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brown or smoky black or?

This is a discussion on brown or smoky black or? within the Horse Colors and Genetics forums, part of the Horse Breeds, Breeding, and Genetics category
  • Brown vs smokey black horses
  • What is a smokey brown horse

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    03-04-2013, 06:40 PM
  #31
Cat
Green Broke
Pics from yesterday - and I am hoping to get cream tested here soon - so after all the feed back I will at least have an answer on cream/Smokey or not that I will be able to share. He is starting to shed and I will post more pictures when he is finally shed.





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    03-04-2013, 06:53 PM
  #32
Green Broke
Love those lips! Well he sure looks brown to me, but close up you can see the black. Hummmmmmmmmmmmmmmmmmmmmmm.
     
    03-05-2013, 07:28 AM
  #33
Cat
Green Broke
Well I'm thinking if he tests positive for cream then I'll have my answer on smokey. If he tests negative for cream maybe I will send samples in to that other lab for brown and see what they say. Not sure if I want to spend that much money on this curiosity of mine, but I think the first $25 sure.

Now I'm curious about brown vs. bay testing and might have to post another thread on this. But since brown is so closely related to bay, if you tested for bay - would browns come back as carrying the agouti gene on those tests from the labs that don't specifically test for brown? And so if a horse came back as not an agouti carrier would that mean brown would not be an option? I'm curious how that works.
     
    03-05-2013, 08:16 AM
  #34
Trained
Quote:
Originally Posted by Cat    
Well I'm thinking if he tests positive for cream then I'll have my answer on smokey. If he tests negative for cream maybe I will send samples in to that other lab for brown and see what they say. Not sure if I want to spend that much money on this curiosity of mine, but I think the first $25 sure.

Now I'm curious about brown vs. bay testing and might have to post another thread on this. But since brown is so closely related to bay, if you tested for bay - would browns come back as carrying the agouti gene on those tests from the labs that don't specifically test for brown? And so if a horse came back as not an agouti carrier would that mean brown would not be an option? I'm curious how that works.
You are exactly right.

The labs that run "agouti" tests, not the brown specific, test for the presence of the recessive "a" allele. If they find two, the horse is aa, if they find one the result is a_, and if they don't find any at all, the horse is _ _. The result is then flipped - where no recessive allele is found, a dominant one has to be. Since all three variants of agouti (classic bay, wild bay and brown) are dominant, it doesn't actually specify which of these, just that the recessive is not there.
     
    03-05-2013, 09:18 AM
  #35
Cat
Green Broke
Okay - cool. So if I did have the test run at UC Davis or one of those and the cream was not found so I had them test for agouti and it came back a_ or _ _ - I could be fairly certain he is brown then since he sure doesn't look bay?
     
    03-05-2013, 09:20 AM
  #36
Trained
It would be a fair assumption to make. I won't say 110% totally accurate, because without the test, it never is, but I would be happy to say it. For what it's worth, I think he will come back as smoky black
     
    03-05-2013, 09:21 AM
  #37
Cat
Green Broke
Thanks Chiilaa - that is what I suspect too. And I really don't need 100% - just trying to feed my curiosity a bit. LOL.
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    03-05-2013, 07:08 PM
  #38
Trained
Let the rest of us know when you do too lol.
     

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