Ethanol Soluble Carbohydrate (ESC)

Performance Horse Nutrition

Carbohydrates solubilized and extracted in 80% ethanol. Includes primarily monosaccharides and disaccharides (simple sugars, glucose, sucrose and fructose). ESC also includes the shortest chain fructans (FOS). These simple sugars are hydrolyzed in the small intestine and absorbed and metabolized to form energy. In horses that display “sugar sensitivities” such as in the case of Insulin Resistance, Cushing’s, Tying-Up and Obesity we are concerned with the ESC plus starch value. The sum of these values in the total diet of horses that have not shown any clinical signs but we are apprehensive about should be less than 12%, for horses that have in the past shown signs or been afflicted by one of these diseases the sum of ESC plus starch should be less than 10% dm. For such cases where the animal is suffering from one of these diseases the recommendations are to keep the combination of ESC plus starch in the total diet less than 8%. ESC is a subset of WSC.

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