After the sweet potatoes were harvested and used as animal feed, the scorpions (likely a typo for "scrap" or "residue") left in the fields were usually discarded and burned in the spring. This traditional practice is not only inefficient but also harmful to the environment. Fortunately, there's now an innovative solution that turns these leftover sweet potato scraps into high-quality, nutritious feed. This method not only reduces waste but also brings significant benefits to farmers.
The new feed product is made by fermenting the leftover sweet potato pieces, which gives it a unique flavor profile—slightly sour, sweet, soft, ripe, fragrant, and even with a faint wine-like aroma. These characteristics greatly improve its palatability, making it highly appealing to pigs, cows, sheep, poultry, and even fish. As a result, animals eat more, grow faster, and farmers can increase their income by up to 20%.
The process is simple and effective. First, wash the sweet potatoes thoroughly to remove any impurities. Then, chop them into small pieces or grind them into a slurry. Next, add a suitable amount of a gold baby feed starter (a microbial culture) and mix well. The mixture should be compacted tightly in a container, as the denser it is, the better the fermentation will be. Cover the container with plastic film to seal it.
During the initial stages of fermentation, it's important to allow some air circulation by slightly opening the plastic film. This helps microorganisms multiply more quickly. Once the temperature rises to around 45°C, the film should be sealed completely, and the fermentation should continue under anaerobic conditions. The entire process typically takes about one day, after which the fermented feed is ready for use.
This eco-friendly and cost-effective approach not only makes use of what was once considered waste but also improves livestock health and productivity. It’s a smart and sustainable way to manage agricultural byproducts.
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