Merikle Waters Paints & Quarters

Producing & Training Quality Family And Show Horses

Lethal White (Frame) Overo
Information & helpful links



We have provided some helpful links for those


 of you who want to learn about frame overo


 (lethal white overo LWO)




Millenium Miracle & Tristans Millenium both carry


 frame overo (LWO), which is also largely


responsible for their beautiful coat


patterns. 



If they were crossed with another


 carrier of the frame overo  gene, there would


be a 25% chance they would produce a lethal


white foal (which unfortunately always results in


euthanasia).



With Millenium Miracles color rate, as well as his


 large amount of frame patterned progeny, if

 

you were to choose to cross a frame overo


mare, your odds of getting a lethal white is more


 like a 75% risk.


 We do not reccomend you take the risk with 


any AQHA, APHA or JC mare, solid or otherwise.




Testing to be sure of your mares frame overo


 status is cheap easy insurance.




 

It is important to know that this is NOT a disease


 or defect.


It is a color gene that produces


 color when in heterozgous form (one copy).


Only if Sire and Dam both have the gene, and


 BOTH pass on the gene does it result in a


 Lethal White Foal. Due to frame overo having


 varying pattern expressions, a "solid", a visually


tobiano horse or a 'tovero' can carry frame as


 well. We reccomend testing on all quarter horse


 mares, breeding stock paints along with regular


 registry mares. The frame pattern is also in


 thoroughbred lineage, and while less common


 can be a risk as well.







We feel that it is an individual choice and want to


 provide you with the best information available.


 Please visit the following links and if you have


 further questions or concerns, contact us


 anytime!




The filly above tested to carry frame overo





Frame overo hides well within the tobiano


pattern, often going unnoticed even after


 registration with APHA. It is good to keep in


 mind how many horses are registered as the


 wrong pattern. This leaves potential for

 

"tobiano" horses, despite a pedigree full of


tobiano horses, the potential of carrying frame


 overo as well.












Frame overo examples





Examples of frame overo at work.

Some with the combination of other genes.

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