492 results about "Catfish" patented technology

The invention discloses an ecological fish farming method in a rice field, which comprises the following steps of rice field preparation, rice field transformation, fish farming facility preparation, rice seedling transplantation, biosorption, rice field disinfection, irrigation, fertilization, stocking fish seed selection, stocking fish fry disinfection, stocking and feeding management, wherein annular field fish ditches dug through the rice field transformation are V-shaped ditches arranged on the inner sides of ridges around the rice field; the biosorption utilizes a biosorption agent to adsorb heavy metal in rice field soil and irrigation water; and stocking fish seeds are selected from eight-beard catfishes. The invention further discloses rice produced by rice plants planted in the rice field using the ecological fish farming method. According to the method and the rice, an effective usable area of the rice field is increased significantly; pollution of the heavy metal such as lead and cadmium is reduced; integral benefits of fish farming in the rice field are improved; the ecological rice contains rich protein, more microelements such as iron, magnesium and calcium, and vitamin C, has no chemical pesticide residual, and is green and environment-friendly; and the content of the heavy metal such as lead and cadmium is very low.

The invention discloses a preparation method of human milk alternative fat combining enzymatic acidolysis and physical mixing. The preparation method mainly comprises the following two steps: S1, adjusting the composition (greater than 1%) of a plenty of fatty acids of catfish oil or a fractionation product of the catfish oil by virtue of acidolysis; and S2, adjusting the composition of trace fatty acids (less than 1%) of an enzymatic product by virtue of physical mixing. The raw materials catfish oil or the fractionation product of the catfish oil used by the method are wide in source and low in price, and contain a relatively high content of sn-2 palmitic acid and a relatively low content of total palmitic acid. In the acidolysis reaction, the free fatty acids used is small in proportion, and in the process, the composition and distribution of the plenty of fatty acids are emphasized at the same time as well as the composition of trace fatty acids containing polyunsaturated fatty acids with medium carbon chains and long carbon chains. The obtained product is highly similar to human milk fat and has a relatively huge market application prospect.

The invention discloses feed for controlling medicine residues of channel catfishes, which comprises the following components in the mass percent: 13.85% of puffed soybean meal, 4.0% of fermented soybean meal, 12.0% of steamed fish meal, 18.0% of rapeseed meal, 16.5% of cottonseed protein, 16.0% of rice bran, 14.32% of secondary powder, 1.8% of calcium biphosphate, 2.0% of IV-grade soybean oil, 1.0% of premix compound, 0.01% of vitamin E, 0.02% of vitamin C, 0.05% of high-temperature resistant complex enzyme preparation, 0.05% of cure accelerator and 0.4% of Chinese herbal medicine additive, and the total percent is 100%. By optimizing the components of the feed, adding Chinese herbal medicines in the feed to replace antibiotics and adding high-temperature resistant enzyme preparations, biological live bacterial preparations and the like, the purposes of improving the stability of the feed, promoting the health growth of channel catfishes, enhancing the immunity of the physique and theorganisms of fish bodies and preventing diseases are achieved, thereby finally achieving the purposes of improving the growth rate of channel catfishes, reducing the feeding cost, discarding antibiotics and controlling the medicine residues in bodies under the normal water quality environment.

The invention relates to the technical field of aquaculture, and specifically relates to feed for catfishes. The feed is prepared by the following raw materials by weight: 55-60 parts of corn flour, 20-25 parts of soybean dregs, 15-18 parts of soybean meal, 12-15 parts of corn straws, 10-12 parts of black soybean powder, 12-15 parts of wheat middlings, 6-8 parts of tubificidae powder, 5-6 parts of goat liver powder, 4-5 parts of shrimp shell powder, 5-6 parts of laver powder, 4-5 parts of dried yeast, 6-8 parts of dehydrated clover powder, 6-8 parts of leaves of asparagus lettuce, a proper amount of salt and 4-5 parts of a phagostimulant. The feed for the catfishes prepared by the invention starts with omnivorous habits of the catfishes; and raw materials such as tubificidae, goat liver, laver and asparagus lettuce are added, so that the feed can not only meet nutritional ingredients required by growth and development of the catfishes but also improve palatability of the feed; wastes of the feed are prevented; and utilization rate of the feed is increased.

The invention discloses a channel catfish immunity enhancing feed, which comprises the following components in parts by weight: 5-14 parts of meat and bone meal, 15-25 parts of rapeseed meal, 20-40 parts of de-hulled soybean meal, 0.2-0.5 part of choline chloride, 15-22 parts of wheat middling, 0.5-1 part of soybean oil, 0.2 part of vitamin premix, 0.15 part of mineral premix, 1-2 parts of calcium dihydrogen phosphate, 0.01-0.03 part of plant enzyme, 0.05-0.1 part of cholate substances, 0.03-0.06 part of a toxin adsorbent, 0.1-0.3 part of a natural plant compound and 0.1-0.3 part of a polysaccharide compound. According to the immunity enhancing feed disclosed by the invention, nonspecific immunity of the channel catfish is enhanced through various compounds, and through reasonable proportioning of various natural plants and the polysaccharide components, nonspecific immunity of the channel catfish is significantly improved and infection resistance of the fish is enhanced; and meanwhile, growth performance of the fish is improved and a food coefficient is reduced.

The invention relates to an artificial propagation method of yellow catfish fry, which is characterized in that: sexually mature yellow catfish over three years are chosen as the parent fishes; the female and male ratio is 3:1; a plurality of barrels are arranged in a spawning pond as fish nests; parent fish density in the spawning pond is 1 to 2 groups/m2; each group of parent fishes uses a barrel; the sand with a thickness ranging form 1cm to 5cm is arranged at the bottom of the barrel for the debonding of fish eggs; in spawning season, exogenous hormone is injected to the basal behind the dorsal fins of the parent fishes to induce ovulation and spermiation; an inversed conical container with smooth inner wall is used as the hatching barrel; fertilized eggs are arranged in the hatching barrel for hatching in flowing water; the dissolved oxygen in the water of the hatching barrel is larger than 5.5 mg/L; when hatching is over, fry is arranged in a cement pool for temporary rearing for 40 to 70 hours, then the fry is packaged in plastic bags with water and oxygen. The artificial propagation method of yellow catfish fry has the advantages that, well developed yellow catfish fry can be acquired; the operation is simple; the utilization rate of parent fishes is high; scale production of yellow catfish fry can be realized, and the invention has significant meaning for the intensive culture of yellow catfish.

The invention discloses high-calcium fish-meat capsicum sauce with fragrance and a preparation method thereof. The high-calcium fish-meat capsicum sauce with fragrance comprises the raw materials of catfish fishbone paste, fragrance oil, chili glutinous rice cake, lobster sauce, salted and fermented soya paste, soy sauce, chili sauce, white sesameseeds, white granulated sugar, gourmet powder, ten ingredients, fishy essence and potassium sorbate. The preparation method comprises the following steps of: adding salt into the catfish fishbone paste to be preserved; then, putting the catfish fishbone paste into the fragrance oil to be fried until the color of the catfish fishbone paste is yellowish; fishing the catfish fishbone paste as a spare fish material; respectively adding the lobster sauce and the chili sauce to be deepfried; adding the soy sauce until boiling; next, adding other components of the fish material, the salted and fermented soya paste, and the like to be fried 30-50 minutes; mixing by continuously adding proper purified water until the components are changed into sauce; filling the hot sauce into a bottle; and sterilizing and cooling to obtain the finished high-calcium fish-meat capsicum sauce with fragrance. The high-calcium fish-meat capsicum sauce with fragrance not only increases palatability of fishbone paste products, but also promotes the efficient and synthetic utilization of fresh water fish.

The invention discloses a method for preparing a high-calcium soup-stock fish ball by using channel catfish bone, which is characterized by comprising the following steps of: removing, head, tail and side wings of a fish skeleton, remaining a fish steak and ensuring that the fish skeleton has components with black skin; rinsing the fish skeleton with clean water, draining and slightly freezing the fish skeleton at 0 DEG C; crushing the slightly-frozen fish skeleton by a crusher and grinding the powder by colloid into fishbone crushed meat with the granule no more than 1mm; centrifuging and dewatering the ground fishbone crushed meat for later use; preparing the fishbone crushed meat for later use, accessories and seasonings together into an outer coating material; and evenly stirring the outer coating material with pork emulsion, sugar, salt and agar to be prepared into stuff core, placing the stuff core and the outer coating material into a forming machine for shaping and then boiling the shaped material with water to cure to obtain fish balls. By the method, the added value of products can be effectively improved, and the high-efficiency comprehensive utilization of the products can be promoted.

The invention discloses an extraction process for collagen of channel catfish skin, which comprises the following steps: firstly, impure protein of channel catfish skin scrape is removed, then channel catfish skin is decolorized, and finally breaking treatment, enzyme hydrolysis, enzyme inactivation, concentration treatment, low-temperature drying and grinding treatment are carried out on channel catfish skin to obtain the finished products. The extraction process finely and further processes and comprehensively utilizes the channel catfish skin scrape; the purity of extracted collagen II type product can reach more than 90%; the effect of scrape additional value is specially obvious; the product has wide usage scope; the whole extraction process does not have heavy metal proof, residual medicine, is healthy and safety; after being processed, the product does not have plane-source environment and water source pollution; and the extraction process flow and the device needed by the process flow are simple and have low manufacturing cost.

The invention relates to the field of aquaculture, and specifically relates to a grass carp culturing technology. According to the invention, water temperature and stocking time are controlled, such that fish fry survival rate can be improved. Different fishes are stocked at a same time, such that the pond and the water surface can be kept clean. Spotted silver carp helps in removing suspended matters, yellow-head catfish helps in reducing parasitic disease occurrence, and crucian helps in cleaning the river bottom. Therefore, grass carp quality safety is high, and farmer economic benefit is ensured.

The invention relates to a method for breeding high-quality yellow catfish. The method comprises the following steps: (1) starting circulating water; (2) selecting fingerling and putting into a culture pond; (3) guaranteeing the normal running of a circulating water system and controlling the circulating water temperature within the scope of 28-30 DEG C; feeding with mixed feed for 2-3 times per day, wherein the daily feeding volume is 3-5% of the weight of the fish in the culture pond; feeding for 28-32 days, thereby acquiring the high-quality yellow catfish. According to the invention, the mode of combining pond culture with culture pond circulating aquaculture is adopted; the culture process flow is reasonable and efficient; the survival rate of the young fish is high; the quality of the bred products is effectively increased; the manner of circulating water culture in the whole process is avoided; the breeding density requirement is met; the breeding cost is effectively lowered; the yellow catfish acquired according to the invention is high in quality, tastes nice and is green and healthy.

The invention discloses special feed for longsnout catfish in a pond. The special feed comprises raw materials in parts by weight as follows: 50-100 parts of fish meal, 5-10 parts of fairy shrimps, 10-20 parts of bean worm powder, 1-3 parts of fish oil, 0.5-1.5 parts of corn oil, 20-40 parts of bean pulp, 5-15 parts of rapeseed meal, 5-15 parts of high-gluten flour, 5-15 parts of corn flour, 10-30 parts of wheat bran, 5-14 parts of puffed sweet potato flour, 0.1-0.7 parts of glycine betaine, 15-30 parts of rice wine, 2-5 parts of soybean phospholipid and 5-15 parts of premix, wherein the premix comprises raw materials as follows: 0.01-0.4 parts of compound microelements, 1-2 parts of vitamins, 1-3 parts of mineral salt, 0.1-0.25 parts of lysine, 0.2-0.5 parts of methionine, 0.008-0.01 parts of bentonite and 2-3 parts of grape seed oil. The invention further discloses a preparation method of the special feed for the longsnout catfish in the pond. The special feed has balanced nutrition and can promote quick growth of the longsnout catfish, the death rate of the longsnout catfish is low, and a preparation method is simple and convenient to operate practically.

The invention relates to a preparation method of snapping turtle feed, which comprises 8 to 11 percent of fresh chicken entrails, 11 to 13 percent of fresh duck entrails, 11 to 13 percent of fresh and alive fish, 6 to 8 percent of fresh loach, 11 to 13 percent of fresh green shrimp, 2 to 4 percent of fresh catfish, 9 to 11 percent of fresh green bean particle, 4 to 6 percent of fresh turnip cube, 8 to 11 percent of fresh corn particle, 2 to 6 percent of bone meal, 1 to 3 percent of various vitamins, 0.5 to 1.5 percent of salt, 1 to 3 percent of pine needle meal, 0.5 to 1.5 percent of rhizoma anemarrhenae meal, 1 to 3 percent of selfheal meal, 1 to 3 percent of folium isatidis meal, 1 to 3 percent of cordate houttuynia meal, 0.5 to 1.5 percent of radix scrophulariae meal, 1 to 3 percent of ricepaper pith meal and 0.5 to 1.5 percent of quisqualis indica meal, wherein the percentage is percentage by weight.

The invention discloses a breeding method for increasing the survival rate of yellow catfish fry. The method includes the steps of pond selecting, bait breeding, water grass planting, fry putting, bait putting, water quality managing and daily managing. The breeding method is scientific and reasonable; by adopting methods of applying decomposed manure, increasing the oxygen content of a water body in a pond, replacing pond water in time, cleaning a food table, applying sterilize medicine and the like, the water quality is ensured and adjusted, the frequently-seen diseases of yellow catfish are effectively prevented, the immunity of yellow catfish weak in constitution at a fry stage is enhanced, the transition from endogenous nutritive yolk to exogenous nutrients can be well completed for fry, and the fry is balanced in nutrient, high in survival rate and rapid in growth speed and has good breeding and popularizing value.

Disclosed is a method with maggot cultivation and catfish aquaculture combined. The method comprises the following steps that 1 catfish fries are poured into a pond; 2 fish feed is used for feeding the catfish fries for a month; 3 certain fresh forage or treetop leaves are collected, compacted and sub-packaged into mesh bags; 4 the mesh bags containing the forage or the treetop leaves are made to float on the water surface of the pond to undergo fermentation and decaying; 5 a piece of animal giblet or a piece of meat is placed on the upper portion of each mesh bag so as to induce flies and generate fly maggots; 6 starchy and vitaminic fish feed is placed into the pond regularly and water inside the pond is changed regularly. According to the method with maggot cultivation and catfish aquaculture combined, the forage which is easy to obtain and or the tree top leaves which are easy to obtain are used as raw materials for cultivating the maggots on the water surface of the pond, the maggots are used as baits of catfishes, therefore, the catfishes grow fast and are heavy and tender in meat, and a large amount of feed cost is saved.

A rapid and sensitive PCR-based assay is provided to facilitate early detection of Edwardsiella ictaluri in channel catfish. This bacteria is the causative agent in the disease, Enteric septicemia of catfish (ESC). Also provided is a method of selecting breeding stock for use in selective breeding programs to improve disease resistance in channel catfish. Also provided is a method of determining the efficacy of vaccines produced against ESC.

The invention belongs to the technical field of aquaculture, and relates to a method for mainly culturing yellow catfishes and carrying out polyculture on other feeding fishes in a pond. The method is characterized in that a new netting method is designed, various feeding fishes can be cultured in the yellow-head catfish main culturing pond in a polyculture mode according to local conditions, and the unit culturing efficiency of the yellow-head catfish main culturing pond can be improved greatly. The method mainly includes the steps that a purse net is erected in front of a main fish, namely the yellow-head catfish, feeding machine according to the feeding area covered by the feeding machine; preferentially, 80% bait fed by the feeding machine can fall in a region surrounded by the purse net under the breezeless condition, wherein the purse set is made of polyethylene, and is 60m in length, 4m in height and 4cm in mesh, dense-net cylindrical polyethylene net pieces are sewn at the bottom of the purse net, the diameter of each dense net piece is 6cm, cobblestone are arranged in the dense net pieces as sinkers, the purse net is fixed into a closed circle through bamboo poles, the foot line reaches bottom mud, and the head line is exposed of the water surface by 80-100cm. The invention further provides a coordinated culturing mode and a specific method.

The invention discloses a method for eliminating a panfasidae catfish oil fishy smell. The method comprises the steps of hydrogen treatment and following treatment, wherein the hydrogen treatment includes the steps that refined panfasidae catfish oil is contained in a hydrogenation reaction kettle, a certain quantity of a hydrogenation catalyst is added, a reaction is generated at a certain reaction temperature, under certain reaction pressure and at a certain stirring rate, and therefore mild hydrogenated fish oil is obtained; the following treatment includes the steps that the catalyst, the color and the fishy smell of the obtained mild hydrogenated fish oil are eliminated, so that a fish oil product totally without the fishy smell is obtained. The method for eliminating the panfasidae catfish oil fishy smell is suitable for industrialized continuous production and capable of saving solvent.

The invention discloses a production method of fermented fish bone meat paste, comprising the following steps: preparing fish bone, fish head of sturgeon, channel catfish, tilapia mossambica and the like; pretreating, particularly washing and cutting into blocks; sterilizing; draining; soaking with mixture of salt and vinegar; draining; milling into slurry; adding salt; fermenting in a jar; carrying out solid-liquid separation; steaming the solids with high-temperature vinegar; mixing and homogenizing; flavoring; sterilizing; and finally obtain the finished product. According to the production method, the step of soaking with mixture of salt and vinegar is used for removing odorous substances, so the method is scientific, easy to operate and good in effect; the raw materials are soaked with the mixture of salt and vinegar, saline water and acetic acid work together to improve the solubility of the odorous substances in water so that the odorous substances are dissolved into water, thereby reaching the purpose of removing odorous substances from the raw materials; enzymes of fish are used for natural fermentation, thereby ensuring the flavor of fish meet paste; through solid-liquidseparation after fermentation, the obtained solids are steamed with high-temperature vinegar, so the grain size of the fish meat paste is reduced further, the uniform and consistent taste of the fishmeat paste is ensured; and after being steamed with vinegar, the solids are mixed with fermentation liquor, thereby ensuring good taste and flavor of the fish meat paste.

The invention discloses an artificial insemination method for a yellow-head catfish in a hypotonic solution, and belongs to aquaculture technologies. The artificial insemination technology is finished by innovating the way of acquiring the sperms and the eggs of the yellow-head catfish, designing a sperm storage solution and pre-activating the sperms in the hypotonic solution. The artificial insemination method adopts the following technical scheme: the artificial insemination method comprises the steps as follows: (1) filtering spermaries taken out after the male fish is bled in a bolting silk in an extruding way to obtain spermatic fluid, and refrigerating in the storage solution for storage to improve the sperm acquisition quality, wherein the spermatic fluid of each male fish can be provided for artificial insemination of 7.5 kg of the eggs; (2) extruding the eggs by two fingers to reduce the visceral injury of the female fish and increase the survival rate after delivery; and (3) taking the hypotonic solution with the concentration of 0.2-0.4% as an insemination medium instead of water, pre-activating the sperms in the hypotonic solution and inseminating with the eggs to enhance the sperm activity and the controllability of artificial insemination are enhanced, increase the insemination rate of artificial insemination and improve the stability of artificial insemination. The artificial insemination method is stable and reliable, and is suitable for large-scale production and fishes with homogeneous egg types.

The invention discloses a compound Chinese herbal medicine for promoting the growth of yellow catfish. The compound Chinese herbal medicine comprises seven Chinese herbals: namely sophora flavescens, dried orange peel, radix astragali, rheum officinale, haw, Chinese angelica, and licorice with a ratio of 23:15:21:13:12:16:9. The preparation method of the compound Chinese herbal medicine comprises the following steps: (1) decocting for the first time; (2) decocting for the second time; (3) carrying out double-effect condensation; (4) carrying out spray drying. The technology method is simple, seven Chinese herbals are reasonably compounded, and then the compounded seven Chinese herbals are subjected to processes of high-pressure decoction, double-effect vacuum condensation, and spray drying so as to obtain the compound Chinese herbal medicine, so the drug effect and palatability of the Chinese herbal medicine are both greatly improved. The prepared compound Chinese herbal medicine has the advantages of nature, high efficiency, little toxic and side effect, non-prominent drug resistant property, rich raw material resources, and multiple properties, and is capable of being used as a drug or a nutrient agent.

The multiple hook catfish dip worm is constructed of a worm body that is particularly adapted to prolong adhesion of stinky cheese bait that is otherwise washed off of during use in water as a fishing lure. The worm body is of tubular construction, and features a plurality of ribs along a length, and is made of a highly flexible material. The worm body includes a hook member that is concentrically aligned with and spans along the length of the worm body. Treble hooks extend radially from the hook member, and exit through the worm body. The worm body includes the treble hooks at various locations along the length of the worm body, and increases the likelihood of hooking a fish biting the worm body. The hook member includes a looped end, which enables a line to connect thereto.

The present invention provides a yellowhead catfish feed which comprises the following components in parts by weight: 70 to 78 parts of agricultural waste poultry and livestock protein substances, 15 to 21 parts of soybean meal, 1 to 3 parts of sesame meal, 3 to 5 parts of gluten flour and 1.5 to 2.5 parts of a YCF additive. The yellowhead catfish feed is produced from pure natural animal and vegetal high-quality raw materials, and has the advantages of easily available materials, wide material sources, appropriate matched nutrition, good viscoelasticity, strong flocculability in water, long floating time, proper fineness, and ingestion easiness for yellowhead catfish. The processing method is simple and convenient, and is low in cost. The yellowhead catfish feed provided by the invention has a strong attractant effect and good palatability, can be rapidly absorbed and easily digested, and contains various amino acids, vitamins and trace elements for the growth and development of yellowhead catfish. In particular, the added YCF additive endues the feed with ideal floating, sinking and drifting states which facilitate the ingestion of yellowhead catfish, and provides good growth promoting and disease preventing effects, so that the immune functions of yellowhead fish are improved, the yield and quality of yellowhead catfish are significantly improved, and the economic benefits are significant.

The invention discloses a preparation method of artificial feed for longsnout catfish. The preparation method comprises steps as follows: premix is prepared; fish meal, sargassum thunbergii, snails, krill meal, rapeseed meal, flour, corn flour, peanut shell meal and puffed sweet potato flour are mixed uniformly, crushed until the mixture can pass through a 50-mesh or 60-mesh sieve, and stirred at the speed of 50-150 r/min for 1-2 h; fish oil, olive oil, glycine betaine, an EM (effective microorganism) bacterium liquid, soybean phospholipid and premix are added and continuously stirred at the speed of 120-160 r/min for 30-70 min, water is added until the water content of the system is 15wt%-45wt%, the mixture is stirred uniformly, steam is introduced for curing, granulating and cooling are performed, and the artificial feed for the longsnout catfish is prepared. The product has balanced nutrition and can promote quick growth of the longsnout catfish, the fatality rate of the longsnout catfish is low, and the method is simple and convenient to operate practically.

The invention discloses a cultivation method of polyculture of California weever and yellow-head catfish, which belongs to the technical field of aquaculture, and relates to biological and ecological habits of California weever, yellow-head catfish, silver carp and spotted silver carp, in particular to a 5-30-mu and 1.8-2.8-meter deep pond chosen for the polyculture of the California weevers and the yellow-head catfish and technologies and methods such as a strict preliminary processing, reasonable fish seeds stocking time and density, the mixed feeding of iced fresh fish and extruded feeds, the water quality management, the disease control, the fishing and harvest and the like. The California weevers do not have strong feeding desire for fish blocks and fish mince sink to the bottom of the pond so that the rot of residues of the iced fresh fish is caused with water quality rotten and bacteria breeding. In the California weevers cultivation pond, the yellow-head catfish are polycultured for feeding food residues, the silver carps are polycultured for controlling the generation of blue algae, and the spotted silver carps are polycultured for controlling the generation of plankton, thereby the balance and stability of cultivation eco-system is maintained in the pond, substance and energy flow smoothly in the system, the water quality environment is good, the constitution of cultivated aquatic animals is healthy, the possibility of disease occurring is reduced, the feed coefficient is lowered, and the culture benefit is increased. The method is feasible in technology, which is pioneering in the domestic California weever cultivation field, and is convenient to be applied for cultivation enterprises and aquatic farmers, thereby owning broad prospects.