genetic diseases

glycogen branching enzyme deficiency

fatal, lacks the enzyme necessary to store sugar, abortion, sudden death (Gb)

HC/HERDA)

lack of adhesion within dermis due to a collagen defect, (Hrd)

common signs of herda

extreme tearing of the skin, not healing normally

HYPP

muscular disease, skeletal muscle Na channel defect (H)

HYPP symptoms

uncontrolled muscle twitching or profound muscle weakness and lead to collapse/ death

PSSMI

affect glycogen synthase enzyme stores, abnormal amounts of muscle glycogen, 20 breeds identified (PI)

PSSMI symptoms

skin twitching, stiffness, painful muscles,

MH

triggered when exposed to anesthesia, extreme exercise, or stress (MH)

MH symptoms 

high temp, high pulse, high blood pressure, sweating, acidosis, muscle rigidity can all be fatal 

MYHM

The immune system attacks the horse’s skeletal muscles (IMM)

MYHM symptoms

severe muscular atrophy following an autoimmune event, depression, loss of appetite, fever, stiffness, difficulty standing

LWO

pure white foals die within a few days, undeveloped nerves in the foal’s digestive system

appaloosas

night blindness, can’t see low to no light 

its recessive