perseus
I Love RPBF!
The Monkee Boys
Posts: 470
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Post by perseus on Mar 21, 2013 10:49:40 GMT -5
I have a question for the experts here. This may sound stupid but I wonder if there is a correlation between Pit Bulls that are white and deafness. I have seen several deaf Pit Bulls lately and they all are white. Today I saw a white PB -female, standing in the middle of the off ramp of major hi-way looking oblivious. Got me to thinking. Yes I did turnaround but she was gone - I am still kind freaked about it. I hate the area I work in.
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Post by RealPitBull on Mar 21, 2013 10:54:26 GMT -5
Yes, white and merle in dogs is associated with deafness. FROM: www.lsu.edu/deafness/genetics.htmThe method of genetic transmission of deafness in dogs is usually not known. There are no recognized forms of sex-linked deafness in dogs, although this does occur in humans. The disorder has been reported to have an autosomal recessive mechanism in the Rottweiler, Bull Terrier, and Pointer, but this suggestion is not reliable because the reports were before the availability of BAER testing and the ability to detect unilaterally deaf dogs............ Genetic transmission of deafness in dogs with the piebald (sp) and extreme white piebald (sw) pigment genes, such as the Dalmatian, is less clear. These genes affect the amount and distribution of white areas on the body. Deafness in Dalmatians does not appear to be autosomal dominant, since deaf puppies result from hearing parents. It does not appear to be a simple recessive disorder, since we have bred pairs of deaf Dalmatians and obtained bilaterally hearing and unilaterally hearing puppies, when all should have been deaf if the disorder was recessive. These findings might be explained by a multi-gene cause, the presence of two different autosomal recessive deafness genes, or a syndrome with incomplete penetrance. Further studies (in progress) will be required to determine the mechanisms. Several candidate genes known to cause pigment-related deafness in humans or mice have been eliminated as the possible cause of pigment-associated deafness in Dalmatians. Whole-genome screens will hopefully identify the cause in this and other breeds.
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perseus
I Love RPBF!
The Monkee Boys
Posts: 470
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Post by perseus on Mar 21, 2013 10:56:02 GMT -5
ha you beat me ML - i had just found this. Wow. I am even more freaked for that poor momma dog.
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Post by adoptapitbull on Mar 21, 2013 13:29:52 GMT -5
www.fleetfiretimbers.com/FFT/Articles/Color%20and%20Deafness%20in%20Dogs.htmA better biological understanding. I was going to try to explain it myself, but this link involved much less typing and you trying to understand me Fun Fact: When I took Cappy's leash and we started walking out of the shelter after signing his papers, they told me "Oh, yeah, by the way, he's probably deaf. I told them you wouldn't care because you just had a deaf dog." The whole car ride home I was making funny noises to see what Cappy was doing, and Jim thought I was nuts because he was already in the car when they told me that. After I figured out that Cap was NOT deaf, I told Jim what they said. He was not happy.
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Post by bluetrees on Mar 24, 2013 0:51:14 GMT -5
Our deaf pittie, Jack, is all white and our new deaf Catahoula, Louie, is merle.
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