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Composition of a Complete Purified Equine Diet¹

Department of Veterinary Science, University of Kentucky, Lexington, Kentucky

A complete, highly palatable, readily pelleted purified equine ration was developed. The ration consists of 16% vitamin-free casein, 40% glucose, 25% cornstarch, 13% alpha-cellulose, 1% fat, 2.4% dicalcium phosphate, 1% NaCl, 0.8% K and the following trace elements and vitamins: (in ppm) Mg, 390; Zn, 20; Mn, 26; Fe, 10; Cu, 5; Co, 1.5; I, 3.6; inositol, 400; choline, 240; niacin, 45; p-aminobenzoic acid, 22; thiamine, 15; riboflavin, 4.5; Ca pantothenate, 4.5; pyridoxine, 3.5; folic acid, 2; and menadione, 0.37; (in IU/kg) vitamin A, 4400; vitamin D₂, 520; and vitamin E, 44. This ration was consumed by suckling- and weanling-age foals in excess of 25 g/kg body weight per day and resulted in 1 kg gain/day equivalent to nursing foals. Hematologic and other clinical parameters were maintained within normal ranges and the diet resulted in the passage of formed stools. The diet is believed adaptable to most equine nutrient requirement studies except selenium.

² Present address: Department of Pathology, School of Medicine, University of North Carolina, Chapel Hill, North Carolina 27514.

Manuscript received 18 February 1969.