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The Influence of Alfalfa Hay and Fractions of Alfalfa Hay upon the Digestibility of Oat Silage^1,2,

University of Illinois

Abstract

A series of balance studies were conducted to determine the influence of alfalfa hay and fractions of alfalfa hay upon the digestibility of oat silage. Six Hereford yearling steers were used in a 6 x 6 latin square design with each steer receiving each of the six treatments. Apparent digestion coefficients were determined for the organic matter, protein, crude fiber, ether extract and N.F.E. of the oat silage.

The results showed that the addition of 2 lb. of alfalfa hay or its equivalent in energy, protein, or ash to a ration consisting of oat silage and a calcium-phosphorus mineral mixture did not increase the digestibility of the oat silage.

¹ This paper is part of a thesis submitted by the senior author to the Graduate College, University of Illinois, in partial fulfillment of the requirements for the degree of Doctor of Philosophy in Animal Science.

² Published with the approval of the Illinois Agricultural Experiment Station.

³ Present address: Aero Medical Laboratory, Wright Air Development Center, Wright-Patterson Air Force Base, Ohio.

⁴ Department of Animal Science, Urbana.