samshine
Posted : 8/8/2007 8:00:04 PM
With responsible breeders, it's also about what you DON'T breed.
I kept one male out of the one litter I have bred. He is absolutely gorgeous, but he will never be bred. He was found to have juvenile cataracts at about 18 months of age. The affect on his vision is minor and without the knowledge that they need to be screened by a veterinary ophthamologist every year I never would have known.
If he were to be bred there is a good chance he could produce puppies with serious vision problems. If this dog were in the hands of most breeders he probably would have been bred. People breeding mutts would never know to screen for juvenile cataracts. People breeding cross-bred "doodles" and the like would not know. Most people breeding purebred dogs would not know. Most pure-bred breeders have a pure bred X and their only criteria for breeding is that the male also be an X. In my book these are all irrresponsible breeders. Only people who are actively involved in their breed have the depth of knowledge required to make responsible breeding decisions.
If we are going to bring more dogs into this world, I think it is our moral responsibility to do what we can to avoid breeding dogs that go blind, develop hip dysplasia, elbow dysplasia, have epilepsy, sub-aortic stenosis (heart problem) etc. These are all conditions that can be lessened through careful breeding practices. If someone has a dog who "seems healthy" and is bred multiple times, and then goes into the vet because she is limping at eight years old and is found to have hip dysplasia, that is irresponsible and in my book immoral. There are now generations of dogs out there who are more likely to have a crippling disease and some will be more affected than the mother. The dog should have been screened before breeding.
Here's a sample of some of the some of the things I now know about breeding my chosen breed, because I have been active in showing for many years.
Puppies should have their eyes screened around 8 or 9 weeks by a veterinary ophthamologist. One of the things they will look for is retinal folds. In my breed retinal folds are linked with dogs who carry the recessive gene for dwarfism. Most puppies with folds are not carriers, but some are. If you have a puppy that had folds at their first exam, you need to make sure to never breed her to a male who also had folds as a puppy. There are a host of health problems that come along with dwarfism in my breed.
Another thing we have is PRA, progressive retinal atrophy. Dog gradually go blind, starting with night blindness. With many dogs symptoms are not detectable until after they may have been bred. Dogs need to be screen by an ophthamologist because he can see signs early. PRA is now detectable by a genetic test in my breed, and it is an X-linked gene. That is important to know because you can breed an affected male to a clear female and have no chance of producing the disease. However, you can NEVER breed a carrier female, even to a clear male because some puppies will probably go blind. I could explain how that works but it is kind of complicated.
In my book, what makes breeding responsible is not whether the dogs are purebred. What does make a difference is the depth of knowledge and level of commitment of the breeder. And you just don't find that in people breeding mutts and cross-bred dogs. You also don't find it in the majority of people breeding purebreds. You do find it in the small portion of people who are competing with their dogs and for whom this is their life's passion.
It's not about purebred vs mutt, it's about responsible breeding.