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Grasping Genetics

Splashed White (SW1–SW8) In Horses: What Do These Variants Mean?

Splashed White testing can be confusing — especially when results are written like SW1/SW7. In this article, we break down SW1–SW8 by gene (MITF vs PAX3), explain compound heterozygous vs true homozygous, and outline key breeding cautions, including deafness risk and potential non-viable genotypes when stacking Splash variants.

Description

One In A Million Dun is a 2020 chestnut dun splash white Quarter Horse stallion, registered AQHA and APHA and standing 15.0 hands. He is by CS Silverado Smoke (by Roan Silverado Storm) and out of CBC Dun N Tnt, a daughter of Dun It With Dynomite. He stands at Blue Smokey Stable in Wuustwezel, Antwerpen, Belgium, for a €800 EUR stud fee. Listed breeding terms: Multiple mare discount. He is owned by Blue Smokey Stable. Breedings are available by cooled transported semen and frozen transported semen. Shipping is listed to Europe.

One In A Million Dun tests N/N for HYPP, PSSM, HERDA, GBED, OLWS, MYHM and MH. Colour testing: e/e, a/a, D/D, n/SW1, n/SW7. He is nominated to Nederlandse Quarter Horse Associatie.

Last updated November 8, 2026

Frequently asked questions about One In A Million Dun

What is One In A Million Dun's stud fee?

One In A Million Dun's stud fee is €800 EUR. Listed terms: Multiple mare discount.

Where does One In A Million Dun stand?

One In A Million Dun stands at Blue Smokey Stable, Wuustwezel, Antwerpen 2990, Belgium. Breeding is managed by Blue Smokey Stable. He is owned by Blue Smokey Stable.

Who are One In A Million Dun's sire and dam?

One In A Million Dun is by CS Silverado Smoke (by Roan Silverado Storm) and out of CBC Dun N Tnt, a daughter of Dun It With Dynomite.

How is One In A Million Dun available for breeding?

Breedings are available by cooled transported semen and frozen transported semen. International shipping is listed to Europe.

What are One In A Million Dun's genetic test results?

One In A Million Dun tests N/N for HYPP, PSSM, HERDA, GBED, OLWS, MYHM and MH. Colour testing: e/e, a/a, D/D, n/SW1, n/SW7.

Which programs is One In A Million Dun nominated to?

One In A Million Dun is nominated to Nederlandse Quarter Horse Associatie.

What colour is One In A Million Dun, and when was he foaled?

One In A Million Dun is a chestnut dun splash white Quarter Horse foaled in 2020. He stands 15.0 hands. He is registered AQHA and APHA.

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