Rounds With Doc T
This is a live meeting with Doc T, during which members can ask questions about horses. Doc T... View more
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Rounds With Doc T – “50 Shades Of Red And Black. Just How Do Horses Get Their Chestnut, Paint, or Bay Coat?” – 2021 June 28th
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Rounds With Doc T – “50 Shades Of Red And Black. Just How Do Horses Get Their Chestnut, Paint, or Bay Coat?” – 2021 June 28th
Here is the replay of the June Rounds with Doc T “50 shades of red and black. Just how do horses get their Chestnut, Paint, or Bay coat?
Understanding how horses look the way they do is based on genetics. I attempt to simplify the view of coat color and patterns in an organized way. While all is not fully known about the complex variations, there is a layering of effects from base color, then base color modification, then base color dilution and finally patterns applied to the overall result.
Note that there are images in the “Horse Care” topic (go to the menu above in a new tab) called “Coat Colors and Patterns” which you should look at as you listen. If you have ANY images of a specific coat color that is modified, diluted and added to, please add it to this discussion and I will also add it to the topic posts in the appropriate area.
Looking forward to reading the feedback on this topic and @doc-t will be happy to answer any further questions below!
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6 Replies
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Meant to get a question in on behalf of a friend. She wondered what labs she might contact for testing. Wasn’t sure where to post in the forums related to tonight’s presentation. Thanks!
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The University of California – Davis (UC-Davis) seems to be leading in the field of genetic testing for horses:
Here is the link with all the tests available: https://vgl.ucdavis.edu/tests?field_species_target_id=266
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Here is an image of a pony from the barn where @Karen lives. This is a complex coat color and I would like you to take a guess as to the genetics behind it.
Karen – please hold off a week before replying what the actual color is. Everyone else, give us your best shot. If you are arriving after the answer is given, please don’t look first.
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Here’s a close up of Butter’s mane.
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And just for fun (I loved the color genetics discussion), here are a few pics. The bay leg belongs to my horse, Remy, (TB) who doesn’t have saturated black points on his legs. He was the first of many bays I’ve had that didn’t have high black legs. He has what I call “crew socks”. His sire is dark brown and his dam was chestnut. The grulla mare belongs to a close friend. As an aside, there’s a breeder in TX, I think, that actually breeds for bald face, white legged, grulla QHs. I also included a pic that shows her single white patch on her abdomen and the way her white stops under her jaw. She has a dorsal stripe and zebra stripes on her front legs. Her mane, though, has blondish streaks. She has one blue and one brown eye. The mini donkey was at the farm for a bit and none of us, including the vets, had seen what we called a red dun donkey. Speaking of white markings, I find it interesting that they can look almost identical to what the parent(s) has, or not at all. Remy’s sire has the same right hind sock. His dam had more white. My now deceased TB mare (the chestnut) only had a tiny white spot in the middle of her face, between her eyes and her muzzle. Her sire was a liver chestnut but his mane was more coppery red, and her dam wasn’t quite as saturated as Rosa turned out to be. Neither had any white. Anyway, interesting stuff!
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Thanks for these! Love the belly shot!
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