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What genes cause the Medicine Hat pattern

This is a discussion on What genes cause the Medicine Hat pattern within the Horse Colors and Genetics forums, part of the Horse Breeds, Breeding, and Genetics category

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        12-14-2012, 11:20 PM
      #11
    Trained
    I'm not sure if it's a specific splash mutation that's involved with the deafness. I know Gunner is SW2. And Can't Hear Guns is a granddaughter of his.
         
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        12-15-2012, 01:16 AM
      #12
    CCH
    Weanling
    SW2 does cause deafness. SW3 is rare and often found in combination with SW2. I don't think there is an official stand on whether SW3 *may* cause deafness on its own or if there just isn't a large enough population of only n/SW3's to say for sure.

    SW1 does NOT cause deafness.
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        12-15-2012, 07:15 AM
      #13
    Green Broke
    When I saw the first post about white causing deafness, my first thought was, "o lord another old wives tale," So I did some research, and surprise surprise, the hairs in the inner ear need pigment to work.
    Based on a couple papers by Doctors or Doctorate students, No it isnt progressive, it either is or isnt deaf or partially deaf.
    An affected horse or even a pair of affected horses arnt any more likely to throw a deaf horse than any other with the genes, Its all a matter of where the un pigmented hair ends up.
         
        12-15-2012, 07:38 AM
      #14
    Trained
    Quote:
    Originally Posted by Joe4d    
    when I saw the first post about white causing deafness, my first thought was, "o lord another old wives tale," So I did some research, and surprise surprise, the hairs in the inner ear need pigment to work.
    Based on a couple papers by Doctors or Doctorate students, No it isnt progressive, it either is or isnt deaf or partially deaf.
    An affected horse or even a pair of affected horses arnt any more likely to throw a deaf horse than any other with the genes, Its all a matter of where the un pigmented hair ends up.
    I want to like this over and over. Because this represents my favourite quality in a person - a willingness to adapt your point of view and change how you think. Joe, we may not see eye to eye on everything, but right now, I am humbled by your willingness to better yourself
    Poseidon, verona1016 and BBBCrone like this.
         

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