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#1
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Problem in Bullmastiff ancestory?
Hi,
I am currently evaluating bullmastiff breeders and happened to look at the lineage tree of our last dog, Max, a bullmastiff who died this month of AIHA. Max's fathers, father (Paternal grandfather) and mothers, fathers, father (maternal great grandfather) were the same dog. Does anyone know if this can cause genetic problems? Better yet does anyone know how to evaluate a dogs family tree to better help judge if the dog is going have problems or not? Any help appreciated. |
#2
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fabbl wrote:
Hi, I am currently evaluating bullmastiff breeders and happened to look at the lineage tree of our last dog, Max, a bullmastiff who died this month of AIHA. Max's fathers, father (Paternal grandfather) and mothers, fathers, father (maternal great grandfather) were the same dog. Does anyone know if this can cause genetic problems? Better yet does anyone know how to evaluate a dogs family tree to better help judge if the dog is going have problems or not? Any help appreciated. It can or can't cause genetic problems. If the genetic "bad trait" is there, it can be passed down the line. If one carrier is bred to another carrier, then you're likely to get a dog with the disease. So that if his dam's grandsire got the ability to pass on the genetic disease from the same dog that was Max's sire's sire, there's a chance that Max's sire could have the ability to pass on the trait. Then again, if this dog was free (not a carrier, not afflicted) of the trait, it would be fine. It's really no different than if the dam's grandsire and the sire's sire were different dogs, but both were carriers or afflicted and could pass the trait down. The line breeding tends to "cement" a trait into the breeding line, and it can be either something good for the line, or bad for it. So again, if the shared ancestor was a carrier/afflicted, it could have passed that down the line. If the ancestor was NOT shared, but both the sires in question were carriers/afflicted, it could also get down the line. natalie -- The turtle lives twixt plated decks Which practically conceal its sex. I think it clever of the turtle In such a fix to be so fertile. ---Ogden Nash |
#3
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This type of line breeding is only a problem if the defect that causes
the disorder is present in the line.... You'd have to know about the dogs in the direct pedigree, and also siblings of those dogs... and remember it could have come in via two unrelated dogs.... Until there are tests to identify carriers, the only method of spotting them is when they throw pups with the problem... One of my guys has the same male as both grandfather and greatgrandfather... but none of our known health problems have shown up in that line of decent to date... even via unrelated dogs. Whew! Jo Wolf Martinez, Georgia |
#4
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Max was a big dog and above standard - we got him down to 152 pounds. He
always had redness, ear infections and an alergic reaction to bacteria on his skin. When the AIHA was diagnosed, all the redness magically went away. I suspected that the dog had immune system problems from the beginning. Max turned 6 years old last November. The breeder we got the dog from was sympathetic but told us that she never heard of AIHA before in her dogs. Should she have? I can't believe we got the one-in-a-million for some reason. Thanks for your input, I'm working in a vaccum here. "fabbl" wrote in message . com... Hi, I am currently evaluating bullmastiff breeders and happened to look at the lineage tree of our last dog, Max, a bullmastiff who died this month of AIHA. Max's fathers, father (Paternal grandfather) and mothers, fathers, father (maternal great grandfather) were the same dog. Does anyone know if this can cause genetic problems? Better yet does anyone know how to evaluate a dogs family tree to better help judge if the dog is going have problems or not? Any help appreciated. |
#5
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On Sun, 28 Mar 2004 21:02:33 GMT fabbl whittled these words:
Hi, I am currently evaluating bullmastiff breeders and happened to look at the lineage tree of our last dog, Max, a bullmastiff who died this month of AIHA. Max's fathers, father (Paternal grandfather) and mothers, fathers, father (maternal great grandfather) were the same dog. Does anyone know if this can cause genetic problems? That is really not a very close breeding, not something to be concerned about when reading the pedigree. Some level of breeding between relatives is necessary for the creation and continuance of predicatble qualities in breeds. Otherwise its just a mystery with every breeding, which is not good for the welfare of dogs. Better yet does anyone know how to evaluate a dogs family tree to better help judge if the dog is going have problems or not? Any help appreciated. The more you know about the dogs in the pedigree the better you can asses the risks. The book "Control of Canine Genetic Disease" is well written and clear. It isn't light reading but it won't be a struggle either. It is really the best resource I can think of for explaining the inheritence of genetic problems, and how to evaluate a pedigree. The ability to evaluate the pedigree depends a lot on how involved the breeder is in being candid about the bad as well as the good. The book will explain more about heath registries, open and closed, and how they can help in researching a pedigree. -- Diane Blackman http://dog-play.com/ http://dog-play.com/shop2.html |
#6
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On Mon, 29 Mar 2004 23:57:57 GMT fabbl whittled these words:
Max was a big dog and above standard - we got him down to 152 pounds. He always had redness, ear infections and an alergic reaction to bacteria on his skin. When the AIHA was diagnosed, all the redness magically went away. I suspected that the dog had immune system problems from the beginning. Max turned 6 years old last November. The breeder we got the dog from was sympathetic but told us that she never heard of AIHA before in her dogs. Should she have? I can't believe we got the one-in-a-million for some reason. Thanks for your input, I'm working in a vaccum here. I think its possible. Out of 750 dogs submitted to the Health Survey only one had an autoimmune problem. http://mastiff.org/exhibit-hall/health/mhstats.mv It isn't a problem so strongly associated with the breed that I would see red flags as regards to this breeder. My evaluation of the breeder would be mostly influenced by what she does with the information. For example, would she repeat the breeding? And if asked by someone in regards to a future puppy would she admit to now having seen the problem? And is she willing to contribute the information on her own dogs as well as yours to the health survey. Because collecting informtion is the first step to solving the problems. As living beings our dogs can have serious genetic problems even with the most careful of breedings. All you can really ask of a breeder is that they make a serious effort to investigate the health of the dogs in the pedigree, that they contribute to open health registries, that they share information (good and bad) on their breedings, and that they follow up on puppies to find out any issues. A good breeder does not rely on waiting for puppy owners to call and complain. -- Diane Blackman http://dog-play.com/ http://dog-play.com/shop2.html |
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