Introduce and promote China Pharmaceutical companies` APIs and intermediates to oversea market. Introduce and promote oversea pharmaceutical companies` API and intermediates to China market.
VOLSEN is capable and authorised to handle the import and export of pharmaceutical products globally - yet our expertise lies in importing from Korea
We import and export Functional Medicinal Products from Korea, working closely with our counterparts to ensure timely release from customs.
We are also available to give services if you wish to register product in China market.
Pharmaceutical Export, Pharmaceutical Import, Pharmaceutical Outsourcing, Exporting API Taizhou Volsen Chemical Co., Ltd. , http://www.volsenchem.com
Grass carp disease prevention and breeding method
During the more than ten years I engaged in aquaculture, I have learned how to effectively prevent grass carp "four diseases", increase the survival rate of grass carp, explore some rules of production, and accumulate some practical experience. We will now summarize the following. 1. Disinfection with quicklime Disinfection of dry ponds and clear ponds at the end of winter or early spring every year. Clear all kinds of debris in the pond, repair the bank, then inject new water to flood the entire bottom of the pond, and prepare the lime (it must be used The kiln's massive quicklime) is poured into the pool water and quickly immersed in the pool water until it reaches the entire pond. The amount per acre is not less than 250kg and all the leaching is completed once. After the immersion is completed, the sluice in the whole pool is immediately shaken to mix the sludge in the pool with lime water. With this disinfection method, grass carp did not occur in the culture ponds. "Four diseases", and even parasites such as anchor head lice and fish gills are rarely seen, and good fish disease prevention effects have been achieved. Second, raise fish to raise water first. The quality of pond water not only directly influences the growth of fish, but also is the key to the occurrence of fish disease. Therefore, the quality of water must be cultivated throughout the breeding process. It is usually necessary to maintain the water quality in a state where the diet is rich in organisms, the pathogenic factor is low, and dissolved oxygen is appropriate. To this end, we must adhere to observations in the morning and evening, as well as many secondary observations of the ponds. We must have a thorough and accurate grasp of the various conditions of the ponds before we can adopt appropriate adjustment measures through artificial means to keep the fish in a good living environment. Exuberant appetite and robust disease-resistance. Third, a good kind of half-year food. Robust and disease-free seedlings are also the basic conditions for high yields of fish farming. To choose a healthy body that has a small body with fat head, uniform skin color, intact scaly fins, and smooth silk. Strictly control the pooling of diseased fish species. Most farmers prefer to buy grass and fingerlings on the market. Due to the low temperature in winter and early spring season, some species that are already sick and are in a latent stage are not yet epidemic, and inexperienced people are not easy to identify, so it is very easy to buy back diseased fish species. However, as temperatures rose in the spring and summer, fish diseases became popular. Therefore, as far as possible equipped with breeding bases, to local self-sufficiency. Fourth, to prevent disease from the mouth. Guaranteeing the freshness and cleanliness of the bait is the main source of good disease from the mouth. Grass carp eats a large amount of food, as long as it is fresh, non-toxic, odor-free, water, drought and pasture can be eaten. Persist in timing, positioning, and quantification. Let the fish eat well so as not to leave the left bait, not feeding mildew and fresh bait, in case of emergency, the food intake of the fish will also change, flexibility in timely increase and decrease. Fifth, anti-pan-tang. Frequent high-temperature thunderstorms in summer make the pond water layer vulnerable to flooding. There will be some precursors before Pan Tong. For example, in a short period of time, the pond's water color suddenly becomes cloudy and the transparency becomes smaller; many blocky residues on the bottom of the pool surface to the surface; the food intake of the fish suddenly decreases or stops, and many wild fish appear along with it. Surfaces around the pond with light floating heads etc. These phenomena indicate that the pool water is already deficient in oxygen, and fresh water should be added in time. Severe flooding can result in more than 90% loss of fish in the entire pond. Pans usually occur late in the morning until morning. Therefore, we must carefully observe and prevent it. Six, timely arrest. Due to differences in the size and growth rate of the seedlings, at least three to five rounds of catching can be made within one year of the breeding cycle. Capture large and small, catch large fish that have reached the product specifications, can not only recover funds, supply the market, but also can effectively reduce the density of pond fish, improve the living environment of the pool of memory fish, and enhance the disease resistance of fish.