Polysaccharide storage myopathy is a glycogen storage disease that accumulates in the muscle causing muscle damage. The symptoms of PSSM1 are muscle weakness, muscle atrophy, acute rhabdomyolysis and a reluctance of the horse to move. This test is patented and subcontracted to the patent holding laboratory.

Transmission

Incomplete dominance

Breed

Appaloosa, Belgian draft, Paint horse, Percheron, Quarter Horse