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Coloured foal from grey mare - will it grey out?

Equine-Reproduction.com Bulletin Board » Equine Genetics » Coloured foal from grey mare - will it grey out? « Previous Next »


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Janet George
Posted on Thursday, August 12, 2004 - 07:26 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

I have a dapple grey TB x Percheron mare. The sire was grey - we assume the mare was (as she was the Percheron.)

She has foaled to a coloured stallion whose mother was bay. The foal is a very nicely maked black and white. I'm wondering if it's likely to grey out? There's a pic at http://www.saddle-up.org.uk/Stables/pics/ruby.h8.jpg
 

Cathy
Posted From: 65.54.98.166
Posted on Thursday, August 12, 2004 - 08:34 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

Janet It looks like the foal is very dark. Most black foals are born a mousey color that darkens when they shed their baby coat. Most blacks that are going to grey are born dark, and then grey out. Look around his eyes for any grey hairs. With the sire and dam both grey even if they are both heterozygous you have a 75% chance of him greying.
 

Cathy
Posted From: 65.54.98.166
Posted on Thursday, August 12, 2004 - 08:37 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

I read the post wrong. sorry :-( His sire wasn't grey, but colored. That will change the chance to 50% unless mom is homozygous. Cathy
 

Janet George
Posted on Friday, August 13, 2004 - 08:42 am:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

Thanks Cathy - don't know Mum's status (other than that I don't like standing behind her!)

But yes, sire was coloured, by a coloured stallion out of a bay mare. He has no sign of spectacles or any grey hairs in the black - so just keeping my fingers crossed.

Won't need to guess next year - she's being AI'd on Monday to my grey stallion - so I think we can put money on a grey next year!



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