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Tobiano, Overo or Tovero

Equine-Reproduction.com Bulletin Board » Equine Genetics » Tobiano, Overo or Tovero « Previous Next »


Author Message
 

Tansy Brassfield
Neonate
Username: Spccutnoak

Post Number: 5
Registered: 08-2005
Posted on Wednesday, August 10, 2005 - 01:02 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

My APHA tobiano mare is out of an sorrel Overo mare and by a B&W Tovero Sire. She came out a bay tobiano with one blue eye. I bred her in feb. to our AQHA Palomino stallion. What are the chances she will throw a tobiano, or a overo or a tovero? Thanks..
 

Renee Clover
Weanling
Username: Reneec

Post Number: 28
Registered: 07-2005
Posted on Sunday, August 14, 2005 - 08:33 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

Tansy,
The more colour patterns a horse carries, the more chance they have of throwing a coloured foal.
Your mare is very likely a tovero if she has one blue eye (may not look like it, but prob carries the gene). If this is the case, then she carries both tobiano and overo, and she has a 75% chance of throwing a coloured foal when bred to a solid coloured stallion. This is the rule extracted from my Equine Colour Genetics Book;

1 pattern- 50% coloured foals
2 patterns- 75% coloured foals
3 patterns- 82.5% coloured foals
4 patterns- 93.75% coloured foals
(by pattern i mean, sabino, frame overo, splashed white or tobiano)

Hope this helps, and goodluck!!
 

Sandy D
Yearling
Username: Sbr_appaloosas

Post Number: 100
Registered: 04-2005
Posted on Monday, August 15, 2005 - 06:32 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

I would agree with Renee, that your mare is probably a tovero with having a blue eye.
I would say your chances are higher for having a tobiano foal by a solid, non paint stallion. With the second in line being a tovero and lastly an overo.
I have a tovero mare that when bred to a tobiano, produced tobiano, bred her to a solid that had a tobiano sire, produced a tobiano. Bred her to a solid, no known pinto genes, produced a tovero, re-bred her to that same stallion, produced a solid.
I think the 75% is probably correct too, as this same tovero mare has had 7 foals and all have been colored except for 1, and that was this year's foal.
You just never know what you're going to get as far as color goes unless you're dealing with a homozygous.



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