14 results about "Crustacean" patented technology

The application provides application of cholesterol in preparation of a feed additive, a feed and a preparation method, and comprises the application of cholesterol or a feed-acceptable ester thereof in preparation of a feed additive for crustaceans, is used for regulating lipid metabolism of the crustaceans, and improves the antioxidant capacity of the crustaceans. The content of animal protein source in the feed is not higher than 30%. In the application, the cholesterol is added in the feed of the crustaceans as a functional additive of sterols in a low dose, on the one hand, effective addition of the cholesterol can significantly improve the growth performance of the crustaceans under the condition of low fish meal feed, on the other hand, the lipid metabolism and the antioxidant capacity of the crustaceans can be regulated, and the physiological health is maintained.

A containment system specifically adapted to hold crabs and other crustaceans either in an aquaculture storage tank of a recirculating aquaculture system or outside of the storage tank includes tray compartments that slidably engage shelf projections or tracks extending from sidewalls or upright posts of a support frame. The top tray lid is latched, and handles are provided on the tray sidewalls. A removable sleeve attached to the tray deters crabs from evacuating the tray compartment when the tray lid is opened. The support frame is supported for rolling movement. Each tray compartment has porous walls and houses one or multiple crabs. Multiple tray compartments may be housed into the support frame in columns and rows as desired. The containment assembly (multiple frames and multiple tray compartments) may be lowered into or raised out of the aquaculture storage tank with automated equipment.

The purpose of the present invention is to provide a highly palatable crustacean paste-like food that utilizes the shells and other residua parts of crustaceans, and a method for producing same.　The highly palatable crustacean paste-like food is made from crustacean ingredients including shells and viscera, by a method comprising the steps of: mixing the crustacean ingredients and citrate; heat-treating the crustacean ingredients at a pH of 6-10; and making the heat-treated crustacean ingredients into a paste.

This invention relates to the field of aquaculture feed compositions, and specifically to the feeding and aquaculture of aquatic organisms, including fish such as sea bream and crustaceans such as shrimp. The invention provides an aquaculture feed composition in pellet form, the aquaculture feed composition having a specific size, containing a high weight percentage of protein, and including a carbon source. Results show that this aquaculture feed composition has different benefits than prior art aquaculture feed compositions.

This application relates to a cooking control method, system, and smart appliance. The method includes: during the cooking process of a target ingredient, acquiring ingredient temperature distribution information and ingredient quality information corresponding to multiple preset cooking time periods; the target ingredient is a crustacean; determining the ingredient joint region temperature information corresponding to the multiple preset cooking time periods based on the ingredient temperature distribution information; performing data fusion processing on the ingredient joint region temperature information and ingredient quality information to obtain ingredient maturity information corresponding to the multiple preset cooking time periods; and adjusting the cooking temperature corresponding to the multiple preset cooking time periods based on the ingredient maturity information. This application determines the maturity of crustaceans during the cooking process based on ingredient quality and ingredient joint region temperature, and adjusts the cooking temperature based on maturity, improving the accuracy and reliability of maturity judgment and realizing personalized and precise cooking of crustaceans.

This invention provides the application of lanosterols in the preparation of crustacean feed additives and related feeds, including lanosterols or their feed-acceptable esters, in the preparation of crustacean feed additives to improve the growth performance and maintain the physiological health of crustaceans, including regulating lipid metabolism, enhancing antioxidant capacity, and / or improving digestive enzyme activity. This invention provides a novel, efficient, and cost-optimized functional additive for crustacean feed, offering an effective cholesterol alternative or supplement to reduce feed costs; and significantly improving the growth performance of crustaceans under low-fishmeal feed conditions while systematically regulating and maintaining their physiological health.

This invention provides an aquatic feed composition suitable for farmed fish or farmed crustaceans, the composition comprising hemp seed product, wherein the hemp seed product contains 25% to 100% by weight of protein and is present in the composition in an amount of 5% to 100% by weight. A method for producing and using the aquatic feed composition is also provided.

The application relates to application of ginkgo biloba lactone A in preparation of drugs against white spot syndrome, aiming at the problem that effective treatment drugs are still lacking for the destructive damage of white spot syndrome virus (WSSV) to aquatic crustaceans, and providing a new application of ginkgo biloba lactone A; through in-vitro experiment of Hpt cells of astacus leptodactylus and in-vivo feeding experiment of astacus leptodactylus, it is verified that the ginkgo biloba lactone A can significantly inhibit WSSV replication at a concentration of 100 muM; the astacus leptodactylus is fed with 40 mg / kg feed for 10 days, the survival rate after being infected with WSSV is increased by about 53.3%, meanwhile, the expression of immune-related genes is up-regulated, the apoptosis rate of blood cells is reduced, and the virus replication is significantly inhibited; a safe and efficient new drug for the prevention and control of WSSV in aquatic breeding is provided, and has important industrial application value.

This invention belongs to the field of biomass material modification and provides an environmentally friendly chitosan with a high degree of deacetylation and its preparation method. This invention employs a green process route that combines low-temperature enzymatic pretreatment with deep eutectic solvent synergistic treatment of crustacean biomass raw materials, followed by ionic liquid-assisted alkaline deacetylation and membrane separation electrodialysis solvent recovery. This achieves the preparation of high-quality chitosan with a degree of deacetylation of 90.0–98.0%, ash content as low as 0.15–1.0 wt%, and controllable molecular weight. It solves the problems of severe molecular chain degradation and high ash residue caused by traditional strong-alkali deacetylation, the contradiction between achieving homogeneous dissolution and long-term stability in multiphase high-solids systems, and the environmental burden caused by difficult solvent recovery. This invention has broad application value in the fields of biomedicine, food additives, and water treatment materials.

Provided is an aquacultured crustacean having improved umami, uses thereof, and a method for producing the same. The crustacean does not burrow in sand, contain glycine and alanine, and has 2400 mg or more of free amino acids per 100 g of abdominal muscle. The content of glycine is 550 mg or more per 100 g of abdominal muscle, and the content of alanine is 140 mg or more per 100 g of abdominal muscle.

The present application relates to the technical field of marine biological culture, in particular to a matrix type intelligent offshore culture platform, comprising a platform main body; further comprising a position adjusting mechanism, a cleaning mechanism and multiple groups of culture mechanisms, the position adjusting mechanism and the cleaning mechanism are both installed on the platform main body, and the multiple groups of culture mechanisms are all installed on the position adjusting mechanism; the platform main body supports the culture mechanisms, the position adjusting mechanism and the cleaning mechanism, and the position adjusting mechanism rotates the culture mechanisms; the marine organisms are put into the culture mechanisms for culture, and the culture mechanisms are rotated periodically through the adjusting mechanism to adjust the positions of the culture mechanisms, so that the cultured marine organisms can all contact with the seawater with strong flow, the excrement in the culture mechanisms is conveniently washed away, the activity of the marine organisms is improved, the meat tightness of the marine organisms is improved, and then the crustaceans adsorbed on the bottom of the culture mechanisms are cleaned periodically through the cleaning mechanism.

This invention discloses a chitinase derived from tea plants, its preparation method, and its applications in the field of bioengineering technology. The invention clones the chitinase gene fragment CsChit1B from tea plants, ligates it into an expression vector, constructs a recombinant expression plasmid, transforms the recombinant expression plasmid into host cells to obtain a recombinant engineered strain, induces expression in the recombinant engineered strain, obtains the expression product, and isolates and purifies the expression product to obtain the chitinase derived from tea plants, achieving efficient heterologous expression of chitinase CsChit1B. The recombinant chitinase CsChit1B exhibits excellent catalytic performance: it maintains good stability within the range of 10-60 °C and pH range of 5.0-10.0, retaining a relative activity of over 80%. This enzyme can efficiently degrade the chitin in the cell walls of *Anthracis chinensis* and *Polytrichum pseudobulb*, while also showing efficient degradation ability for highly deacetylated chitosan, demonstrating great application potential in agricultural disease control and crustacean waste resource utilization.

The present invention relates to an intensive photoheterotrophic culture process in high salinity for crustaceans, specifically white shrimp Litopenaeus vannamei. The system allows for better production control by reducing water exchange and discharges into the environment, thus controlling the introduction of harmful agents (pathogens, toxins, predators) and enabling shrimp farming in extreme (desert) regions, where the salinity of the culture system increases significantly due to temperature, solar radiation, and winds, and where there is a lack of fresh water.

The present invention relates to a feed composition suitable for feeding crustaceans comprising mannose oligosaccharides. The invention also relates to the use of mannose oligosaccharide compositions for feeding crustaceans. The invention also relates to crustaceans as a food source, in particular shrimp of the species Litopenaeus vannamei or Penaeus monodon, fed with the feed composition comprising mannose oligosaccharides.