Quarter Horse

Malignant Hyperthermia (MH)

Malignant hyperthermia (MH) is a rare inherited disease that can cause a life-threatening condition triggered by anesthesia drugs.

Polysaccharide Storage Myopathy (PSSM)

Polysaccharide storage myopathy (PSSM) results in an abnormal accumulation of glycogen, the form of sugar stored in muscle, causing “tying up”.

Glycogen Branching Enzyme Deficiency (GBED)

Glycogen branching enzyme deficiency is a fatal disease of developing fetuses or newborn foals. It is inherited in some breeds and a genetic test is available.