China has planted 33.34 million hectares of corn per year. The straw yield is calculated at 6,000-7,500 kilograms per hectare. It can produce 2,000 to 250 billion kilograms of straw per year. It can be a good resource if it can be used reasonably. According to research and analysis, the digestion energy contained in corn stover is 534 kcal/kg, and it is rich in nutrients, and the total energy is equivalent to that of pasture. In particular, sweet corn, high-lying corn and other straws are soft and juicy, with high sugar content and high soluble matter content. They are high-quality feed. Corn stalk silage is the use of lactic acid bacteria in the green feed, fermenting the feed under anaerobic conditions, converting some of the sugar source in the feed into lactic acid, reducing the pH of the silage to below 4.2, to inhibit other Aerobic microorganisms such as molds, spoilage bacteria, etc., grow and grow, so as to achieve the purpose of long-term storage of green feed. In the silage process, you need to pay attention to the following points: First, moisture Usually, the water content of the crop straw we harvest is less than 55%, so we should add water to the straw to make the water content of the straw reach about 55%. Because the water is too much, the beneficial microorganisms are not easy to act on the straw and flow away with the water, thus reducing the effective effect of the beneficial bacteria on the straw, affecting the growth of the acid-producing bacteria, and enhancing the growth of the anaerobic spoilage bacteria, resulting in the straw rot. However, the water should not be too small, too little water is not easy to cause anaerobic environment and can not provide the water conditions necessary for the growth of beneficial bacteria, and can not make the distribution of beneficial bacteria evenly, also affect the growth of acid-producing bacteria, up to To the desired acidity and the purpose of inhibiting harmful bacteria, it is also easy to cause straw mold. Second, compaction and sealing Compaction is to reduce the air of straw silage, to achieve an anaerobic environment as soon as possible to facilitate the fermentation process of acid-producing bacteria, to avoid the growth of harmful mold, so the silage needs to be compacted. On the one hand, the seal is to prevent the outside air from entering, thereby affecting the anaerobic fermentation process of the acid-producing bacteria; on the other hand, in order to prevent the entry of external bacteria, the secondary fermentation of the straw is caused. Third, the length of the straw The length of straw smash has a certain influence on the quality of silage. If the straw is too long, the soluble carbohydrates in the straw are not easily released, and the acid-producing bacteria cannot use these soluble carbohydrates to ferment lactic acid, thus affecting the quality of silage. However, the straw is too short, which will affect the reduction of the ruminant function of the livestock when feeding the silage straw, and reduce the utilization rate of the straw. Generally, feeding cows should be 3-5 cm suitable; if feeding sheep 2-3 cm, it is appropriate. Fourth, the quality of straw The quality of straw has a great impact on the quality of silage. The silage raw materials should be green, juicy, fresh, high-quality straw, and can not be silaged with moldy straw. Fifth, the temperature of the environment In the straw silage, attention should be paid to the appropriate ambient temperature, and the temperature should be between 15 °C and 37 °C. If the ambient temperature is too high or too low, it is not conducive to the growth of beneficial microorganisms, affecting the lactic acid fermentation of acid-producing bacteria, causing the failure of straw silage. Catwalk Steel Grating,Checker Plate Grating,Stainless Steel Grating,Steel Frame Lattice Anping Deming Metal Net Co., Ltd. , http://www.hswiremeshfence.com