43 results about "Water flea" patented technology

The invention relates to a tropical fish feed which is prepared by loach powder, fish visceral meal, water flea powder, duck intestine powder, pork powder, chicken powder, animal albumen powder, milk powder, sorghum albumen powder, eucommia powder, kuh-seng powder, angelica powder, malt meal, asparagus powder, safflower powder and edible bulking powder. The preparation method comprises the following steps: proportionally mixing all the powder together, stirring the mixture in a mixer for 200 minutes, taking out, pulverizing the mixture to 0 mesh in a pulverizer, taking out, putting into a drying machine, controlling the dryness of the dried material to be 80-90%, taking out, cooling, stirring in a mixer for 180 minutes, taking out, bulking in a bulking machine for 2-3 hours, controlling the temperature of the bulking machine to be 80-85 DEG C and controlling the dryness of the bulked material to be 80-90%, taking out, cooling and packaging according to the proportion.

The invention discloses a frog breeding method adopting high-density concentrated captive breeding and belongs to the technical field of aquaculture. The frog breeding method comprises steps as follows: a culture pond is built and divided into a spawning pond, a tadpole pond and an adult frog pond; the spawning pond, the tadpole pond and the adult frog pond are built according to actual conditions, cement is plastered on the pond walls, soil is still reserved at the bottoms of the ponds, water pouring holes and drainage channels are formed; tadpoles out of egg membranes are bred in the original hatching pond or a net cage, and 600-800 tadpoles are bred in water per square meter; blood worms, water flea and fly maggots are gradually adopted as staple food of the tadpoles after the tadpoles are bred for about 20-30 days; after froglets are transferred into the adult frog pond, sufficient baits are required to be supplied, and besides, animal feed is required to be added when the tadpoles are metamorphosed into the frogs. According to the frog breeding method, the survival rate of breeding is increased, the labor cost is reduced, the economic benefit is greatly increased, furthermore, varieties can be screened in a breeding process, similar quality of frogs of one batch is guaranteed, the defect of uneven quality in the prior art is overcome, the frog quality is further improved, and the frogs better meet the market requirement.

The invention discloses a cultivating method of marmoratus fish fries. The cultivating method includes using chlorella liquid to reduce noxious substance in water body under the light-control, temperature-control and water-control conditions, intensifying water flea, increasing nutrition of fries and advanced fries, reducing death rate during a transformation period from the fries to the advanced fries, utilizing shells to form a shielded place on the bottom of the water body and sargassum algae to form a shielded place from the bottom of the water body to water surface to hide the fries and the advanced fries, avoiding killing and devouring during period of the fries and the advanced fries, and increasing survival rate. The survival rate of the marmoratus fish fries can reach 29% or so, and cultivating cost of the marmoratus fish fries can be reduced by domesticating the marmoratus fish fries with compound feed to enable the marmoratus fish fries to adapt the compound feed.

The present invention relates to a feed for reducing morbidity of grass carps. The feed comprises the following raw materials in parts by weight: 3 parts of eggs, 5 parts of expanded peeled soybeans, 5 parts of expanded peeled soybean meal, 2 parts of broken yeasts, 15 parts of peanut meal, 15 parts of fish meal, 26 parts of rice brans, 2 parts of brans, 3 parts of locust tree leaf powder, 2 parts of corn protein peptides, 8 parts of water flea powder, 3 parts of fly maggot powder, 2 parts of garlic powder, 2 parts of laminaria japonica powder, 2 parts of lemon juice, 6 parts of honey, 4 parts of sesame seed oil, and 3 parts of traditional Chinese medicine additives. The feed is green and environmentally protective, rich in nutrition, and strong in palatability. By adding the traditional Chinese medicine additives, the feed further enhances the immunity of the grass carps and improves the disease-resistant and antibacterial abilities of the grass carps. After the grass carps eat the feed, the morbidity of the grass carps can be effectively reduces, the weight is significantly improved, the feeding is active, and the feed utilization rate is high.

The invention discloses a separation purification and large-scale culture method of acartia tonsa. The separation purification and large-scale culture method comprises the steps of 1, acquiring copepods; 1, carrying out directional screening on the copepods; and 3, performing enlarged cultivation. By virtue of the method, the breeding purity of the acartia tonsa is increased, and the culture device is simple in structure and is suitable for large-scale breeding.

The artificial yellow porgy fry nursing method relates to yellow porgy fry nursing technology, and solves the technological problems of yellow porgy development in different stages. The artificial yellow porgy fry nursing process includes sterilizing live yellow porgy; raising sterilized yellow porgy in pond covered with black net via feeding first with no-shell shrimp as bait, fresh small fish and shrimp, and fish meat; maintaining water in 15-16 deg c in winter and not higher than 28 deg c in summer; feeding with razor clam, squid and squid gonad with added vitamin E and vitamin C after raising in pond for one year, and injecting LHRH-A3 and LHRH-A2+DOM to induce spawning; hatching fertilized egg at 16-26 deg c, and feeding fry of 3-day over age with rotifer and 21-day over fry with water flea, changing partial water, adding antiseptic and maintaining water temperature in 25 deg c to obtain fry in 45 days. The present invention is suitable for artificial rising of yellow porgy.

The invention discloses a method for breeding artificial aeguidens rivulatus fries by nano feeds. The method comprises the following steps: selecting a breeding facility, namely a square pond with the characteristics of flat bottom, less sludge, convenience in irrigation and drainage and average water depth of 0.8m; disinfecting the pond by 10mg/L of trichloroisocyanuric acid in 10 days before aeguidens rivulatus is put into the pond; keeping clear water and the pH value to be 7.8, wherein aeguidens rivulatus fries are hatched out by fertilized ova after 2-3 days and can freely move for finding foods in another 5-6 days; feeding the aeguidens rivulatus fries with fairy shrimps or small water fleas for four times each day in the beginning; after half a month, feeding the aeguidens rivulatus fries with blood worms (cladocerans); after a month, feeding the aeguidens rivulatus fries with artificial compound feeds, optimally selecting and using feeds with high protein content such as fresh fish meat, shrimp meat and snail meat, also selecting and using compound feeds, and generally feeding the aeguidens rivulatus fries with animal feeds for improving the nutrition and promoting the gonad development of parent fishes in a breeding season.

The invention relates to a machinery. An aquatic organism salvaging and separating machine comprises a machine frame body, a power and control system fixed on the machine frame body and a travelling system controlled by the power and control system as well as a water sucking system and a vibrating and separating system arranged at a water outlet of the water sucking system. In the invention, a power system of a small tractor is taken as an active force to decelerate after the original reduction gear box and a control system of the aquatic organism salvaging and separating machine, and a motion process that water flea, mud and water are sucked during travelling while cleaning is carried out during filtering and the water flea is loaded is adopted. The whole working process is smooth, and the operating control process is simple, convenient and feasible. The total weight of the whole machine is light, the machine is convenient for travelling in the field, and fuel is saved. By applying the machine provided by the invention, the water flea can be salvaged without manual work, labour intensity of workers who salvage the water flea is alleviated, and working efficiency is improved.

The invention discloses a breeding method of benthosema pterotum. The breeding method includes the steps of 1), selection of a breeding pool, namely selecting the position with a pollution-free underground water source, sufficient in water and convenient for irrigation and drainage to establish the breeding pool and removing weeds; 2), sterilization of the breeding pool, namely sterilizing the breeding pool with a lime drying method and then allowing standing for 7-10 days before water injection; 3), fry dropping, namely selecting strong and vigorous fry with no diseases and injuries and dropping the fry to the breeding pool in early April; 4), feed dropping, namely feeding animal feed of water flea, fairy shrimps and the like in early feeding, and feeding vegetable feed of corn flour, bean dregs and the like in later period, wherein respectively feeding one time at noon and one time at 6PM. in summer and fall, and feeding once at 12 noon or 5PM. in winter and spring; 5), water changing, namely changing water once every 20 days in winter and fall while once every 50 days in winter and spring; 6), cleaning and disinfection, namely preparing 0.1%. of a potassium permanganate solutionand spraying the same once very 15 days. The breeding method is favorable for artificial breeding of the benthosema pterotum.

The invention discloses a frog breeding method with high economic benefits, and belongs to the technical field of aquaculture. The method includes the steps that a breeding pool is constructed, wherein the breeding pool is divided into an egg laying pool, a tadpole pool and an adult frog pool; the egg laying pool, the tadpole pool and the adult frog pool are constructed according to the actual conditions, the walls of the pools are coated with cement, mud still remains at the bottoms of the pools, and water injecting holes and drainage channels are formed; hatched tadpoles are bred in an original hatching pool or net boxes, wherein there are 600-800 tadpoles put in a suitable place for breeding per square meter of the water surface; about 20-30 days later, blood worms, water fleas and flymaggots are adopted as main feed gradually, and besides supplying sufficient baits after young frogs turn into adult frogs, animal feed needs to be added for feeding as the tadpoles turn into the adult frogs. The frog breeding method has the advantages of being conducive to increasing the survival rate of breeding, reducing the manpower cost and greatly augmenting the economic benefits, and duringbreeding, varieties can be screened, so that more convenience is provided for ensuring that the frogs bred at the same period are similar in quality, the defect of uneven quality in the prior art isavoided, the quality of the frogs is also improved at the same time, and the frogs can better meet the market demands.

The invention discloses a feed formula for 0-3-week laying ducks. According to the feed formula of the invention, the ingredients are as follows by weight percent: 54.3% of corns, 5% of duckweed powder, 20.15% of water flea, 3% of wheat middling, 0.68% of calcium hydrogen phosphate, 15% of wheat bran, 1.52% of stone powder and 0.35% of salt. Calcium hydrogen phosphate added in the ingredients can be used for effectively promoting the absorption of duckling to nutrition and water flea added in the ingredients is a cheap animal protein feed nutrition of which is far better than that of fishmeal. Being as a protein feed, the water flea has the main defect that the contents of methionine and cysteine are low, so that methionine and cysteine need to be supplied when a single-stomach animal is fed. Thus, product of the formula is characterized by balanced nutrition. By using the product to feed 0-3-week laying ducks, cost and loss of the feed can be reduced while nutrition content is increased for the ducklings, so that the digestion is improved, absorption and survival rate of the ducklings can be improved.

The invention discloses butterfly tail golden fish head swelling feed and a preparation method thereof. The butterfly tail golden fish head swelling feed comprises the following components in percentage by weight: 0.1-0.3% of trace elements, 0.1-0.15% of vitamins, 2-3% of monocalcium phosphate, 0.1-0.2% of astaxanthin, 30-40% of water flea, 3-5% of bloodworm powder, 15-25% of imported fish meal, 2-3% of kelp powder, 3-6% of spirulina powder, 4-6% of fish oil, 20-30% of wheat flour and 5-10% of miscellaneous meal. Due to addition of the astaxanthin in the formula of the feed disclosed by the invention, butterfly tail golden fish can be relatively vivid in body color; due to addition of the spirulina powder and kelp powder, the body color brightness of the butterfly tail golden fish can be improved, and the color can be relatively vivid; the raw materials of the formula are reasonable in nutrition matching; due to adoption of a puffing process, the absorption utilization rate of the feed can be effectively increased, the butterfly tail golden fish can grow rapidly, the feed is high in contents of protein and fat, and rapid head swelling of the butterfly tail golden fish can be effectively promoted.

The present invention relates to a growth promoting and disease preventing compound feed for aristichthys nobilis. The feed comprises the following raw materials in parts by mass: 12-15 parts of corn, 16-20 parts of flour, 16-20 parts of shrimp powder, 16-20 parts of rapeseed meal, 8-11 parts of fishmeal, 1-3 parts of wall broken yeast powder, 1-2 parts of radix astragali powder, 1-3 parts of spirulina platensis powder, 0.5-1 part of edible salt, 3-5 parts of carrot powder, 2-5 parts of water flea powder, 1-3 parts of fish oil, 2-5 parts of liquorice powder, 0.5-1 part of vitamin C, 2-4 parts of haw kernel powder, and an appropriate amount of water. According to the growth habits and physiological characteristics of the aristichthys nobilis, the feed targetedly provides the nutrients suitable for the growth of the aristichthys nobilis, promotes development, increases appetite, achieves rapid growth of the aristichthys nobilis, improves disease resistance of the aristichthys nobilis, prevents diseases of the aristichthys nobilis, and reduces the incidence of the diseases.

The present invention relates to equipment for measuring water quality using a fish or a water flea, an more particularly, to equipment for measuring water quality in which small organisms such as killifish (or medaka) or water flea are put into test chamber having a plurality of divided sections and behavior of the fishes or the water fleas accommodated in the test chamber is observed while continuously flowing water of a river or a water zone to be examined through the test chamber, thereby finding out and measuring existence of toxic element or harmful substance included in the water to be examined.

The invention discloses a 4-8-week laying duck feed formula. According the formula, ingredients are as follows by weight percent: 61.66% of corns, 5% of duckweed powder, 14.58% of water flea, 16.47% of wheat bran, 1.94% of stone powder and 0.35% of salt. Water flea added in the ingredients is a cheap animal protein feed with the nutrition far better than that of fishmeal. With regard to protein quality, various amino acids (especially essential amino acids for animals, such as lysine, methionine, cystine and tryptophan) contained in water flea are complete in types and abundant in content. Thus, product of the formula has balanced nutrition. By using the product to feed 4-8-week laying ducks, cost and loss of the feed can be reduced, nutrition content is increased for the 4-8-week laying ducks so as to prompt rapid growth of the 4-8-week laying ducks in a healthy and nutritious way, the digestion and absorption system of the laying duck is improved, the duck bone frame is enhanced, and the survival rate is increased.

The invention discloses a high-yield breeding method of freshwater fishes. The high-yield breeding method comprises the following steps of S1, selecting fingerlings; S2, sterilizing and disinfecting a fishpond, installing a water pump and a heater, preparing improved silt soil, laying the improved silt soil onto the bottom of the sterilized and disinfected fishpond, applying a compound fertilizer to the surface of the improved silt soil, covering the soil with film, adding aquatic plants into the fishpond, then adding water, controlling the water temperature in the fishpond, and completing improvement of the fishpond; S3, putting the fingerlings into the fishpond, putting fish feed, reducing the putting frequency of the fish feed to 4 times every day when the weight of the fingerings is increased to double the weight of the fingerlings at the moment of putting, and maintaining the frequency until the freshwater fishes are harvested; S4, periodically starting up the water pump, conducting inspection, throwing a water flea killing agent, fishing excessive aquatic plants and sick fishes, injecting water, harvesting the fishes when the fingerlings in the fishpond are mature, and then completing high-yield breeding of the freshwater fishes. According to the breeding method, the yield of the bred freshwater fishes is high, the quality is high, the meat is smooth and tender, and the number of the sick fishes is small.

The invention discloses a feed capable of improving the meat quality of hairy crabs. The feed is prepared from the following raw materials in parts by weight: 10 to 20 parts of chicken liver powder, 20 to 40 parts of pig liver powder, 5 to 10 parts of water flea powder, 10 to 20 parts of soybean meal, 5 to 15 parts of field-snail-meat, 1 to 10 parts of silkworm chrysalis meal, 0.1 to 0.5 part of calcium hydrogen phosphate, 1 to 5 parts of edible salt, 1 to 10 parts of plant oil, 0.1 to 1.5 parts of compound trace elements, 2 to 8 parts of bone meal, 0.1 to 1.5 parts of compound vitamins and 10 to 20 parts of a Chinese herbal medicine feed additive of the feed capable of improving the meat quality of the hairy crabs. The feed disclosed by the invention contains a large quantity of proteins and various vitamins and is rich in nutrition, and the proportion of the nutritional components is proper. Furthermore, the feed can improve the meat quality of the hairy crabs, increase the content of coarse proteins and coarse fat in the hairy crabs and enhance the meat color.

The invention belongs to the field of sampling devices and drinking water safety, and relates to a cyclops polluted water sampling device and a water quality characteristic identification method. And the sampling device part is used for filtering through nets or membranes with different pore diameters, so that the effect of separating solid insoluble substances from a solution is achieved. Meanwhile, zooplankton or other substances needing to be studied and the like with corresponding sizes can be collected by replacing nets or films with different pore diameters. In the identification method part, a sampled water body is subjected to solid-liquid collaborative analysis, solid insoluble substances are analyzed by using an infrared microscope, and specific infrared characteristic regions of 3010 cm <-1 >-2700 cm <-1 > and 1800 cm <-1 >-1480 cm <-1 > belonging to the cyclops are provided. A fluorescence spectrum analysis solution is used, and the specific outbreak condition (growing period-mature period-decline period) of cyclops in the water body can be finally obtained by comparing riboflavin indexes. The method has the characteristics of simplicity and convenience in operation, high accuracy, wide application range and the like.

The invention relates to a growth-promoting and disease-preventing compound feed for crucian carps The growth-promoting and disease-preventing compound feed for the crucian carps comprises the following raw materials in parts by mass: 12-15 parts of wheat starch, 26-30 parts of flour, 15-20 parts of shrimp meal, 10-12 parts of mung bean powder, 7-10 parts of meat and bone meal, 1-3 parts of wall-broken yeast powder, 1-2 parts of radix astragali powder,1-3 parts of spirulina powder, 1-2 parts of edible salt, 3-5 parts of carrot powder, 2-5 parts of water flea meal, 1-3 parts of fish oil, 2-5 parts of liquorice root powder, 1-2 parts of vitamin C, and an appropriate amount of water. The compound feed disclosed by the invention provides nutrients suitable for growth demands of the crucian carps in a targeted way according to the growth habits and the physiological characteristics of the crucian carps, so that the compound feed is capable of promoting development of the crucian carps. The compound feed is capable of increasing appetite of the crucian carps so as to realize rapid growth of the crucian carps. Moreover, the compound feed is also capable of improving disease resistance of the crucian carps so as to prevent fish diseases and reduce disease incidence rates.

The invention relates to the technical field of aquaculture, in particular to a feed capable of improving immunity of pseudorasbora parva in a rearing stage. The feed comprises a base material and anadditive, the base material comprises fishbone dust, water flea powder, soybean meal, milk powder, pine needle powder, dandelion powder, radix puerariae and radix bupleuri, fishbone dust and water flea powder, the soybean meal provides daily required capacity for the pseudorasbora parva, the milk powder, the pine needle powder, the dandelion powder, radix puerariae and radix bupleuri can effectively improve the disease resistance of fishes, the additive comprises monocalcium phosphate, zinc lactate, compound enzymes, methionine and lysine, and the immunity of the pseudorasbora parva is enhanced while vitamins and minerals of the pseudorasbora parva are supplemented.

The invention provides a water flea collecting device for indoor culture based on microalga. The water flea collecting device comprises a water flea collecting device, a water inlet and a water inlet valve which are arranged at a water inlet port of the water flea collecting device as well as a water flea trapping lamp and a water flea collecting port which are arranged on the side wall of the water flea collecting device, wherein a water flea collecting valve is arranged on a pipeline of the water flea collecting port, a filtering device used for separating living water flea from stones, microalgae residues, water flea shells, excrement and suspended residue particles is arranged in the water flea collecting device, a water outlet is formed in the bottom of the water flea collecting device, and a water outlet valve is installed on a pipeline of the water outlet; and the water flea collecting device is supported and fixed by supporting footstands. The device does not damage the water flea, is high in safety, can quickly separate the water flea from inactive residues and remove the residues, and is high in removal rate and good in effect.