Learn about one of the tests we do: Miniature ACAN panel

This panel includes four versions of the ACAN gene that cause dwarfism in pure and part-bred Miniatures, American Shetlands, and other breeds incorporating these bloodlines. These are known as D1, D2, D3* and D4. Additional types of ACAN dwarfism will be added as they are found.

Horses that test positive for any of the tests in the ACAN panel should not be mated to other horses that have also tested positive. This is true even when they are positive for different tests, ie. one for D2 and one for D4.

We recommend using the Miniature ACAN panel or Miniature full panel for all stallions or stallion prospects. If the stallion is a carrier, mares going to them should also be tested.

Gene or region and technical reference

Gene: ACAN (). Reference:

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