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Utilization of Blood Acetate and Butyrate by the Isolated, Perfused Goat Rumen^{1, 2,}

Department of Dairy Science, The Pennsylvania State University, University Park

ABSTRACT

The ability of rumen tissue to remove from the blood and to metabolize organic acids was studied by circulating blood containing either labeled acetate or labeled butyrate through the vascular system of the isolated goat rumen maintained in a perfusion apparatus. Both compounds were removed from arterial blood by the rumen tissue. At the same time there were quantitative increases in unlabeled blood volatile fatty acids, indicating absorption from the rumen contents into the blood. Beat-hydroxybutyrate was the main product isolated from the metabolism of butyrate. Only small amounts of C¹⁴ from acetate were incorporated into the organic acids assayed.

¹ Authorized for publication on September 15, 1964, as Paper No. 2927 in the Journal series of the Pennsylvania Agricultural Experiment Station.

² Data presented in this paper were taken from a thesis submitted by the senior author to the Graduate School in partial fulfillment of the requirements for the Ph.D. degree.

³ Present address: Department of Dairy Science, University of Illinois, Urbana.