July-August is the peak period of growth of P. vannamei. At this time, the water temperature is high, the shrimp grows fast, the food intake is large, the excrement is large, the water quality is easily deteriorated, and it is easy to cause flooding ponds and various diseases. In order to ensure the healthy and safe growth of Penaeus vannamei, the following management measures shall be taken during this period:

Regulate the quality of water to maintain daily morning and noon start oxygen increase 2-3 hours, in case of low pressure hot weather should extend the boot time. At the same time, according to the changes in water quality, it is necessary to exchange new water, change the water in a small number of ways, replace 1/3 of the pool water every 7-8 days, and then raise the water level appropriately and keep it above 1.8 meters. In addition, due to the large amount of feed in the shrimp ponds, the amount of excreta in the pool, and the increase in water pollution, the color of the water becomes thicker. Zeolite powder should be applied on a regular basis to control the water color. Difficult to change the water of shrimp ponds, EM bacteria or bacteria can be used and nitrifying bacteria to improve water quality, splash 2 times a month, can effectively decompose the pool of organic matter, reduce the concentration of ammonia in water and nitrite.

Feeding quantity should be controlled by scattered feeding and small amount of meals. Feeding 3-4 times a day, the amount of feed will be 70-80% in the morning and 20-30% in the daytime, depending on the weather, water quality, shrimp health and activity.

Prevent Diseases From July to August, water bodies should be sterilized on a regular basis and generally be disinfected 15-20 days. Disinfectant drugs can use super iodine quaternary ammonium salt, bromochlorohydantoin, dibromohydantoin and EM bacteria, nitrifying bacteria and other environmental drugs. At the same time, vitamin C, immune polysaccharides, and viral additives should be added to the feed regularly to enhance the disease resistance of shrimp.

Round-fishing and dredging The shrimp grows quickly in July and August, and the amount of shrimp in the pond is too high. During the aquaculture process, large shrimps should be caught in time, and shrimps of commercial specifications will be caught and listed to maintain a reasonable shrimp density in the pond and promote shrimps. Grow.

We can supply Lorlatinib powder and Lorlatinib Intermediates with high quality and low price, the best manufacturer in China. The CAS No are 1454846-35-5; 1643141-20-1; 1454852-76-6; 914225-70-0; 1454847-96-1; 1454848-00-0. 

Having upholding the " integrity, profession , innovation, win-win" as business philosophy, we believe that we are able to be stronger and stronger because of the excellent quality, favorable price and full-hearted service. Welcome to email us for quota.

Lorlatinib Intermediates

Cas 1454846-35-5,Lorlatinib Intermediates,5'-Fluoro-2'-Iodoacetophenone

Shijiazhuang Dingmin pharmaceutical Sciences Co.,Ltd , https://www.dingminpharma.com