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[Myopathies in a riding horse stable]
1Institut für Tierernährung Tieräztlichen Hochschule Hannover.
Tierarztliche Praxis
|April 1, 1991
Summary
A combined vitamin E and selenium deficiency is presumed in saddle-horse myopathies. Supplementation is crucial, but horses have low tolerance for excess selenium, necessitating careful dosage to avoid toxicity.
Area of Science:
- Equine nutrition
- Veterinary medicine
- Biochemistry
Context:
- Myopathies in saddle horses can stem from nutritional deficiencies.
- Excluding other causes like exertional myopathy or ionophore intoxication is essential.
- Understanding nutrient requirements is key for equine health.
Purpose:
- To investigate potential combined vitamin E and selenium deficiency as a cause of myopathy in saddle horses.
- To outline diagnostic exclusions for equine myopathies.
- To detail recommended and toxic levels of selenium and vitamin E for horses.
Summary:
- A case report suggests combined vitamin E and selenium deficiency in six saddle horses with myopathy.
- Diagnostic exclusions included exertional myopathy and ionophore intoxication.
- Recommended selenium intake is 0.1-0.2 mg/kg dry matter, with a low tolerance for excess.
- Vitamin E requirements range from 0.25-1 mg/kg bodyweight, influenced by diet and performance.
Impact:
- Highlights the importance of balanced vitamin E and selenium levels in equine diets.
- Provides practical information on supplementation and toxicity risks of selenium in horses.
- Informs veterinary diagnosis and treatment strategies for equine myopathies.