Horse

Severe combined immunodeficiency (SCID), an inherited condition primarily affecting Arabians, is characterized by an underdeveloped immune system that results in foals with elevated temperatures, respiratory stress, and diarrhea.

Lavender Foal Syndrome (LFS)

Lavender foal syndrome (LFS) is an inherited lethal coat color dilution found primarily in Arabian horses that is characterized by a dilute lavender, pale pink, or silver coat accompanied by severe neurological abnormalities.

Cerebellar Abiotrophy (CA)

Equine cerebellar abiotrophy (CA) is an inherited neurological condition found primarily in Arabian horses, and is characterized by neurological defects in foals including head tremors and ataxia.

Friesian Horse Hydrocephalus

Hydrocephalus is an inherited condition in Friesian and Friesian crosses characterized by excessive accumulation of fluid in the brain that results in severe cranial distension.

Friesian Horse Dwarfism

Dwarfism in Friesians is an inherited disorder characterized by a disproportionate growth with reduced bone length of limbs and ribs while the size of the head and length of the back are normal.

Connemara Pony Hoof Wall Separation Disease (HWSD)

Hoof wall separation disease (HWSD) is a genetic defect in Connemara Ponies characterized by a hoof wall that easily breaks and cracks, and a normal appearing coronary band.

Tobiano

Tobiano is a white spotting pattern characterized by white on the body that crosses the topline.

Splashed White Mutations – SW1, SW2, SW3, SW4, SW5, SW6, SW7 and SW8

Splashed white is a variable white spotting pattern characterized by a broad blaze, extended white markings on the legs, variable white spotting on the belly, and often one or both blue eyes. Eight mutations in two different genes have been shown to cause the splashed white pattern.

Silver

The silver dilution dilutes black/brown pigment to lighten the manes and tails of black and bay horses to a flaxen or silver gray. The silver dilution is also associated with an inherited ocular syndrome known as Multiple Congenital Ocular Anomalies (MCOA).

Sabino 1

Sabino is a white spotting pattern that is characterized by white markings on legs often accompanied by white ticking or roaning of the midsection and a blaze on the face.

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Veterinary Genetics Laboratory

Horse

Severe Combined Immunodeficiency (SCID)

Lavender Foal Syndrome (LFS)

Cerebellar Abiotrophy (CA)

Friesian Horse Hydrocephalus

Friesian Horse Dwarfism

Connemara Pony Hoof Wall Separation Disease (HWSD)

Tobiano

Splashed White Mutations – SW1, SW2, SW3, SW4, SW5, SW6, SW7 and SW8

Silver

Sabino 1

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