Brown and Bay again
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Re: Brown and Bay again
Thanks for that, worked perfectly. LOL, they all looked brown to me, so I wouldn't find it out of the ordinary that they test brown. I would though if the bay mare in the bottom right had.
I can see the brown test might be useful in animals with broken colour/white legs, where you can't see the over all body colour distribution.
Here are two brown foals from last season, both looked bay with light legs.
Both now very dark brown all over, with paler muzzles.
[attachment=0]DSC_5052.jpg[/attachment]
[attachment=1]DSC_4889.jpg[/attachment]
Re: Brown and Bay again
Admin, my chestnut mare in the post above, must carry At, because she produced a brown foal to my homozygous black stallion. She is by a bay out of a brown.
I don't think she looks any different.
Here is a pic with a bit more of her in it.
[attachment=0]DSC_6157-1.jpg[/attachment]
Re: Brown and Bay again
[quote="RiddleMeThis"]Heres a collection of photos with At horses that have been tested
http://www.tdmequinedesign.com/Expressi…" onclick="window.open(this.href);return false;[/quote]
They are more what I thought brown to be, interesting too that they don't have light muzzles. None of them look really bay. It's the sooty looking or darker bays that people are calling browns that confuse me!
Re: Brown and Bay again
Sorry I am now even more confused.
ACC you said they have not identified A....but they[i]have[/i] identified At?? How come, surely At and A are pretty close?
Thorwood, please will you adopt me?
I am small and do not eat much and am still able to muck out , baby sit and train form the ground. I am a qualified teacher, I work for food!
Re: Brown and Bay again
[quote="rabbitsfizz"]Sorry I am now even more confused.
ACC you said they have not identified A....but they[i]have[/i] identified At?? How come, surely At and A are pretty close?
[/quote]
Yup and yup!! They HAVE found 'At'. No one has found 'A'. No one has an explanation. Apparently the agouti locus is pretty complicated. Remember the French found NOTHING on it which means they had to miss at least two mutation alleles. Pearl is very close to cream but they didn't find it when they found cream. Really, they have to be looking for it to find it and quite frankly, I really don't believe anyone is looking for 'A' because until now the 'a' test has proven sufficient.
Re: Brown and Bay again
RiddleMeThis, that makes sense, I did ask on here once what the wild colour was & I was told Bay by one our our scientific fraternity.
Rabbit, if you can do all that come on over, you can move in here anytime!!!!! :rofl
Hmm, yes a black horse with tan muzzle (what I call seal brown or black/brown) is very different in appearance from the brown horses in those photos.
Re: Brown and Bay again
[quote="RiddleMeThis"]The impression I got ( and this could be wrong ) was the reason they haven't found "A" is because "A" isn't a mutation. Its the "wild type" no mutation. "a" is a mutation of "A". So there is no mutation for "A" to actually find.[/quote]
Oh that makes sense. So all they needed to find was 'a', 'At' and 'A+'. We're 2/3rds there. But still... 'E' is the wild type and they have that mutation don't they? Or are they just testing for the presence of 'e'??
Re: Brown and Bay again
I would really love to see if there are correlated phenotypic differences between At/a and At/At individuals. Also to see how it affects other things in the big picture. We've seen agouti in general can reduce the risk of melanoma in grays. ^_^
That being said. :lurk Just keep talking, this is a very interesting thread. :ymdaydream:
Re: Brown and Bay again
Ok since I'm not sure why that one isn't working, try this version
http://i20.photobucket.com/albums/b236/…" onclick="window.open(this.href);return false;