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A Comparison of Acetic Acid, Fed in the Form of Triacetin, with Glucose as a Nutrient in feeds^*

New Jersey Agricultural Experiment Station, New Brunswick, N. J.

ABSTRACT

Some of the organic acids of lower molecular weight play an important role in the nutrition of ruminants. Recent studies in vitro by Woodman and Evans (15) indicated that lactic and pyruvic acids and the volatile fatty acids, especially acetic acid, are the products of cellulose digestion in the rumen of cattle. Forage crops preserved by acid fermentation, such as corn, grass, and legume silages, are becoming an increasingly important part of cattle rations. These feeds contain appreciable quantities of lactic and acetic acids. It is, therefore, of practical and theoretical value to know how efficiently the energy of these low-carbon organic acids is utilized by animals.

LITERATURE REVIEW

Although work has been done on the physiological effects of acetic acid ingestion, no studies of its nutritive value have been reported in the literature. The work reported indicates that acetic acid is not a glucose former (1, 11, 12, 13) but that it is rapidly absorbed and oxidized in the animal system (9, 14).

^* Journal series paper of the New Jersey Agricultural Experiment Station, Rutgers University, Department of Dairy Husbandry.