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1. Forage growth and utilization are greatly affected by the season. In winter, forage grass is yellow, contains less nutrients, and livestock lack grass. In warm season, forage grass grows vigorously and nutritious. Grass can not eat more livestock. Therefore, in order to make full use of the warm-season forage in order to avoid weaknesses, the livestock can be fed in winter by being cut, dried, crushed and processed into grass pellets.
2. Feed conversion rate is high. In winter, grass particles are used to feed livestock and poultry, and less forage can be used to obtain more meat, eggs and milk.
3. small volume. Grass pellet feed is only about 1/4 of the raw hay volume, which is convenient for storage and transportation. Less dust is beneficial to the health of people and livestock. It is convenient to feed, which can simplify the feeding procedures and create conditions for intensive and mechanized livestock production.
4. Increase palatability and improve forage quality. For example, grass crickets have a special odor of coumarin, and livestock are somewhat unpleasant to eat. However, when they are made into grass granules, they become forage grasses with strong palatability and high nutritional value.
5. Expand feed sources. Such as Caragana, You Ruoyu, Yangchai, etc., their branches rough, after smashing processed into grass particles, it became a livestock favorite fodder. Other processed grass particles such as crop by-products, clams, straw, and various leaves can be used to feed livestock and poultry.
Second, grass particle processing technology
1. The most critical technique for processing grass particles is to adjust the moisture content of the raw materials. First, the moisture content of the raw material must be measured, and then the water content must be adjusted to the required moisture content. According to the determination, the use of legume forage grass particles, the optimum moisture content of 14% to 16%; grass forage grass is 13% to 15%.
2, the processing of grass particles usually use pellet feed mill. The grass powder is stirred and squeezed during the pulverization process. Under normal conditions, the temperature of the pellets just coming out of the sieve holes is about 80°C. From the high temperature to the room temperature, the water content is generally reduced by 3% to 5%. Therefore, the moisture content of the cooled grass particles does not exceed 11% to 13%. Due to the low water content, it is suitable for long-term storage without mold deterioration.
3, grass particles can be processed according to the nutritional requirements of a variety of livestock and poultry, formulated into grass particles containing different nutrients. Its particle size can be adjusted by the pulverizer and processed as required.
Third, pellet feed ingredients and effects for a variety of livestock and poultry production of compound feed, improve feed utilization. Use grass powder (green hay, crop straw) 55% to 60%, concentrate (corn, sorghum, oats, bran, etc.) 35% to 40%, minerals and vitamins 3%, urea 1% compound feed, with Granulated feed pellets are pressed to pellet feed. When pressing, add 17 kg of water per 100 kg of material and add 100 mL of formaldehyde to a concentration of 37% to increase its nutrient content and digestibility. According to the experiment, eight months old lambs were produced, and they were fattened with pellets for 50 days. The average daily weight gain was 190 grams, and each weight gain was 1 kilogram, which consumed 6.4 kilograms of feed. The use of pellet feed to produce fat lambs, whether in pastoral or agricultural areas, is a feasible way to promote the development of the aquaculture industry. Nongbo.com
Grass pellet feed processing
First, the benefits of grass particles