Attachment 4

Silvery Moon xx is a Bay Frame Overo Thoroughbred Stallion. 50% of his foals will inherit the Frame Overo pattern of irregular white patches on the body and face.

A mare with Frame Overo should not be bred to Silvery Moon, as there is a 25% chance of having a foal with OLWS (Overo Lethal White Syndrome).

Frame Overo is not always visible, so any mare which has Frame Overo in her pedigree should be tested even if she does not have white spotting herself. All Quarter Horse and American Paint Horse mares must be tested for the Frame Overo gene variant, even if they are a solid color.

A mare with a white spotting pattern caused by another genetic variant (e.g. Tobiano, White Spotting, Splashed White) can be bred to Silvery Moon without problem; however, if the variant is not known, the mare should also be tested before breeding.

Breeder Statement:

I am aware that a mare with Frame Overo should not be bred to Silvery Moon. I agree that:

o If a foal with Overo Lethal White Syndrome (OLWS) is born, I will not hold HuL Marbach responsible.

Quarter Horse and American Paint Horse

o My mare is a Quarter Horse or American Paint Horse and has tested negative for the Frame Overo gene variant (certificate attached).

All other breeds

o My mare is solid color and does not have frame overo in her pedigree o My mare has white spotting, but it is due to another known genetic variant (which? ______) o My mare has been tested and does not have the Frame Overo gene variant (certificate attached).

Date, Location Signature