The additive premix is ​​easy to absorb moisture, agglomerate, moldy and degenerate, so it should be sealed and sealed with water, and the vacuum packaging effect is better. At the same time, the product must be stored in a dry, cool and dark environment. It is generally considered that the ideal storage environment conditions are: temperature of 15 to 20°C and relative humidity of 55% to 68%. For farms with large amounts of use, the summer season is best. Forced ventilation equipment is provided to ensure the quality of the product during its shelf life.
The package of additive premix is ​​used as soon as it is opened, and the unused part should be sealed and stored. The various components of the composite additive premix tend to affect each other, especially the effect of vitamins is more obvious, should pay attention to use as soon as possible, and should not be stored for a long time.
For high concentrations of single-vitamin premixes, fiberboard boxes (tubes) lined with plastic bags are used. For a class of premixes containing vitamins, a four-layer combination of three layers of kraft paper and a plastic film should be used. Sealed packaging to facilitate product preservation.
The preservative period of vitamin premixes containing no choline chloride and vitamin C should not exceed 6 months, and the storage period of composite premix containing vitamins should not exceed 1 month.
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