Corn silage is a popular forage for ruminant animals because it is high in energy and digestibility and is easily adapted to mechanization from the stand-crop to time of feeding. Corn silage should have a light, pleasant smell with only a slight vinegar odor. It should be slightly brown to dark green. If it is dark brown or has an odor that is fruity, yeasty, burnt or rancid (butyric acid), excessive heating or improper fermentation has occurred. Knowledge of the silage process often explains why some silage may be of poor quality.
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