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jazzyrider 12-22-2007 01:33 AM

colour chances???
as most of the free world now knows, im putting my mare in foal early next year. im just wondering what the people who know about genetics think about what colour i am likely to get.

my mare is chestnut and her dam was chestnut and father liver chestnut. her grandmother was bay i think and her grandfather was chestnut. the stallion is black with black parents 3 generations back from what the owner has told me.

im guessing i will get a dark foal but im not sure. can anyone tell me?

BluMagic 12-22-2007 01:35 AM

I'm thinking blood bay or maybe even smokey black or something.... :?

Campdraftin_Chic 12-22-2007 07:04 AM

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bubba13 12-22-2007 12:57 PM

Your mare will only contribute "red" (chestnut) genetics, no matter what her parents were, as red is a recessive gene.

Now, is the stallion homozygous for black?

That will tell you if the odds are in favor of a black, bay, or chestnut foal--the only possibilities.

Kyani 12-22-2007 01:13 PM

LOL. I'm sorry, but without knowing the genes the stallion carries, I can honestly say you could get almost ANYTHING. The only things you could never get out of your mare are those which require homozygosity (except chestnut, which she has, obvs) - cremello, smoky cream and perlino are impossible. Anything else is easily likely, depending on the stallion.

EDIT: Sorry, missed the part where you said stallion was black, even though I looked for it! Not too bright sometimes...

Yeah...IF the stallion is heterozygous, you could easily get black or chestnut. Depending on whether your mare carries agouti, you could also get bay - a definite if she is homozygous, a maybe if not, and she might not carry agouti at all - the only way to tell is with a test.
If the stallion is homozygous black, there is no chance of a chestnut.

There's also a slight possibility that either of them carries a paint gene. Both sabino and frame are easily hidden in minimal white markings (splash and tobiano can be too, but it is less likely) and CAN express much more loudly when passed on - I don't think it's fully understood how this works.

Supermane 12-22-2007 08:24 PM

bay, black, or chestnut.
If the stally is homozygous black then bay or black.

jazzyrider 12-23-2007 12:41 AM

they arent sure wether or not he is homozygous. she is waiting to send a sample for testing but because of the flu she isnt allowed to send it yet as it would be going to a non flu area.

luvs2ride79 12-25-2007 05:21 PM

If the mare is carrying Agouti from her bay grandparent, then you have a chance of 50% chestnut (whatever shade), 25% Black, and 25% Bay. If the stallion is homozygous for black (never sired a chestnut, or other red based color foal), then you have a 50% chance for black and 50% chance for bay.

Be careful with the online color calculator. It will give you WRONG results if you put "unknown" for ANYTHING! When you put unknown, it averages the results of all of the "unknown" factors, and there is no earthly way those results would be accurate. If you really don't know, then run it one way and then the other, to see the two (or more) possible outcomes.

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