Check the listing for details. Apple-A-Day Electrolyte for Horses. Condition: New. Listed at 19.98 USD. This original apple-flavored electrolyte/mineral replacement helps keep horses hydrated after a strenuous workout. Unbalanced electrolytes and minerals can cause muscle stiffness, tiredness and dehydration. Restores electrolytes, prevents dehydration and aids appetite and water consumption when used as a daily feed supplement. Each 1 oz powder dose contains 12% min potassium, 36.5% max salt, 21% max sodium, 6.9% max calcium, 0.5% min magnesium, manganese, zinc, iron, copper and cobalt. Dosage in normal temperatures: 1/2 oz daily for light work, 1 oz daily for moderate work, 1-1/2 oz daily for heavy training. Use 2 oz daily for intense training in hot, humid weather. Mix with feed. 1 oz scoop included. 5 lbs = 2 month supply. 5 lbs If for any reason you are not satisfied with a Finish Line product, simply write to Finish Line and send your returned product back for a refund or replacement, whichever you prefer.