1.Good safety of gelatin-free.The first lyophilized Varicella Vaccine, containing no gelatin from animals, invented and produced in China. Getting rid of gelatin from varicella vaccine can significantly decrease the ratio of anaphylaxis incidence .
2.Long validity period by good stability. The first approved varicella vaccine with 36 months of validity period in the world. Adopting BH-2 stabilizer with own IP rights (Chinese patent granted No.: ZL200910138411.6, International patent application No.: PCT/CN2009/001405) greatly enhances the stability of the product and ensures the validity period for 36 months under the storage condition.
3.Better protection with high titer and immune eff Varicella Vaccine(Live) Live Bioproducts Pharmaceutical,Live High Potency Medicine,Live Preventive Pharmaceutical,Varicella Biopharmaceutical Live Changchun BCHT Biotechnology Co. , http://www.ccbcht.com
icacy. It`s documented that compared with the varicella vaccine of low titer, high titer vaccine can reduce breakthrough cases by nearly 75% in vaccination. Of all released batches of Varicella Vaccine from BCHT, the titers are not less than 10000 PFU/dose tested by National Institutes for Food and Drug Control.
Causes of Cucumber Flowers topping and Preventive Measures
Cucumbers planted in cool seasons often exhibit flower topping phenomenon, which means that the top of the plant does not form the heart and the head of the flower appears. Topping the flowers will not only delay the growth and development of cucumbers, but also affect their yield and quality. Therefore, we should promptly identify the reasons for symptomatic prevention and treatment. Causes: 1. Burning roots topping: Due to overdosing of organic fertilizer applied during or after planting, and watering after planting is not timely, the relative water content of the soil is lower than 65%, and the concentration of soil solution is high, leading to apex formation. Rusted or dead, making root absorption difficult to produce flower topping. 2. Topping roots: When the ground temperature in the shed is lower than 10°C and the relative soil moisture content is higher than 75%, the growth of the cucumber roots is limited, resulting in the roots of the roots and the phenomenon of flower topping. 3, because the night temperature is lower than 10 °C, it will lead to uneven foliage or shrinkage, plant dwarf and dystrophic flowers topping. 4. Injuring the roots of flowers: There is a small amount of melon seedlings or the roots of plants that have been damaged. They have not been able to recover for a long period of time, causing the plants to absorb nutrients and suppressing them, resulting in flower topping. Control methods: 1, for the flowering caused by burning root, should be watered in time, the relative soil moisture content of more than 65%, after watering, timely cultivator. 2. For the root-type flower topping, the ground temperature of the greenhouse should be raised by 10°C or more. When it is found that the roots appear to be immersed in gray water, the watering must be stopped, the cultivator must be cultivated in time, and the soil can be sunk when necessary. At the same time, remove the small melons and ensure the roots. When a new root grows, it can be turned into normal management. 3, for the low temperature caused by the top of the flower, to try to improve the night temperature, the temperature requirements for the first half of the night to reach 15 °C, the latter part of the night can be maintained at 10 °C. 4. Topping the flowers caused by the root damage: To minimize root damage when cultivating, in order to improve the vitality of the root system.