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Digestibility of Common Lespedeza Hay

Dairy Research Department, Louisiana Agricultural Experiment Station, Baton Rouge, La.

ABSTRACT

Two digestion trials using 4 dairy steers were made on common lespedeza hay, 80 per cent pure, cut during the bloom stage and early-seed stage.

The percentages of crude protein of the hay cut in the bloom stage and early-seed stage on the dry basis were 10.52 and 8.55, respectively. These figures are lower than those previously reported for Korean lespedeza hay. This may be due partially to the foreign matter present in the common lespedeza hay. The values found for the other nutrients compared favorably with those of Korean lespedeza hay. The digestibility of all the nutrients, with the exception of nitrogen-free extract, decreased in the late-cut hay.

The digestible protein and the total digestible nutrients for the dry matter in common lespedeza hay were found to be 5.01 per cent and 50.06 per cent, respectively, for the bloom stage, and 3.33 per cent and 48.28 per cent for the early-seed stage.