![]()
Sweet potato fermentation offers numerous benefits when properly managed. While sweet potatoes are rich in certain minerals like calcium, phosphorus, and vitamins, they have a low protein content. Feeding pigs only sweet potatoes over a long period can lead to digestive issues, hinder the absorption of essential nutrients, and cause discomfort or irritability in the animals. To ensure balanced nutrition, it's important to mix sweet potatoes with other feed ingredients that complement their nutritional profile, promoting better growth and overall health.
**Fermentation Method**
To ferment sweet potatoes effectively, start by washing and chopping fresh tubers into small pieces. Mix them with bran, crushed grains, and a starter culture such as "gold bait" to aid the fermentation process. Adjust the moisture level of the mixture to around 65–70% for optimal microbial activity. Transfer the mixture into an airtight container—such as a plastic bag or cement pit. Begin by laying a 25–30 cm layer of bran at the bottom, then add the sweet potato mixture, pressing it down firmly to remove air pockets. Cover the top with another layer of bran, making sure not to overfill the container. Seal it tightly with plastic film and check regularly to prevent leaks or spoilage.
**Feeding Techniques**
After three days of fermentation, the material should develop a sweet, sour, and aromatic smell, indicating successful fermentation. At this point, you can calculate the feeding ratio based on the dry matter content. For every 50 kg of compound feed, replace part of it with fermented sweet potatoes. Combine the fermented material with cornmeal, soybean meal, silkworm pupae, and other additives, then offer it freely to the pigs. Ensure they have access to clean water at all times, especially after feeding.
Alternatively, mix green feed with the compound feed first before introducing cooked sweet potatoes. Feed green vegetation first, followed by the cooked compound feed. Avoid overfeeding and maintain regular feeding schedules to support digestion. Always provide sufficient drinking water to help the pigs process their food more efficiently.
**Appropriate Feeding Amounts**
The amount of sweet potato-based feed should be adjusted according to the pig’s age, weight, and sex. Overfeeding can lead to poor nutrient intake from other sources. Generally, piglets, sows, and boars should receive smaller portions. The daily feed should not exceed about 20% of the total diet. For pigs under 35 kg, feed 1.5–2 kg of sweet potatoes and green feed along with 0.8 kg of compound feed per day. For pigs weighing 35–60 kg, provide 3.5–4.5 kg of sweet potatoes and green feed, plus 0.9–1.0 kg of compound feed. Pigs over 60 kg should get 5–7.5 kg of sweet potatoes and green feed with 1–1.25 kg of compound feed daily.
**Important Considerations**
Never feed raw sweet potatoes directly to pigs, as this can cause diarrhea, indigestion, and loss of appetite. Always cook or ferment them before feeding. Sweet potatoes should be used promptly and not left out for too long. Remove any diseased or damaged tubers immediately to avoid poisoning. Piglets, sows, and boars should be fed smaller quantities of sweet potatoes. Long-term reliance on sweet potatoes without proper protein and green feed supplementation may lead to swollen or weak piglets. Always maintain a balanced and varied diet for optimal pig health.
Safety Work Clothes
Safety work clothes, reflective safety work wear, hi vis yellow coat, safety rain jacket, supplier for over 20 years.
We are golden supplier who provide high quality safety reflective workwear, Safety Vest, hi vis safety work wear, reflective rain wear, construction work pants, safety reflective bomber jacket, waterproof dry robe, high quality surfing changed robe.
Welcome to discuss more details with us.
Safety Work Clothes,Reflective Safety Work Wear,Hi Vis Yellow Coat,Safety Rain Jacket
Suzhou Golden Gamrnet MFG Co.,Ltd , https://www.svchangerobe.com