64 results about "Penaeus plebejus" patented technology

The invention discloses a staged desalinization culturing method for penaeus vannamei boone. The method comprises the steps such as selection of penaeus vannamei boone offspring seeds, a staged offspring seed desalting process, treatment on quality of offspring seed desalination water, treatment on quality of water in a culturing process, routine culture and management and the like. By utilizing the staged desalinization culturing method for penaeus vannamei boone provided by the invention, the problem that penaeus vannamei boone dies due to osmotic pressure change caused by salinity change is overcome, and the desalinization culturing of the penaeus vannamei boone is achieved, thus the method provided by the invention has important practical application value.

The invention discloses a breeding method for fine breeds of the litopenaeus vannamei. The breeding method comprises the steps: (1), introduction of a basic population; (2), screening of the basic population; (3), intensifying of parent shrimps; (4), building of a family; (5), standardized breeding of young shrimps; (6), independent breeding of the family; (7), family testing; (8), determining of a target family; (9), expanding of propagation; (10), colony breeding of the target family; and (11), breed conservation. Compared with the prior art, the breeding method for the fine breeds of the litopenaeus vannamei has the advantages of being high and stable in yield, resistant to stress and suitable for the high-salinity and low-salinity breeding environment of China.

The invention discloses a special grass carp feed for shrimp and fish polyculture, which comprises the following components in percentage by weight:10-20% of rapeseed meal, 5-10% of cottonseed meal, 20-30% of wheat, 5-20% of DDGS (Distillers Dried Grains with Soluble), 10-20% of grass meal, 5-20% of brewer's grains, 0.1-1% of composite microbial ecological agent, 0.02-0.04% of L-carnitine, 2.5-4% of composite mineral salt trace elements and the balance of filler. Compared with the prior art, after being used, the special grass carp feed can effectively improve the water quality of a pool for shrimp and fish polyculture, also can enhance the released density of grass craps in the pool, improve the quantity of the grass craps, reduce sick probability of shrimps, improve bait coefficient of prawn and increase pool yield.

The invention relates to a litopenaeus vannamei relay type breeding mode. For the litopenaeus vannamei relay type breeding mode, phased breeding management of specific pond desalination and standard size breeding, high-density fine breeding and timely accurate sparse breeding is conducted in a greenhouse pond, a transition pond and a breeding bond respectively, beneficial microorganisms are used for conducting directional adjustment and control on pond microbial ecology in the whole breeding process, a technology of catching and stocking in rotation is combined, and litopenaeus vannamei relay breeding in different spaces is achieved. The litopenaeus vannamei relay type breeding mode has the advantages that the pond utilization rate is high, two-batch litopenaeus vannamei larvae can be bred in one year, the time of juvenile litopenaeus vannamei staying in the breeding pond is short, the water quality and substrate are not prone to deterioration, after the juvenile litopenaeus vannamei is put into the breeding pond, the survival rate is high, precision of breeding management measures of feeding and the like is easy, the breeding water quality and microbial ecology are easy to control, the breeding yield is high, and the breeding benefit is high.

The invention provides an ecological method for breeding young shrimps of litopenaeus vannamei in outdoor water. The method is characterized in that an indoor cement floor is changed into an outdoor cement floor, wherein the inoculation density of algae is controlled to be 5000-8000cell/ml; the inoculation time is controlled to the time before nauplii begin to be changed into zoea under the inoculation density; the synchronization between growth and propagation of the algae and requirements of an ecological system on the density of the algae is ensured; an inoculation density of rotifers is 5-10 /ml, and the inoculation time is the time before the nauplii begin to be changed into the zoea, thereby ensuring that the growth and propagation of the rotifers are e synchronous with the requirements of the young shrimps; the inoculation time of artemia is acanthosoma; the water transparency is retained at 80-120cm; the artemia has the effect of purifying the water; the content of ammonia nitrogen in the overall water is smaller than 0.2, and the content of nitrite is smaller than 0.02; the food intake of the young shrimps and the rotifers are not affected. Through the balance control on a young shrimp rearing water ecological system in the whole production process, the young shrimps take endogenous high-quality natural baits as the major food all the time; the cultured young shrimps of the litopenaeus vannamei are excellent in nutrition, healthy and high in quality.

The invention provides a culture water quality regulating and controlling method of a penaeus vannamei boone freshwater pond. The culture water quality regulating and controlling method comprises the following steps in sequence: (1) carrying out anaerobic nitrification; (2) carrying out aerobic nitrification; (3) purifying photosynthetic bacteria; (4) carrying out microalgae cultivation and purification. Water pumped out from the freshwater pond for culturing penaeus vannamei boone is subjected to the anaerobic nitrification, the aerobic nitrification, the photosynthetic bacterium purification and the microalgae cultivation and purification in sequence, and then the water is reflowed back to the freshwater pond for culturing penaeus vannamei boone. According to the culture water quality regulating and controlling method, organic matters in the pond water can be decomposed into small molecular substances and the small molecular substances are cultured and absorbed by the photosynthetic bacteria and mixotrophic microalgae, and are converted into a microalgae organism; the treated and qualified water and cultured beneficial microalgae are discharged into the pond for cyclic utilization; after the beneficial microalgae enter the pond, population advantage is formed and a culture biological environment is improved; the water quality treatment effect is good, and a whole water treatment process does not utilize a culture water body and normal growth of the penaeus vannamei boone is not influenced; the method is high in operability and low in operation cost, and is safe and reliable to the cultured penaeus vannamei boone.

The invention discloses a parent litopenaeus vannamei breeding system and method. The parent litopenaeus vannamei breeding system and method are designed and obtained by simulating the natural living state of litopenaeus vannamei. By means of the breeding system, the structure is simple, the energy consumption is saved, and management is convenient; as for the litopenaeus vannamei bred through the breeding system and method, bodies are strong, appendages are sound, body colors are transparent, stomachs and intestines are plump, body surfaces are smooth, attachments are avoided, and the three kinds of viruses including the WSSVes, the TSVes and the IHHNVes are avoided; in addition, the parent litopenaeus vannamei is large in egg laying amount, long in continuous egg laying time and high in nauplius hatchability, metamorphosis rate, young litopenaeus vannamei breeding rate and survival rate.

The present invention discloses a medicinal bait additive for preventing and treating enterocytozoon hepatopenaei of litopenaeus vannamei. The medicinal bait additive comprises the following components in parts by weight: 8-32 parts of marine red yeast powder, 30-75 parts of albendazole, 8-32 parts of spirulina powder and 5-10 parts of garlic powder. The medicinal bait additive is used in a compound feed for the litopenaeus vannamei and has an addition amount of only 6-12%; and the medicinal bait additive can also be mixed with the feed at a weight ratio of 1:10 for feeding before feeding. Themedicinal bait additive uses an internal administration route, so that a medicine internal environment is formed in a host body, the medicinal bait additive is subjected to blood circulation to reachtarget organs and parasites cannot survive. The medicinal bait additive can effectively kill the enterocytozoon hepatopenaei in the litopenaeus vannamei body, is non-toxic to the litopenaeus vannameibody, does not cause medicine residues in the litopenaeus vannamei body, at the same time also does not cause pollution to the breeding environment, and can effectively play a therapeutic role in thediseased litopenaeus vannamei infected by the enterocytozoon hepatopenaei.

The invention discloses a method for breeding macrobrachium nipponense in two seasons. The provided method for breeding macrobrachium nipponense is scientific and reasonable, living habits and nutrient demands of macrobrachium nipponense are fully taken into account, organic fertilizer is applied as base fertilizer and can serve as low-release fertilizer, and meanwhile, application of chemical fertilizer is avoided, so that influences of chemicals on young shrimps are reduced; since macrobrachium nipponense is characterized by preferentially eating food matched with their mouth sizes, macrobrachium nipponense is fed with feed matched with different mouth sizes according to different growth stages of macrobrachium nipponense, and therefore the requirement of eating food matched with the mouth sizes is met. By removing silt at regular time, injecting water, conducting oxygenation and carrying out other management methods, the content of toxic harmful organic matter and bait residues canbe effectively reduced, and water is kept clean and healthy. Macrobrachium nipponense bred by means of the method is high in yield and quality.

The invention discloses an ecological industrialized culture method and system for litopenaeus vannamei. Fresh seawater sequentially passes through a water treatment area, a high-position pond culturearea, a facility culture area, a solid metabolite collection area and a pond ecological culture area and the wetland purification area to recycle culture wastewater, the water quality pollution is treated in time, thus, the water quality of a shrimp pond is always kept in a good state, and the litopenaeus vannamei can grow normally and healthily.

The invention belongs to the technical field of aquaculture, and particularly relates to an aquaculture method for increasing the survival rate of penaeus vannamei boone. The aquaculture method includes preparation steps of 1), separately feeding every 100 pieces of penaeus vannamei boone with 0.7-0.9 g of feed A by 3-4 times on a daily basis at aquaculture earlier stages; 2), separately feeding the penaeus vannamei boone with feed B by 3-4 times on a daily basis at aquaculture middle stages; 3), separately feeding the penaeus vannamei boone with conventional special penaeus vannamei boone feed by 3-4 times on a daily basis at aquaculture later stages; carrying out other aquaculture steps according to conventional processes. The daily feeding quantity of the feed B accounts for 4-6% of thetotal weight of the penaeus vannamei boone in each pond. The daily feeding quantity of the conventional special penaeus vannamei boone feed accounts for 3-4% of the total weight of the penaeus vannamei boone in each pond. The aquaculture method has the advantages that traditional Chinese medicine liquid is sprayed to the conventional special penaeus vannamei boone feed at the aquaculture earlierstages and the aquaculture middle stages of the penaeus vannamei boone, synergistic effects can be realized by various raw materials of the traditional Chinese medicine liquid, and accordingly the survival rate of the penaeus vannamei boone can be effectively increased; the raw materials for the traditional Chinese medicine liquid are natural, non-toxic, green and safe, and influence on the palatability of the feed can be prevented.

The invention provides application of prawn nauplii in clearing of zooplankton in a shellfish aquaculture pond. In the shellfish aquaculture pond, no bait is fed to the stocking prawn nauplii. The biological characteristic that the healthy prawn nauplii intake zooplankton such as rotifers, copepoda and cladocerans in the growth process is utilized; meanwhile, the characteristic that shellfish in the pond cannot be injured or interfered is utilized; a biological method is used for clearing the zooplankton in the shellfish aquaculture pond. Compared with an existing medicine-using method and an existing physical fishing removing method, the method adopted by the invention has the advantages that the use is convenient; the operation is simple; the cost is low; medicine residue hidden danger does not exist; the safety is high; economy and feasibility are realized, and the like.

The invention discloses an additive premix for a high-salinity cultured pennaus vannamei feed. The premix comprises composite vitamins and composite trace elements, wherein the composite vitamins and the composite trace elements are mixed in a ratio of 1: (2-4) to prepare the premix, and 20 to 30kg of the premix is added in every ton of the pennaus vannamei feed. The additive premix of the high-salinity cultured pennaus vannamei feed is stable in raw material source, high in nutrition value, capable of meeting the needs of high-salinity cultured pennaus vannamei on vitamins and trace elements, is safe, efficient and free of toxic and side effects if used for a long time; the vitamins and the trace elements in the premix for the pennaus vannamei feed are prepared separately, and therefore the relative stability of physicochemical properties among the various nutrients is ensured and a high biological value is achieved; the additive premix for the high-salinity cultured pennaus vannamei feed is capable of remarkably enhancing the immune function and the anti-stress ability of pennaus vannamei in a high-salinity culture environment, and the cultured pennaus vannamei grows fast, is high in feed conversion rate, is full of vitality, has a bright body colour, and is high in survival rate.

The invention discloses a breeding method for a novel salinity-fluctuation-resistant variety of Penaeus monodon. According to the invention, by starting with Penaeus monodon larvae for domestication and selection, and by adoption of simultaneous and slow decrease of upper and lower limit salinities in each salinity range at first, the salinity gradually declines to about 15 degrees from a high initial level, and gradual decrease of a median in each salinity range is guaranteed, so an average salinity is reduced, and Penaeus monodon is mainly to gradually adapt to the growth environment of a low salinity in Penaeus monodon larva and young Penaeus monodon stages; and after completion of above-mentioned salinity decrease, by continuous remaining of a manner of simultaneous decrease of an upper limit salinity and a lower limit salinity, significant enhancement of a fluctuation range formed by a difference salinity of the upper and lower limit salinities starts to emerge during salinity decrease, and with changing of the salinity fluctuation range to a greatest extent, the lower limit salinity in a salinity range gradually declines to a lowest level at the same time; thus, the young Penaeus monodon basically grows into adult Penaeus monodon and has stronger stress-resistant ability, and the overall trend is to guarantee slow and gradual decrease of the salinity of a breeding water body and to enable the Penaeus monodon to be able to adapt to significant fluctuation of the salinity at the same time.

The invention in particular relates to an application of a bdellovibrio sp. leech plasmid in cultivating marine products such as penaeus monodon, and the like. The invention is realized by adding a bdellovibrio sp. leech plasmid to the water body and the feeds. The invention is realized specifically based on cultivation pond conditions, preparation before stocking, shrimp postlarvae selecting andstocking, feeding management and water environment management in the cultivation period. The invention is characterized by adding a bdellovibrio sp. leech plasmid bacterium solution to the water bodyand ensuring the concentration of the bdellovibrio sp. leech plasmid in the water body to be 101-107pfu/mL, simultaneously soaking the feeds in the bdellovibrio sp. leech plasmid bacterium solution with the concentration of 101-107pfu/mL for 30 minutes and changing water once every 30 days in the cultivation period. The invention provides a method for cultivating organisms. The method has the advantages of environment friendliness, safety, no pollution, obvious effect and capabilities of improving the water quality, promoting growth of penaeus monodon, improving the immunity and improving thesurvival rate, thus having wonderful development prospect. The invention has very important significance in improving the economic benefits and eating safety and guaranteeing human health.