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post #11 of 18 Old 02-22-2012, 08:50 PM
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Ahh that makes sense.
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post #12 of 18 Old 02-22-2012, 09:25 PM
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Originally Posted by Chiilaa View Post
So this is what we know: (I think the stallion's agouti status may be wrong, he doesn't look brown dun to me, and definitely isn't bay dun. But I ran with the info given. If I am correct, and he doesn't have any agouti gene, then there is no chance the foal could be bay or brown.)



EeaaddRr (for the sake of full possibility, I have assumed that your mare is hetero for roan, see below for more).

The possible extension for the foal:

25% EE - black

50% Ee - black

25% ee - red

Possible agouti: Please note that agouti only acts on a black base coat, so a red horse won't change depending on agouti status.

25% Aa - bay or brown

75% aa - black


25% Dd - dun

75% dd - not dun


25% Rr - Roan

75% rr - not Roan
If your mare turns out to be homozygous, these roan chances would change to 100% Rr - Roan.

Possible colours from this cross:

Black roan
Bay roan
Brown roan
Chestnut roan
Black dun
Bay dun
Brown dun
Chestnut dun
Black dun roan
Bay dun roan
Brown dun roan
Chestnut dun roan

I think your Punnett squares are off. If she has one roan she will pass it on 50% of the time so it should be 50% roan, 50% not roan. Same with the Dun.
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post #13 of 18 Old 02-22-2012, 10:24 PM
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Originally Posted by doubleopi View Post
I think your Punnett squares are off. If she has one roan she will pass it on 50% of the time so it should be 50% roan, 50% not roan. Same with the Dun.
Bah you are correct lol. This is what happens when I do math before I have caffeine in the mornings lol.
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post #14 of 18 Old 02-23-2012, 11:12 AM
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Out of curiosity, is there any chance that the stallion is a smokey black dun? Thought I would ask since he doesn't appear to have an agouti gene to me.
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post #15 of 18 Old 02-23-2012, 11:30 AM
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Originally Posted by NdAppy View Post
Ahh that makes sense.
Haha - I was wondering the same thing. UC Davis doesn't normally make those kinds of mistakes, but A/a didn't match the phenotype of the horse. The c & p obviously got zapped with a hard-wired captialization...I thought I was going wacko...
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post #16 of 18 Old 02-23-2012, 11:34 AM
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Lol That is why I was asking Face! I was going this just doesn't read right. Gotta love computers for autocorrects.
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post #17 of 18 Old 02-23-2012, 02:00 PM Thread Starter
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yeah sorry about that, it was a good thing I went back and double check.

As far as him being a smoky black dun, I have no idea all that the breeder told me was that he is EeA+aDd and he is hetrozygous for dun and black and carries the seal gene.

When I do the color calculator it says that this is my probability.That is if I am entering the info correct.

18.75% -
Grullo Roan
18.75% -
18.75% -
Blue Roan
18.75% -
6.25% -
Red Dun Roan
6.25% -
Red Dun
6.25% -
Chestnut Roan
6.25% -
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post #18 of 18 Old 02-23-2012, 03:04 PM
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you need to enter the brown as bay on the color calculator. Both are agouti genes for the purpose of this one it is the same.
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