Another Foal Color Question - The Horse Forum
LinkBack Thread Tools
post #1 of 8 Old 06-29-2007, 06:32 PM Thread Starter
Join Date: May 2007
Location: Fairbanks, Alaska
Posts: 1,351
• Horses: 11
Another Foal Color Question

Figuring out foal color can be so confusing, but it is so fun to try to make guesses during the 11 month wait :)

We Bred our chesnut AQHA mare to our Sorrel/White tobiano APHA stallion.

The stallion has a tobiano Dam and an Overo sire. He has produced one very colorful foal when bred with a sabino apha mare. The stallion is not homozygous.

Our mare has produced one foal that was a mirror image of herself when bred to an AQHA stallion, and one very colorful Paint when bred to a non-homozygous stallion. The mare has white socks and a blaze, as well as a tiny bit of roaning on her barrel area.

From my previous research it seemed that a paint vs. qh breeding will create about a 50/50 chance of either, but are there any other factors that change these odds? If the foal is solid, will it likely be chesnut? If the foal is a paint, is there a chance of it being overo rather than tobiano or will it likely take on similar color characteristics to our stallion?

I am curious to hear from you color gurus :)
AKPaintLover is offline  
Sponsored Links
post #2 of 8 Old 06-29-2007, 09:32 PM
Join Date: May 2007
Location: Swansea
Posts: 167
• Horses: 0
Hmm... that is an in-depth question! I don't think I can duck out of this saying 'not enough info'...

I would say that if solid then chestnut is very likely --- I believe chestnut is a dominant allele and as such will probably show through. From the sound of it your mare is probably homozygous chestnut too which increases the likelihood.

As far as overo or tobiano goes --- it very much depends on their dominance which I do not know. However, as your stallion is tobiano this would indicate that this is dominant (presuming homozygous parents) and hence you should be looking at the options of a foal that is chestnut or tobiano.

However, I'm really not sure which one is more dominant of these two as they both seem to be of a dominant type... the balance is probably on one or the other but I'm really not sure.
Dave Singleton is offline  
post #3 of 8 Old 07-01-2007, 03:52 PM
Join Date: Jan 2007
Posts: 4,648
• Horses: 6
Chestnut and sorrel are the same color genetically. Although they are recessive genes, you are 100% guaranteed to get a chestnut/sorrel foal because both parents are this color.

It is possible, though EXTREMELY EXTREMELY unlikely to get an overo foal from this cross if either parent carries the overo gene.

The stallion is a heterozygous tobiano. You have a 50% chance of a tobiano colt and a 50% chance of a solid colt.

So you will end up with either a tobiano or solid chestnut sorrel.
bubba13 is offline  
post #4 of 8 Old 07-03-2007, 04:55 PM
Join Date: Jul 2007
Location: Oklahoma
Posts: 12
• Horses: 0
Chestnut is a recesive gene and the only way it shows is if both sides throw it. Sorrel and Chestnut are actually different shades of the same color or gene so the foal WILL be chestnut or sorrel in color it just depends on the shade. as for paint if the stud is not homozygous you have about a 50/50 on getting a colored baby. What pattern I must admit is beyond me.
jewleit is offline  
post #5 of 8 Old 07-05-2007, 08:59 PM Thread Starter
Join Date: May 2007
Location: Fairbanks, Alaska
Posts: 1,351
• Horses: 11
Thanks everyone for the feedback. I thought the odds were 50/50 for paint vs. non, but wasn't sure. It was helpful to learn about the sorrel/chesnut trait as well!

Does anyone know about the genetic cause/effect of roaning if any? How does slight roaning on the barrel factor in to the picture, if at all?

This stuff is all very interesting and confusing :)
AKPaintLover is offline  
post #6 of 8 Old 07-06-2007, 12:31 AM
Join Date: Jun 2007
Location: Channelview, TX
Posts: 30
• Horses: 0
The hole roan thing could be from an horse in her pedigree that was a roan or it could also be a number of factors like age or health, We have one horse that is kind of roan colored in his barrel area and thats becasue his previous owners diddn't take care of him and he loss alot of hair and it came back white plus hes almost as old as dirt lol but the roan shouldn't affect the color genetics any because she isn't a roan the only way to maybe get that affect is if you breed her to a grey or a roan.
RedneckCutie is offline  
post #7 of 8 Old 07-08-2007, 02:50 PM
Join Date: Jan 2007
Posts: 4,648
• Horses: 6
Actually, roaning the the barrel and flank area is called "rabicano" and is affected by a different gene. It is not a sign of age or poor health but is a coat color modifier, speckling any horse who carries the gene with white hairs on the belly and often causing a "coontail."

Gray and roan are unrelated except they are both modifiers, not coat colors. Gray horses are can be born in any color, but the gray gene gradually replaces all of the colored hairs. Similarly, roaning can happen to any colored horse.
bubba13 is offline  
post #8 of 8 Old 07-15-2007, 10:11 PM
Join Date: Jul 2007
Posts: 16
• Horses: 0
Two deffinate chestnuts bred together will result in a chestnut foal, it may be solid or with paint colouring.
Miss Neigh is offline  

Quick Reply

Register Now

In order to be able to post messages on the The Horse Forum forums, you must first register.

Already have a Horse Forum account?
Members are allowed only one account per person at the Horse Forum, so if you've made an account here in the past you'll need to continue using that account. Please do not create a new account or you may lose access to the Horse Forum. If you need help recovering your existing account, please Contact Us. We'll be glad to help!

New to the Horse Forum?
Please choose a username you will be satisfied with using for the duration of your membership at the Horse Forum. We do not change members' usernames upon request because that would make it difficult for everyone to keep track of who is who on the forum. For that reason, please do not incorporate your horse's name into your username so that you are not stuck with a username related to a horse you may no longer have some day, or use any other username you may no longer identify with or care for in the future.

User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:


Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.

Old Thread Warning
This thread is more than 90 days old. When a thread is this old, it is often better to start a new thread rather than post to it. However, If you feel you have something of value to add to this particular thread, you can do so by checking the box below before submitting your post.

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

For the best viewing experience please update your browser to Google Chrome