AQUACULTURE SYSTEM INCLUDING BIOFILTER FOR PURIFYING WATER IN CULTURE POND AND RESTRAINING INFECTIOUS DISEASE

摘要

PROBLEM TO BE SOLVED: To provide a culture method that prevents pond water pollution due to excrement and feed residue produced in a shrimp culture pond, and infectious diseases caused by pathogenic bacteria and virus, and limits the use of carcinogenic chemicals used by fishermen and the use of a large amount of antibiotics which is a serious threat to human health, to restrain the appearance of antibiotic resistant bacteria.SOLUTION: An inter-gravel cleaning method used for river water cleaning is improved to form a microflora flock body implanted on or magnetically attracted to a fixed bed filled with granular iron type artificial zeolite that absorbs iron ions and carries ferromagnetic iron powder, and culture pond water flows through and contacts the microflora flock body to control a biological environment, to eliminate water pollution generated in the culture pond water and to suppress the growth of infectious disease bacteria and virus by the antimicrobial/antivirus microflora implanted on the fixed bed, thus providing the culture method that can restrain the use of carcinogenic chemicals and the large amount of antibiotics by this suppression.