Five details to pay attention to sweet potato fermentation

Five details to pay attention to sweet potato fermentation
1, adjust the moisture: the composition of a good fermented material to adjust the moisture to 65-75%, water determination method: grasping a handful of material, see the watermark between the fingers but not dripping, landing that is suitable for casual, slow water fermentation Poor moisture permeability, but also will lead to spoilage fermentation odor.
2, temperature control: fermentation start temperature should be faster than 15-20 degrees fermentation.
3, fermentation control: the material should be completely sealed but can not be compacted; when the use of non-strict tightness of the container fermentation, the outside should be wrapped or wrapped in airtight plastic bags or plastic cloth, and fastened tightly, absolutely sealed; In the process of sealed fermentation, it cannot be disassembled and tossed, and generally it can be finished in 1-3 days of fermentation (the finished product has aroma or frankincense, acid and aroma). After fermentation, the finished product should be sealed immediately after each refeed. It is best to use a large bag or a large pool to add 10-30 kilograms of independent bags while fermenting; the fermented product can be separately sealed with a small bag, or Drying and dehydration, low-temperature drying, or granulation, etc. are preserved; finished products after fermentation should be fed as required. When trials are conducted in small batches, the total weight of single batch fermentation materials should not be less than 100 kg.
4, fermentation environment: In addition, in order to ensure the fermentation effect, there are still some aspects worth noting. Such as the use of mixed fermentation as much as possible, to avoid a single material fermentation, can be appropriate to add some corn flour, wheat bran, rice bran and so on. Stacking and loading tanks should be sealed but not compacted. When taking the material from the container or bag, the container should be sealed immediately after the material is taken and it should not be exposed for too long to avoid contamination. Do not use raw materials that have been badly spoiled or have offensive odor as fermentation raw materials. If the material after fermentation is improperly stored, it will cause mildew or smell, and it cannot be fed to animals.
5. Usage and dosage of the product (fermentation product) produced after fermentation: After the fermented sweet potato feed can be fed directly, it can also be fed with a certain proportion of premixed feed, and so on.

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