1718 results about "Larva" patented technology

The invention discloses a high-activity antibacterial peptide-containing matrix for garden seedling cultivation, as well as a preparation method and application thereof. The high-activity antibacterial peptide-containing matrix for garden seedling cultivation is prepared from the following components: Chinese medicament residues, organic additives, inorganic additives, microbial blends, housefly larva excrement, functional microbes and a water retention agent, wherein the functional microbes have the effects of activating matrix nutrition, exogenously fixing nitrogen, antagonizing pathogenic microorganism, reinforcing absorbing capability of seedling roots to nutrition and promoting seedling growth. Furthermore, the matrix for garden seedling cultivation has comprehensive nutrient elements, stable performance, strong buffer capability, and good water and fertilizer retaining performance; and the preparation method has simple production process, short production period, wide sources and low cost of raw materials, no environmental pollution and convenience in large-scale commercial production. The matrix for garden seedling cultivation can be used for raising and cultivating garden green seedlings, and can also be used for repairing and improving the ecological environment.

The present invention is artificial breeding method and incubator for Shatang carp. The artificial breeding method includes the steps of parent fish breeding, spawning and fertilization, hatching and carp fry culturing. After intensified parent fish breeding, temperature control, flow water stimulation and other method are taken to promote the synchronous spawning and fertilization of parent fishes, the fertilized eggs on tiles are sterilized and hatched in a special hatching device, and the hatched carp fries are cultured in a special cement pond. The artificial hatching device is one rectangular hatching tank with shield, ventilating water circulating pump, water level and water flow controlling mechanism. The technology of the present invention is suitable for large scale production of Shatang carp fry.

The adult river crab feed consists of fish meal, bean residue, corn powder, mineral salts, ink fish powder, betaine, fish oil, vitamines, eclosion hormone, adhesive and other material. Its production process includes weighing material, mixing, introducing steam, pellitizing, dewatering and cooling. It is delicious and water soaking resistant and suitable for feeding large-eye larva of river crab. Making river crab eat the feed can promote its growth and result in low feed coefficient.

The invention belongs to the field of feeds, specifically to a feed for grass carp. The feed for grass carp comprises the following components by weight: 10 to 40 parts of crude protein, 40 to 80 parts of corn gluten meal, 20 to 50 parts of peanut meal, 10 to 30 parts of vinasse, 1 to 4 parts of dicalcium phosphate, 5 to 15 parts of yeast powder, 1 to 5 parts of salt, 5 to 20 parts of a premix for grass carp, 2 to 8 parts of fish bone meal, 2 to 7 parts of an ecological preparation, 10 to 20 parts of cottonseed meal, 2 to 8 parts of housefly larva powder, 10 to 20 parts of wheat shorts, 2 to 7 parts of mineral elements, 2 to 9 parts of plant oil, 1 to 5 parts of a compound enzyme preparation, 1 to 4 parts of ferrous sulphate, 1 to 15 parts of tenebrio molitor, 5 to 15 parts of a Chinese herbal medicine additive and 2 to 8 parts of amino acid. Through feeding of grass carp with the grass carp feed containing plant extracts, feeds are saved, the quantity of reagents is reduced, feeding cost is lowered down, and grass carp breeding benefits are improved; the Chinese herbal medicine additive has a medicinal function, can improve immunity of grass carp, reduce generation of diseases in the process of breeding and decrease usage of medicaments and enables safe and reassuring grass carp to be produced.

The invention relates to a kitchen waste biological treatment system, and discloses an insect treatment system of kitchen waste. The insect treatment system of kitchen waste comprises a material receiving tank, a pretreatment device, a separation device, a stewing and squeezing device, a waste oil treatment device, a preservative device, an insect cleaning device and an insect drying device for processing collected insect larva further. The insect treatment system of kitchen waste, which is provided by the invention, is reasonable in structure, and the separated waste liquid part acts as a cleaning liquid for cleaning waste, so that not only can the waste liquid after fat separation be effectively applied to the operation process of the system, but also the waste liquid can be recycled, and the use efficiency of waste is improved greatly; meanwhile, multiple air blowing-air inducing mechanisms are adopted for cleaning the insect larva, so that an insect feed can be completely separated away from the insect larva, and thus the quality of the prepared insect larva can be improved, and moreover, insect excrement can be extracted individually to act as a biological fertilizer, and the actual use effect of the treatment system is improved.

The invention discloses a penaeus monodon larva stage microparticle feed comprising protein source raw materials, fat source raw materials, sugar source raw materials, antioxidants, phagostimulant, multi vitamins and complex mineral salts. The feed can improve survival rate of penaeus monodon at a larva stage, enables the larvae to be produced fast and stable under water, and rapid in ingestion, has the advantages of being convenient to use and low in the pollution of the environment and the like, and solves the problems that current organism baits are unstable in quality and quantity, prawn slices on the market are unbalanced in nutrition, water contamination is too serious to control at a larva breeding stage and the like; accordingly, healthy development of penaeus monodon larva production and breeding is promoted, and the feed is of great significance.

The invention discloses a leech industrial soilless three-dimensional high-efficiency culture method. The leech industrial soilless three-dimensional high-efficiency culture method comprises the following steps of: a, building an industrial culture pond; b, cocoon production; c, incubation; d, larva culture; e, larva stocking; f, culture management; and g, finished product leech harvest, wherein multi-edge multi-angle three-dimensional environments are created in the culture pond; artificial soilless three-dimensional caves are provided; and a first-level platform, a second-level platform, a third-level platform and a deepwater region are provided. By the leech industrial soilless three-dimensional high-efficiency culture method, cost can be saved; the leech is wide-body golden-thread leech and the survival rate of the larvae reaches over 95 percent; the growth time is about 90 days from the larvae to the finished products and the growth time in the natural world is 180 days; density is increased due to three-dimensional culture; and the finished products can be cleaned and harvested conveniently.

The invention discloses a cultivation method of a novel strain of crassostrea gigas with a pure purple left shells. The cultivation method is characterized in that operation comprises the steps of: (1) seed production: selecting male and female individuals with pure purple left shells from a cultured group as cultivating parent shellfishes; performing one-to-one insemination and copulation, respectively marking breeding systems, cultivating larva by adopting strict isolation measures, and placing in a same sea area for intermediate culture and cultivation; breeding generation by generation to purify so as to form a family; and (2) purification of the novel strain: selecting inseparate families with character proportion of above 90% as parent shellfishes, performing seedling propagation so as to cultivate the novel strain of crassostrea gigas with the pure purple left shells and stable character. With the adoption of the cultivation method provided by the invention, the cultivating process of the novel strain is accelerated and transgenic and pharmaceutical treatment do not need to be carried out, the novel strain is cultivated, the additional value of product is also improved through color character, and the market sale price and income of cultivation enterprises and cultivators are increased, and market prospect is wide.

The invention discloses a device for separating hermetiaillucenslarvas. The device comprises a separation frame, wherein the bottom surface of the separation frame is provided with a conveying belt which can seal the bottom surface of the separation frame; the side wall of the separation frame along the output direction of the conveying belt is provided with a door which can be opened and closed; the lower part of the peripheral wall of the separation frame is provided with a heating plate; the heating plate is electrically connected with a temperature control device; and the upper part of the separation frame is also provided with a plurality of larva outlet holes. According to the device, the hermetiaillucenslarvas and residual wastes can be effectively separated, so that conditions are created for industrial breeding of the hermetiaillucens.

The invention provides a fully-artificial breeding method of parent crabs of Portunus trituberculatus, comprising the following steps of: selecting large female and male parents with good characters; artificially controlling the female and male parents to be mated; numbering the mated female crabs and then putting into an overwintering pond, wherein baits of an overwintering period are living clam worms; utilizing sand-filtered underground seawater and controlling the water temperature in a range of 8-10 DEG C to accelerate sexual glands to grow to be mature and ovulate; putting one parent crab with ova into a cage and then putting the cage into a breeding pond to ovulate larvae and breed in the May of the next year; culturing the larvae in one pond to the second phase of young crabs; then putting the young crabs into a cultivation pond to be cultivated, so as to realize the fully-artificial cultivation of the Portunus trituberculatus. According to the invention, the fights and injuries of male crabs are reduced and the parent breeding success rate is improved; the generation and the transmission of diseases are reduced, and the overwintering survival rate is improved; and meanwhile, the fully-artificial breeding method is also applicable to temporary cultivation of commodity crabs so that the marketing period of the commodity crabs is prolonged and the economic additional value of the cultivated crabs is improved; and the larvae are cultivated in one pond so that the fully-artificial breeding method is applicable to propagating of the population of the Portunus trituberculatus breeding population.

The invention discloses a method for breeding larva of lepidoptera insects indoor. The breeding box using in the method has no bottom, and the lower part of the inner wall of the breeding box is fixedly connected with at least two support blocks. A leaking frame is arranged on the support blocks, at least one fixing device of a cutting transplanting pipe is arranged on the leaking frame, and at least one cutting transplanting pipe is arranged in the fixing device of the cutting transplanting pipe. The lateral wall of the breeding box or the box cover is provided with at least one ventilating window. The leaking frame comprises a cross rod and a grid. The branches of the host plant are inserted in the cutting transplanting pipe, the leaves of the plant branches cannot touch the inner wall of the breeding box, and clean water or plant culture medium is put in the cutting transplanting pipe. The invention solves the technical problems that the larva difficultly eats food caused by disorderly climbing, and the larva groups are easy to crossly infect by pathogen caused by that excrement of the larva pollutes the leaves. The invention can adjust the temperature and the humidity in the breeding box, has long fresh keeping period, can conveniently change the branches and clean the box body, can easily disinfect, and has a simple and smart structure, low cost and little labour input, so it is suitable for breeding the larva of large insects indoor.

The invention relates to the field of Rapana venosa artificial breeding, in particular to a Rapana venosa ecological breeding method. The method comprises: transferring egg bags into a plastic basket or net cage (10-20mesh) for suspended hatch in a nursery pond and charging air continuously, wherein the density of the egg bags is 5,000 to 8,000/m<3>; breeding larvae at a density of 1/ml with bait made of chlamydomonas (diatom and tetraselmis are preferred) in an amount of 1.0 to 12.0*10<4>/ml every day at a water temperature of 22 to 26 DEG C; continuously charging air, changing 1/2 of water every day; and when the larvae grow three whorls to a size of 700 to 800 micrometers, placing the larvae in to 60-mesh net bags, cages or tanks together with double-shell spats (animal baits for transformed Rapana venosa) for sea breeding.

The invention discloses an artificial breeding method for siganus oramin. Siganus canaliculatus and Siganus fuscesens are common fish stocks of Siganus, the physiological characters, reproductive habits and the breeding methods of the Siganus canaliculatus and Sigauns fuscesens are more similar, the problems that the source and domestication are difficult, newly hatched individuals are small in body size, the death rate caused by strong irritability of larva is high, a systematic artificial breeding technique is in shortage, the breeding offspring seeds are mainly from natural seedlings captured from ocean, and the like exist in the artificial breeding process. The artificial breeding method adopts the technical measures of parent fish culturing, cultivation, artificial spawning and incubation, larva cultivation pool preparation, cultivation water quality conditioning, staged bait feeding and juvenile fish transportation, so that the industrialization production of parent fish supply and seedling culture is realized, and the technical problems of artificial spawning and incubation of parent fish, selection and enrichment of larvae bait, water quality regulation and control, larva transportation and the like in the artificial breeding process of Siganus canaliculatus and Siganus fuscesens are systemically solved. The spawning rate of the cultivated parent fish can reach more than 65 percent, the average spawning fertility rate can reach more than 85 percent, and the survival rate of artificial breeding is 10.7 percent-27 percent.

The invention relates to the technical field of screening of animal species, in particular to a screening method for nicotine-resistant housefly species. The screening method comprises the steps that specific materials of a non-applicable fresh tobacco leaf formula are utilized to trap wild houseflies to come around to lay eggs, larvas of the wild houseflies are cultivated to a mature state, and the housefly species resistant to nicotine are screened according to growth and development indexes of the larvas. According to the screening method, the specific materials of the trapping formula are utilized, and therefore the housefly species effectively resistant to the nicotine can be screened out.

A method for culturing the larvae of triverrucous portunid in outdoor pond includes such steps as providing male parent portunid and female parent portunid, indoor culture at 12-18 deg.C by feeding living clam worm, oxytocia, incubation, and culturing larvae in an artificial ocean environment by feeding living bait and building hidden caves for preventing the mutual damage between larvae.

The invention provides an industrial shrimp larva breeding mode capable of improving production benefits and market benefits of larva breeding, which is characterized in that: (1) a breeding device consists of a constant temperature heating device, a hatching pond and larva breeding ponds; (2) multiple stages of high-low serially connected larva breeding ponds are communicated by transfer pipes; (3) water inlet pipe of the hatching pond reaches the bottom of the hatching pond from the center of the hatching pond, and the upper end of the water inlet pipe is connected with the constant temperature heating device; (4) after being hatched in the hatching pond, larvae enter a next stage of larva breeding pond through a communicating pipe with water flow till the larvae are well gown; (5) eachstage of larva breeding pond is provided with a water injection pipe; (6) circulating water of all stages gathers in a return pipe, is processed in a sterilizing pond and circulate to the constant heating device again. The high-density and systemically controlled-breeding condition industrial shrimp larva breeding mode has the advantages of water conservation, small floor area occupation, high breeding efficiency, light environmental pollution and the like and greatly improves the production benefits and market benefits of larva breeding.