Studies with Sudangrass. I. Effect of Growth Stage and Level of Nitrogen Fertilizer Upon Yield of Dry Matter; Estimated Digestibility of Energy, Dry Matter and Protein; Amino Acid Composition; and Prussic Acid Potential1

Yields increased and digestibility decreased with advance in maturity. Nitrogen fertilization influenced yields markedly but had only a minor effect on digestibility of dry matter. Amino acid levels were altered by both cutting management and nitrogen fertilization. Prussic acid levels for all treatments were low and considered as safe for livestock.