Started from 2005,Shandong Raytan Biological Technology Co.,Ltd. (Raytan) is always focusing on the development, production and sales of Clostridium butyricum and its derivatives as one of the high-tech enterprises, is Clostridium butyricum liquid fermentation, clostridium butyricum solid fermentation, micro-ecological joint fermentation approved enterprises. With a number of automatic intelligent liquid high density anaerobic fermentation, solid fermentation, mixed feed additive fermentation production lines. Liquid fermentation volume reached 1000 cubic meters, solid fermentation volume reached 2000 cubic meters, with an annual output of 30,000 tons of solid fermentation complex Clostridium butyricum micro-ecological feed additive capacity.Raytan has an independent production workshop, laboratory and R & D center. It has developed a series of water improvement products for aquaculture, including fertilizer water series, water regulation series, bottom improvement series, nutrition stress series, antibacterial agents, feed additives, etc. In terms of water quality improvement and feeding, a variety of technologies are adopted, and attention is paid to the balance of beneficial microbial flora in the stomach and intestines of aquaculture animals. It can effectively improve water quality, promote the decomposition of residual bait and other floating organic matters, degrade harmful substances such as ammonia nitrogen, nitrite and hydrogen sulfide, increase dissolved oxygen in water, promote the growth of beneficial plankton in water, and also improve the stress resistance ability of aquaculture animals, improve their health status and maintain the ecological balance of aquaculture water body.Raytan is an original manufacturer with export qualifications for the full range of products. Rooted in the field of microecology, it is committed to providing users with the most valuable microecological products, promoting the healthy development of animal husbandry and fishery, and improving the level of human healthy life. Its products have been exported to many countries and regions in Asia, America, Europe and so on.