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Compression of Complete Diets for Horses

United States Department of Agriculture

Abstract

A report is made of some exploratory trials in the compression of mixtures of chopped hay and whole grain into cakes suitable for feeding horses. The results indicate that the kind of forage used in the mixture is important in determining the conditions of temperature and pressure required for the production of satisfactory cakes. Cakes with a specific gravity of 1.0 were produced from an alfalfa hay mixture at a temperature of 120° C. with a pressure as low as 500 pounds per square inch. However, when timothy hay was substituted for alfalfa this pressure was inadequate even though the amount of binder was increased and the time of compression lengthened. Cakes with a specific gravity of 0.69 to 0.82 were produced from a timothy hay mixture at a temperature of 53° C. with a pressure of 3,000 pounds per square inch.