Rabies Vaccine (Vero Cell) for Human Use
The first company develops and employs the technology of microcarrier bioreactor for production of Rabies Vaccine (Vero Cell) for Human Use in China. The culturing process has good repeatability, the product shows reliable quality and in reasonable stability and has the comparable effect with lyophilized formulation.
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Electrothermal hotbed settings can be divided into two types of ground and underground. Where the bed surface is flat with the ground is called underground type, it has good heat preservation and moisture retention, and it should be built in a place where the groundwater table is low, and it is often used to raise seedlings. Where the bed surface is above ground level, it is conducive to the increase of soil temperature. It should be built in a place with a high groundwater level, and it is often used as a transplant bed. The nursery bed heated by an electric heating line is generally used in combination with a plastic greenhouse and a greenhouse.
1. Equipment 1 electric heating line. It is usually 0.6mm to 0.9mm galvanized iron wire that is sheathed. At present, most of the products produced by the Shanghai Agricultural Machinery Co., Ltd. are modeled as DV series 250 to 1000 watts, and the lengths are 50 meters, 60 meters, 80 meters, 100 meters and 120 meters. 2 temperature controller. The Shanghai product is the KWD model. The controller is used with the CT10-10 and CT10-40 AC contactors produced by Tianjin No.2 Switch Factory. In areas where it is not cold, it is only heated at night. Instead of a temperature controller, it can be controlled by an electric switch. When the weather is cold, it can be turned on at night and the sun cuts off the power during the day.
In addition, fuses and knives should be connected between line spacing for safety and ease of connection. Prepare insulation materials such as shredded straw, sawdust, ash, leaves, and rice husk.
2. The wiring electric hotbed can be built on the basis of Yangshuo. During construction, excavation may be lighter than Yangshuo. Generally, the depth of excavation is 25 cm to 35 cm. Then, the insulation material such as shredded straw is filled at the bottom of the hotbed, and the thickness is 10 cm to 12 cm. , Cover and level the insulation and then spread the wire. When laying the line, the two sides of the bed are slightly dense, and the middle is slightly sparse. The wiring distance is determined according to the set power and the model of the hotline. If an 800-watt electric heating line is used with an average spacing of 8 cm, the 600-watt electric heating line has an average spacing of 6.5 cm to 7 cm. To straighten the line, do not knot, cross, first according to the prescribed line spacing at both ends of the pole insert wooden sticks, in order to winding. Each electric heating line cannot be connected in series and should be connected in parallel. The number of round trips should be even. After winding the line, install the temperature controller. As a seeding bed, cover it with 5 cm to 10 cm thick nutrient soil; as a transplant bed, the nutrient pods are placed directly.
3. Precautions 1 Application of electric heating line to avoid the exposed electric heating line, in the soil can not be piled or cross, joints do not expose the ground. 2 Electric heating lines should not be easily lengthened or cut short. After use, they should be dug out of the soil in time, and the soil should be removed, dried, and properly stored. 3 Because of the high temperature of the electrothermal hotbed, the seedlings should be excavated and the ventilation should be strengthened to prevent seedlings from growing. Due to high ground temperature, large evaporation of water, easy drying of the surface, should be sprayed in time, but should not be poured large water. 4 Seedling growth in the electrothermal hotbed is faster. Under the condition of strengthening the ventilation and hardening seedlings, the seedling period can be shortened by 10 days to 20 days compared to the Yangshuo seedlings. Therefore, it is necessary to calculate the sowing date. 5 The temperature of the electrothermal hotbed is relatively high. It is mainly used for seedlings of melons and vegetables. Solanaceous fruits and legumes and vegetables can also be used in electric hotbed nursery in areas with low winter temperatures. It is necessary to check the bed temperature frequently to prevent the nighttime temperature from being too high, resulting in lack of nutrients, poor growth, and appearance of leggy phenomenon. 6 When using, consider the capacity of the power transformer, the thickness of the power supply bus, and the capacity of the switch of the safety knife. Do not overload the power transformer. 7 The choice of electric hotbed power is related to climate, crops need to be mild and heat dissipation and other factors. The electric hotbed power per square meter: The mushroom room is 60-80W, the vegetable nursery is 90-120W, and the thermophilic crop is 120-140W. After the 8DV heating line is broken, it can be tin-welded. A 3 mm-diameter PVC sleeve should be inserted into the joint. Found that the insulation layer damage, should be promptly repaired with hot melt adhesives. When repairing the line or busbar, first dip the joint into water, then expose the joint to the water surface, and use the insulation meter to check the insulation before use.
Electric heating hotbed
Using electric hotbed nursery, bed soil warming fast, uniform and stable, generally can increase the temperature per hour 1 °C, than the average cooling bed can increase the temperature 10 °C ~ 15 °C; day and night temperature stability, temperature difference is only 3 °C ~ 4 °C; seedlings unearthed faster And uniform, than the general Yangshuo can emerge early, early Qi Mu 2 days to 5 days; seedlings grow robust, less disease.