely the Parson Russell terrier, Tibetan terrier, smooth fox terrier and rat terrier. Primary luxations are also seen in the border collie, the Australian cattle dog (blue heeler), and sporadically in other breeds. Although the underlying reasons for the lens luxation are not well understood, inflammation or a defect in the zonules may play a role. With primary lens luxations, both eyes are prone to dislocation of the lens.
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SOURCE: PET PLACE - CLICK HERE
Until October 15, 2009 there was NO test for PLL. Breeders were having to breed in the dark. But NOW, there is NO excuse. The University of Missouri, College of Veterinary Medicine through the partnership of OFA (Orthopedic Foundation for Animals), now has a DNA test for this mutation.
The DNA test can determine a dogs PLL status. See more about PLL, testing for PLL and breeding with PLL HERE
KnD Have been and are still in the process of getting out dogs tested. We ask that you all bare with us as this is expensive and it will take us time to get them done. Rat Terrier Characteristics:
"The Rat Terrier is an energetic, alert dog whose curiosity and intelligence make him easy to train. The Rat Terrier has sometimes been described as having a dual personality. He is a fearless, tenacious hunter with seemingly unlimited energy. When he is not hunting, however, the Rat Terrier is an exceptionally friendly companion, getting along well with children, other dogs, and even cats. Rat Terriers enjoy human companionship immensely and will enthusiastically share any activity with their owners. Rat Terriers should not be sparred during conformation judging."
Source: UKC Rat Terrier Breed StandardType "A" or Type"B"?:
KnD breeds Miniature Rat Terriers and what some of you refer to as Type "A". The fact is there is no more Type "A" or "B" in the UKC Breed Standard. Type "B" branched off into their own breed and are now called Teddy Roosevelt Terriers. As well as the American Hairless Terriers. They use to be a Hairless Rat Terrier until they too branched off into thier own breed.
This is
GRCH Texas True Blues Sir Marcus
He is a Teddy Roosevelt Terrier what use be known as a B Type Rat Terrier.
Isn't he handsome. He is breed and owned by our friend and fellow Texan Denise Brenard.
Click here to visit Texas True Blues MERLE
There is no such thing as a true merle Rat Terrier. These dogs are hybrids
and it is very possible for them to have a wealth of health problems.
Merle is not an acceptable pattern for Rat Terriers by any of the major registries.
AKC, UKC and even UKCI has changed their standard to read merle as a DQ (disqualification). Z “DISQUALIFICATIONS-A dog that cannot be brought under control. Monorchid and
Cryptorchid. Brindle on body other than face, merle color.”
Source: Here UKCI Breed standard
To read more about merle and it's health issues please go READ HERE
ABOUT TOY RAT TERRIERS HERE
Fact or Fiction
This is suppose to be the Rat Terriers family tree. I have asked many many purebred Rat Terrier breeders where it came from. NO ONE knows and most would disagree with it.
 Terms You Will See On KnD Health Reports
- ~ Pending: The test are sent to OFA and we are waiting for the report and certification numbers.
- ~ Kennel Rate: The dog is of proper age for testing and has been tested but waiting for other dogs to test for OFA to take advantage of reduced rates for 5 or more dogs at one time.
- ~ Proper Age Of 2: The dog is not of age to complete the full range of test.
- ~ In Process: Testing has began.
What You Can Expect
All PET puppies are spayed or neutered prior to leaving  Your puppy will be spayed or neutered at the age of 9 weeks old. It will then stay here at KnD until it is 12 weeks old to insure it's health prior to leaving. All puppies are microchipped, wormed and have had a 5 way vaccination at 6 weeks, a 7 way at 9 and 12 weeks.
KnD are ADVOCATES of spaying and neutering your PETS!!!
*Show and performance homes please inquire further*
*Please Note:*
We reserve the right to carefully select who we allow to have our babies. We do not mean to offend anyone but we must do what we see as best for our babies for they are indeed our babies. All monies used as a deposit to hold a puppy are non refundable after the puppy is announced as sold.
A Little Information
Our kids are not bred before the age of two. They are OFA Certified and CHIC (when applicable).
All of our babies are UKC Registered and/or AKC FSS.
These links below will take you to their sites.
   
What Is OFA and CHIC?:
"The Canine Health Information Center, also known as CHIC,is a centralized canine health database jointly sponsored by the AKC/Canine Health Foundation (AKC/CHF) and the Orthopedic Foundation for Animals OFA."
(source: CHIC)
Please Read Here:
Should we OFA and CHIC? and Lar-Mons Little Boy Blue "Boo"
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