Red Factor and Agouti Panel


Group of red and black horses

The red factor and agouti panel offers diagnostic tests for these two coat color markers.

Panel can be purchased on MyVGL. See below for pricing and list of specific tests included in panel.


$40 per animal

Turnaround time
2-6 business days
Tests in This Panel

Agouti (Bay/Black)

The agouti gene controls the distribution of black pigment, and determines whether a horse will have a bay or black base coat color.

Red Factor

The extension gene, or red factor, determines whether a horse will have a chestnut base coat color or a black or bay base coat color.
Type of Sample