Processing straw by fermentation to feed sheep

The straw is transformed into nutrient-rich grass powder, which is highly favored by sheep and helps them gain weight quickly. This method of processing straw into grass powder is simple and effective, solving the problem of storing green feed while significantly improving feed utilization. Here’s a detailed introduction to the technology. **First, raw materials**: Any non-toxic crop straw or by-products from grain and cotton processing can be used as raw materials. It's important to ensure the straw is dry before processing. **Second, crushing**: The straw is crushed into grass powder measuring 1-2 cm using a hammer mill. Grasses like grasses should be processed separately from legumes for better results in further steps. **Third, fermentation**: Mix the crushed grass powder and leguminous grass powder in a 3:1 ratio. Add warm water (30-40 degrees Celsius) to the mixture until it can be squeezed into a ball by hand. Then, loosen the mixture and stack it in a sheltered corner, forming a square pile about 40 cm thick and covering it with sacks. When the internal temperature reaches 40-50 degrees Celsius and the fermented material starts to smell like koji, the process is complete. A small portion of the fermented grass powder should be saved to start the next batch. For each 100 kg of fermented grass powder, add 0.5-1 kg of salt and 0.5 kg of bone meal, along with 25-30 kg of cornmeal, wheat bran, soybean curd, carrots, or cooked sweet potatoes and potatoes. Once thoroughly mixed, this becomes a nutritious grass powder suitable for feeding. **Important feeding tips**: 1. Do not feed the grass powder to weaned lambs. Sheep over two months old should gradually be introduced to the feed, starting with small amounts. 2. Non-pregnant ewes should be fed using clean feed troughs and given limited access to avoid overeating. 3. Fermented grass powder should be used within three months to prevent spoilage. This technique not only improves feed efficiency but also offers a sustainable way to utilize agricultural waste, making it an excellent choice for farmers looking to enhance their livestock production.

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