According to Qiao Dongming, a senior agronomist at the Municipal Seed Management Station, “secondary fermentation†refers to silage production in the ventilated silage due to the increase in temperature in the silo after feeding silage. Prevention of secondary fermentation of silage should mainly focus on the following four points: First, shredding silage should not be too long, for cattle, sheep and other ruminants, the straw cut into 0.5 to 2.0 cm is appropriate; Second, the straw moisture content should be At 60% to 70%, the storage density should be high. Generally, the suitable loading density of silage is 700 to 800 kg per cubic meter. Third, straw should be timely harvested, in particular, corn straw should be prevented from frost. Fourth, silage should be taken out each time. After the feed, the surface of the silage was covered with a plastic cloth to make it airtight. In order to effectively preserve the quality of silage and increase the nutritional value of feed, and prevent mildew from occurring, an appropriate amount of additives may be added to the silage, and care must be taken to mix it with the green feed when additives are added.
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