32 results about "Tetraselmis" patented technology

The invention discloses a microbial water purifying agent for snakehead culture water and a preparation method thereof. The preparation method comprises the following steps: adding 20-40 parts by weight of surface-modified C8 and C18 alkyl-chain magnetic silicon balls into 200-400 parts by weight of water; adding 80-100 parts by weight of microbial reagent, including 60-80 parts of Synechococcus, 60-80 parts of Oscillatoria, 10-30 parts of Nitrosococcus, 10-30 parts of Nitrosolobus, 10-20 parts of iron bacteria, 10-20 parts of Leptothrix, 1-5 parts of Thiothrix, 1-5 parts of Vitreoscilla, 30-70 parts of paramecium, 30-70 parts of infusorian, 30-50 parts of Tetraselmis and 30-50 parts of blue algae; and adding 50-90 parts by weight of beef extract peptone agar culture medium, and culturing. The microbial water purifying agent can be added into a snakehead culture tank to achieve the goal of purifying culture tank water.

The invention discloses a purification method of a cyclina sinensis finished product. The purification method comprises the following steps: washing an obtained cyclina sinensis finished product; removing sludge; putting into a temporary cultivation tank; during a cultivation period, adding a microalgae preparation into sand-filtered seawater, wherein the microalgae is a mixture of skeletonema, tetraselmis and dicrateria inornata which are mixed at a random ratio; after 5 hours, putting the cyclina sinensis finished product into another temporary cultivation tank; adding a microbial preparation into the sand-filtered seawater, wherein the microbial preparation contains agritol freeze-dried powder, bacillus subtilis freeze-dried powder, bacillus licheniformis freeze-dried powder, wild mushroom entity freeze-dried powder and diatomite; and culturing for 24-48 hours, renewing the water and further culturing for 4-8 hours to obtain a purified finished product. The purification method disclosed by the invention has the advantages of effectively removing heavy metals in the body of the cyclina sinensis within short time, having a quite good removal effect on escherichia coli, sphingomonas paucimobilis, vibrio and aeromonas salmonicida, and is simple to operate, short in purification time and extremely good in purification efficiency.

The invention provides a Thais bronni breeding method. The Thais bronni breeding method comprises the following steps of: collecting and incubating fertilized eggs; cultivating larvae; and cultivating juvenile mollusks, wherein the fed baits in the pelagic period of larva cultivation comprise chrysophyceae, chlorella, tetraselmis and chaetoceros in a ratio of 10:1:1:1; during metamorphosis period before juvenile mollusk period, the varieties and the amounts of the fed baits, including shrimp slices and razor clam meat, are increased along with time; and the prawn slices and the razor clam meat with a certain ratio are maintained during cultivation of the juvenile mollusks. According to the thais bronni breeding method, different bait constitutions and feeding amounts are provided for successful growth of the thais bronni in each development stage of the thais bronni. Compared with the prior art without artificial breeding, the method establishes the basis of artificial breeding of the thais bronni, so that artificial culture of the thais bronni can meet the requirements of the market.

The invention discloses a nutrition reinforcement method of improving artemia growth and increasing an EPA (eicosapentaenoic acid) content. Continuous feeding of tetraselmis can effectively improve the artemia growth and increase the EPA content when an artemia grows to 3 years. The method can increase a utilization rate of algae food, improves growth quality of the artemia and provides high-quality bait for aquaculture.

The invention discloses a cyclinasinensis purification reproduction and culture method. The method includes the processes of temporary culture of parent clams, spawning of the parent clams, trochophore hatching, D-larvae and post-larvae culture and juvenile clam culture. Microbial preparations are thrown in during the process of temporary culture of the parent clams, a chitosan decontamination agent is thrown in during the process of spawning of the parent clams, the microbial preparations are thrown in during the course of trochophore hatching, microalgae preparations are thrown in during the course of D-larvae and post-larvae culture, and juvenile clams are fed with tetraselmis in the period of juvenile clam culture till grown-up cyclinasinensis is harvested. Purification substances are thrown in the whole period from temporary culture of the parent clams to larvae culture and juvenile clam culture for purifying meat, pollution of contaminants is avoided from the source, healthiness, greenness and non-pollution in the culture process are guaranteed, the contaminants such as heavy metal, petroleum and nitrofuran derivatives in bodies of the grown-up cyclinasinensis are reduced significantly, and good effect on removal of escherichia coli, sphingomonaspaucimobilis, vibrio, aeromonassalmonicida and the like is achieved, and the grown-up cyclinasinensis completely conforming to food security can be cultured.

The invention discloses an ecological Japanese sea horse breeding method. The ecological Japanese sea horse breeding method comprises the steps of building an ecological sea horse breeding pond one week before breeding, cultivating microalgae in the built ecological breeding pond, and measuring and controlling water quality to reach newborn sea horse breeding indexes before newborn sea horses are bred. When the newborn sea horses is younger than 15 days, the released density is 1000-1200 tail / m<3>, and baits are composed of rotifer, copepods larvae, chlorella, photosynthetic bacteria, tetraselmis and fairy shrimps which are just incubated. During 15-30 days, the released density is 600-1000 tail / m<3>, baits are composed of fairy shrimps, copepods larvae and shrimp seeds, and the baits are fed into the breeding pond four times per day. A sea horse juvenile fish breeding stage comprises the step of enabling the water quality to reach juvenile fish breeding indexes before breeding. During 30-40 days, the released density is 600-800 tail / m<3>, and the baits are fed into the breeding pond three times per day. A sea horse adult fish breeding stage comprises the step of enabling the water quality to reach sea horse adult fish breeding indexes. The released density of sea horse adult fish is 200-400 tail / m<3>, baits are fresh and alive shrimps, and the baits are fed into the breeding pond three times per day. The ecological Japanese sea horse breeding method has the advantages of reducing production cost.