Description    High levels of vitamin D in horses led to gross and microscopic calcification of soft tissues, especially the endocardium and walls of blood vessels.
Species   Equine
Signs   Agalactia, Anorexia, Ataxia, Dehydration, Dullness, Exercise intolerance, Forelimb lameness, Generalized lameness or stiffness, Generalized weakness, Heart murmur, Hindlimb lameness, Inability to stand, Lack of growth or weight gain, Nystagmus, Polydipsia, Polyuria, Reluctant to move, Seizures or syncope, Skin edema, Tachycardia, Underweight, poor condition, thin, emaciated, unthriftiness, ill thrift, Weight loss
References   Hymoller L. We Know Next to Nothing About Vitamin D in Horses! J Eq Vet Sci 2015;35:785 [Web Reference]
Quist EM. Diagnostic Exercise: Equine Rhabdomyolysis. Vet Pathol 2011;48:E52 [Web Reference]
Toribio RE. Disorders of Calcium and Phosphate Metabolism in Horses. Vet Clin N A Eq Pract 2011;27:129 [Web Reference]
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