Silage production technology

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1. Addition of urea silage: In order to increase the crude protein content in silage and meet the demand of beef cattle for crude protein, 5 kg of urea can be added per ton of silage material. The method of adding is: When the raw material is loaded, the urea is fully dissolved in water to form an aqueous solution, and then evenly sprayed on the raw material. In addition to urea, 3-4 kg of urea phosphate can be added to each ton of silage material. This will not only increase the nutrient content of nitrogen and phosphorus in the silage material, but also enable the silage to have a faster acidity level and effectively preserve it. Silage nutrition. 2. Adding silage of trace elements: To increase the nutritional value of silage, 0.5 g of copper sulfate, 5 g of manganese sulfate, 2 g of zinc sulfate, 1 g of cobalt chloride, 0.1 g of sodium iodide, and sodium sulfate can be added per ton of silage material 0.5 kg. After thoroughly mixing and dissolving these trace elements in water, the silage can be sprayed evenly on the raw materials. 3, add lactic acid bacteria silage: inoculation of lactic acid bacteria can promote lactic acid fermentation, increase lactic acid content, in order to maintain the quality of silage. The strains currently used are mainly Lactobacillus delbrueckii (available from local pharmaceutical companies or hospitals). Generally, 0.5 liter of lactic acid bacteria culture or 450 grams of lactic acid bacteria is added per ton of silage material, and care should be taken to mix it with the feed when adding it. . 4. Adding Formaldehyde (also known as Formalin) Silage: It can effectively inhibit the bacteria and prevent silage during the silage process. Generally adding 3-5 kg ​​of formaldehyde to 85% of formaldehyde per ton of silage to ensure no spoilage activity in the silage process, thus reducing the dry matter loss in the feed by more than 50% and the feed digestibility by 20%. . 5, add acid silage: Add appropriate amount of acid for silage, can supplement the fermentation acidity, further inhibit the growth of spoilage bacteria and mold. Commonly used additives include formic acid: 3 kg per ton of grass forage, and 5 kg per ton of legume forage. However, corn stalk silage generally does not add formic acid. When using formic acid, care should be taken not to contact the skin to avoid burns. 6, semi-dry silage: The silage drying to semi-dry, moisture content of 45% -55%, smashed closed silage. The dry matter content of this kind of semi-dry silage is about 1 times higher than that of silage, and it is rich in nutrients, low in acidity, aromatic in smell, and suitable in palatability. It can improve the appetite and digestion of beef cattle more than hay and silage in general. , to achieve faster fattening purposes.

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