When corn stalk is silage, the acidity of silage will be too high when lactic acid bacteria produce too much acetic acid and lactic acid. Feeding livestock and poultry with silage with high acidity will not only reduce palatability, but also cause corrosion to the teeth of livestock and poultry. The gastrointestinal tract is also irritating and corrosive. Such silages are not only detrimental to the growth and development of livestock and poultry, but also endanger their health. Practice has proved that adding appropriate amount of urea can control the silage acidity is too high, but also can increase the content of crude protein in silage and improve the nutrition of silage.
The amount of addition and its method are: When silage, corn stover can add urea 0.3% ~ 0.6%. When the moisture content of raw materials is too high, the urea can be evenly spread on the raw materials; when the moisture content of the raw materials is too low, the urea can be dissolved and stratified and evenly sprayed on the raw materials. In this way, the silage's acidity can be guaranteed.
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