Fish pond often applied grass ash effect is good

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The plant ash is an alkaline fertilizer, which is a kind of quick-acting potash fertilizer with better fertilizer effect than chemical potash fertilizer. Applying plant ash in fish ponds can not only adjust the pH, but also increase the content of potassium, phosphorus, calcium, magnesium and other elements in the fish pond. If 106.5 kilograms of ash (grain ash) is applied per acre pond, it is equivalent to providing 14.9 kg of potassium oxide, 6.8 kg of phosphorus pentoxide, and 6.39 kg of calcium oxide to the pond. If it is straw ash, it is equivalent to 8.7 kg of potassium, 0.56 kg of phosphorus pentoxide, 2.13 kg of calcium oxide, and other trace elements, which are needed for the growth of fish.

The pond is best to use grass ash to leach liquor Quanchiposa. The collected grass ash can be immersed in a dung barrel or cylinder. The leaching time is generally 4 to 6 hours. It should be noted that the plant ash must be dry ash removed from the pot and can not use the piled ash that has been rained, because the amount of potassium contained in the piled ash that has been rained has been reduced. In addition, when using grass ash in fish ponds, do not apply human feces at the same time so as not to cause loss of volatilization of ammonium nitrogen.

Influenza Vaccine

Influenza Vaccine, Live, Nasal, Freeze-dried Exclusively authorized by the WHO in China WHO
Influenza Vaccine, Live, Nasal, Freeze-dried is a cooperative project with the WHO, which has been included in Global Action Plan for Influenza Vaccines (GAP)[1]. Hundreds of millions of doses have been used in the world, and Changchun BCHT Biotechnology Co. has the exclusive right of production and

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Intranasal spray administration, no injection and no pain


The vaccine is inoculated by nasal spray, equipped with nasal spray device, and only needs to spray once a year in two nostrils to prevent influenza.
Mucosal immunity + Cellular immunity + Humoral immunity

After influenza virus attacks human body, it widely exists in nasal cavity, respiratory tract and other mucosal parts, as well as in body fluids and cells.
Vaccination of Influenza Vaccine, Live, Nasal, Freeze-dried can quickly stimulate the triple immune response of human body, and carry out defense
against viruses in different parts:
·Intranasal administration can produce mucosal immunity (IgA antibody), which forms the first immune defense line in the nasal cavity.
·Produce humoral immunity (IgG antibody) to remove influenza virus from body fluids.
·Produce cellular immunity (T cells) to remove influenza virus from cells
3+N More extensive protection
The production strains are recommended and supplied by the WHO every year.
The vaccine can not only effectively resist the vaccine strain, but also produce cross immunity to other subtypes of influenza virus.

Produced with SPF embryonated eggs


The chick embryos for vaccine production comes from SPF (specific pathogen free) chicken flocks, so the risk of exogenous pathogenic microorganism

pollution is excluded.


Free of inactivator, split agent and preservative

High protection and fast antibody production

This is the first influenza vaccine in China that has been evaluated by the protection effect of etiology in clinical stage. The protective effect of phase III
clinical trial is consistent with the literature[2] .
First, the immune barrier was formed in the nasal mucosa after LAIV vaccination. It has been reported that the antibody of nasal mucosa can be
produced in 3 days[3], which greatly shortens the time for vaccine to produce
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Changchun BCHT Biotechnology Co. , https://www.ccbcht.net