For a long time, it has been difficult to exfoliate the larvae, and it is easy to cause common diseases of sudden death. Therefore, in the practice of breeding, the following five points will increase the survival rate of pups. First, the temperature requirements. The independent living young cubs begin to peel off when they grow for about 50 days. At this time, the ideal depilation site for young cubs should be a multi-layered multi-layer stone cement board culture method in a plastic greenhouse. The larvae that are living in this way are ideal for peeling. The growth rate has been markedly accelerated, and the disease resistance has increased. There is almost no mutual killing. At this time, the temperature of the breeding site is maintained at about 33°C, which is a good temperature for the larvae to peel off. Second, the appropriate humidity. During the dehydration of young larvae, the soil moisture content in the active area should be slightly higher than that of oysters of other ages. Especially during the dehulling stage, the larvae need a certain degree of humidity to be able to peel off smoothly. At this time, the soil moisture content should be about 20%. The relative humidity in the room is between 75% and 85%. Third, feed diversification. Before the larvae are peeled off, a sufficient variety of feeds should be fed to meet their nutritional needs during peeling. Feeds for this period include: Tenebrio larvae, spiders, cockroaches, maggots, terrestrial earthworms, cockroaches, aphids, and rice moths. These insects contain different hormones in their bodies. Different hormones can play a key role in the dehiscence of young calves. Fourth, stocking density. During the dehydration of pups, the smaller the stocking density, the higher the survival rate of pups, the faster the growth rate, and the lower the dehydration mortality rate. The stocking density is about 3000 pieces per cubic meter. Fifth, careful management. The cubs are no longer eating 7 days before peeling. At this time, the feed should be replaced with fly maggots, rice moths, spiders, and small earth elements. The cubs have completely lost their ability to defend themselves during peeling and cannot protect their own safety. Therefore, Tenebrio more than 1.5 cm should be bred and fed before 10 days of depilation to prevent Tenebrio bite or eat the peeling lice.
The so-called pharmaceutical intermediates are actually some chemical raw materials or chemical products used in the pharmaceutical synthesis process. This chemical product does not require a production license for medicines, and can be produced in ordinary chemical plants. As long as it reaches a certain level, it can be used for the synthesis of medicines.
Explanation: Some chemicals used in drug synthesis Anti-Influenza Drugs,Api Oseltamivir Phosphate,Intermediate For Oseltamivir Phosphate,Vortioxetine Hydrobromide Intermediate Jinan Prosperity International Trade Co. Ltd , https://www.cnsrtrade.com
Purpose: Synthesis of medicines
Features: low profitability of production intermediates
Representative: fluorine-containing pyridines, etc.
Field: Medicine