Equine exertional rhabdomyolysis (ER, also known as tying up, azoturia, or Monday morning disease) is a syndrome that damages the muscle tissue in horses. It is usually due to overfeeding a horse carbohydrates and appears to have a genetic link.
Read more about Equine Exertional Rhabdomyolysis: Causes and Process of ER, Symptoms, Prognosis