Abstract
Summary Six hays in popular use in the Piedmont region and one new hay recently developed for the climatic and soil conditions in the area were used in digestibility studies with 750-lb. Guernsey heifers. The object was to determine the gross nutrient deficiencies of these roughages. The greatest need for improvement was found to be in the TDN content of the forages. Five of the hays were deficient in digestible crude protein, but it is suggested that improving the TDN content will adequately improve the crude protein content.
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