CN104255623B - The artificial raise seedling method of a kind of ripple lip fish - Google Patents

Abstract

The invention discloses a method for artificially cultivating seedlings of the corrugated lip fish, which comprises the following steps: A. selecting a seedling pond; B. disinfecting the seedling pond; C. filling the seedling pond; D. cultivating plankton; E. setting an incubator ; F, hatching of fertilized eggs; G, larvae put into the nursery pond; H, water quality management in the nursery pond; I, management of aeration machine; J, bait feeding and management of 4-5 days old larvae; 6-13 days old bait feeding and management; L, larvae 14-23 days old bait feeding and management; M, larvae 24-28 days old bait feeding and management; N, larvae 29-40 days old Feeding and management of bait; O, the catch of corrugated lip fish. The present invention is applied to the technical field of aquaculture, and the juvenile fish can be cultivated in batches by using the artificial seedling raising method of the wrasse provided by the present invention. The artificial seedling raising method is scientific, reasonable and efficient.

Description

A kind of artificial breeding method of corrugated lip fish

technical field

The invention relates to the technical field of aquaculture, in particular to a method for artificially raising seedlings of the wrasse.

Background technique

The corrugated lip fish (Cheilinus undulatus Rüppell), commonly known as Sumei and Napoleon fish, belongs to the order Perciformes, the family Wrasse, and the genus Cheilinus. It is one of the largest coral reef fishes, with adults up to 200cm in length. It is mainly distributed on the east coast of Africa, the Red Sea and from the Indian Ocean to the center of the Pacific Ocean. It is distributed in the South my country Sea and the southern part of the East China Sea. Corrugated lip fish is a delicacy on the plate of Asians. Due to overfishing and other reasons, the corrugated lip fish is on the verge of extinction. In 2004, the World Wildlife Fund announced the list of 10 endangered species, and the corrugated lip fish ranked second; in the same year, the fish species was included in the IUCN (International Union for Conservation of Nature) Red Book of Endangered Animals; in 2005, it was included in the CITES " Appendix II of the Convention on International Trade in Endangered Species of Wild Fauna and Flora.

The corrugated lip fish has been overfished, and the resource decline has received great attention, and related research has gradually increased. Sadovy et al. (2003) conducted a detailed review report on the past research from the aspects of the geographical distribution, habitat, abundance, biology, fishery resources and utilization, trade, mariculture and protection status of the corrugated lip fish, and believed that the The fingerlings have not been successfully reared in hatcheries and require urgent management or conservation. Sluka et al. (2005) surveyed the chrysalis off the west coast of India and found its density to be very low. Choat et al. (2006) studied the otoliths of the corrugated lip fish in northeastern Australia and found that the maximum age of males is 25 years old, the maximum age of females is 30 years old, and the annual mortality rate is 10% to 14%. Females are precocious, but not Not all fish are sexually reversed. JohnE.Randall (1978) studied the feeding habits of the Pacific Red Sea corrugated lip fish, showing that the fish mainly feeds on molluscs, fish, sea urchins and crustaceans. Dorenbosch et al. (2006) surveyed the corrugated lip fish on four islands in the western Indian Ocean and considered seagrass beds and mangroves to be important habitats for their larvae. P.L.Colin (2010) observed that the corrugated lip browfish gathers to spawn at a specific location on the seaward edge of the barrier reef after high tide every day, and believes that the annual variation of the fish's spawning is related to seasons and moon phases. Olivier Chateau and Laurent Wantiez (2006) used the method of radio telemetry to study the home range size and activity rhythm of the corrugated lip fish.

In terms of artificial reproduction, Murdjani (1999) had artificially induced spawning of the chrysalis, with a hatching rate of 30% to 80%, but most of the larvae could only survive for 16 days. There are few domestic researches on the corrugated lip fish. Chen Guohua of Hainan University et al. (2009, 2010) conducted chromosome karyotype analysis, morphological anatomy and histological research on the digestive system of the corrugated lip fish. The fish has 48 chromosomes and is carnivorous without stomach. In fish, the overall length of the digestive tract is extremely short, the jaws and pharyngeal teeth are well developed, the intestines are extremely thick, the liver is divided into three lobes, and the pancreas is diffusely distributed in the liver tissue. Under the situation that the pleura is on the verge of extinction, it is an effective way to protect the natural resources of the pleura and meet people's demand for the pleura to solve the seed problem by artificial breeding and then realize commercial breeding.

Contents of the invention

The problem to be solved by the present invention is to design a scientific, reasonable, efficient and artificial breeding method for cultivating the fertilized eggs of the chrysalis into juveniles in batches, aiming at the deficiencies of the above-mentioned technologies.

The technical scheme that the present invention adopts for solving its problem is:

A method for artificial breeding of corrugated lip fish, comprising the following steps:

A. Selection of nursery ponds: Select irrigation ponds, convenient drainage, an area of 2 to 5 acres, a flat bottom, a pond depth of more than 2.5m, a water storage depth of more than 2m, a water temperature of 27 to 31.5°C during seedling cultivation, and access to clean seawater. The pond is used as a nursery pond, and the water area of each mu of the nursery pond is provided with 1 aeration machine, and a circle of aerated stones is set at 1m from the edge of the nursery pond, and the distance between the aerated stones is 1m, and the aerated stones are connected to the aerator;

B. Disinfection of nursery ponds: Manually remove the sundries at the bottom of the nursery ponds, mainly including sludge and enteromorpha, let the nursery ponds be exposed to the sun for 3-4 days, and irrigate to make the water level of the nursery ponds reach 10-20cm deep. Sprinkle 10-20kg of bleaching powder on the whole pond per mu of water area for disinfection. After confirming that all the fish, crustaceans and molluscs in the nursery pond are dead, discharge the water in the nursery pond, and let the nursery pond dry in the sun for 1 ~2d;

C. Irrigation of the nursery pond: 4-5 days before the fertilized eggs are purchased, the nursery pond is filled with water to make the water level of the nursery pond reach 1.5-1.8m. The seawater poured into the nursery pond has been made of 200-mesh silk screen in advance filter bag filter, retain the micro plankton in the water, and filter out the small plankton;

D. Cultivate plankton: Sprinkle 30kg of bio-organic fertilizer particles per mu of water area in the nursery pond, start the aerator and the aerator of the nursery pond to promote uniform fertilization, and after 4 to 5 days of cultivation water quality, check the plankton in the water body of the nursery pond biological condition;

E. Set up the incubator: the incubator is made of colored striped cloth, in a square shape, with a size of 4m×3m×1m or 6m×3m×1m. The incubator is set in the nursery pond through a fixed frame, so that the upper edge of the incubator is high The water level of the nursery pond is 0.1-0.15cm. In the hatching box, one aerated stone is evenly arranged per square meter. The aerated stone is connected to the aerator and is covered with a sunshade net with a shading rate of 90% above the incubator. Avoid direct sunlight. On the day when fertilized eggs are purchased, clean seawater is directly extracted from the sea area. The water temperature is required to be 27-29°C. The seawater is filtered through a filter bag made of 200-mesh silk mesh and poured into the incubator until the water level of the incubator is reached. When the depth reaches 0.85-0.9m, turn on the inflator of the incubator to continuously inflate the water body of the incubator;

F. Incubation of fertilized eggs: Put the purchased fertilized eggs together with the packaging bag into the incubator for 0.5 to 1 hour until the water temperature in the packaging bag is consistent with that of the incubator, then unpack the bag and let the fertilized eggs enter the incubator to hatch , the hatching density of fertilized eggs is 200×10 ³ to 300×10 ³ grains/m ³ , under the condition of aeration, the fertilized eggs roll in the water body, counting from the time of fertilization, and the fertilized eggs hatch into larvae after 15 to 16 hours. After hatching, stay in the incubator and cultivate for 3 days;

G, the larvae are put into the nursery pond: when the larvae are 4 days old after they leave the film, turn off the aerator in the nursery pond, turn on the inflator in the nursery pond for uninterrupted inflation, untie the incubator from the fixed frame, and let the incubator four The edge part sinks below the level of the nursery pond, and the aerated stone in the hatch box continues to inflate, allowing the larvae to slowly swim into the nursery pond under the action of the water flow. After 2 to 3 hours, all the larvae in the hatch box enter the nursery pond, and remove the hatch. box;

H. Water quality management in nursery ponds: take transparency as an indicator, and keep the transparency of the nursery pond at 35-40cm. When the transparency is too high, extract seawater rich in unicellular algae from other fish ponds or shrimp ponds for adjustment. When the transparency is too low , adjust by adding clean sea water before the larvae are 15 days old, and adjust by changing the water after the larvae are 15 days old;

1, the management of aeration machine: start all aeration machines when raising water in the nursery pond, close the aeration machine before the larvae are put into the nursery pond, and when the larvae are 10 days old, open half of the aerators, When the larvae are 15 days old, all aerators are turned on until the nursery is finished;

J. Feed feeding and management of larvae at 4 to 5 days old: artificially feeding, mainly using protozoa cultivated in nursery ponds as larvae bait, and keeping the density of protozoa in the water body of nursery ponds at 0.1×10 ⁶ to 1× 10 ⁶ ind/l, control the density of rotifers to no more than 1×10 ³ ind/l, and the density of copepod larvae to no more than 0.5×10 ³ ind/l, so as not to reduce the density of unicellular algae and protozoa in nursery ponds , when the density of protozoa is found to be insufficient, fertilized shellfish eggs are put into the nursery pond as a supplement to the insufficient density of protozoa, so that the total density of bait organisms meets the requirements;

K. Feeding and management of larvae 6 to 13 days old: feeding rotifers into the nursery ponds artificially, keeping the density of rotifers at 3×10 ³ to 4×10 ³ ind/l, and maintaining the density of protozoa 0.1×10 ⁶ ～1×10 ⁶ ind/l, when the density of protozoa is insufficient, the fertilized eggs of shellfish are put into the nursery pond as a supplement, so that the total density of bait organisms can meet the requirements;

L. Feed feeding and management of larvae 14-23 days old: artificially feeding, keeping the density of rotifers at 5×10 ³ ～6×10 ³ ind/l, increasing the input of copepod larvae, requiring copepods The density of larvae is 3×10 ³ ～5×10 ³ ind/l, and the density of protozoa is allowed to decrease;

M. Feed feeding and management of larvae aged 24-28 days: larvae begin to grow scales during this period, with a total length of 7-8mm, and their living habits change from planktonic to benthic. Maintain good water quality and sufficient bait to ensure Successfully complete metamorphosis, maintain the density of rotifers at 5×10 ³ to 6×10 ³ ind/l by artificial feeding, increase the input of copepod larvae, and require the density of copepod larvae to be 3×10 ³ to 5×10 ³ ind/l, let the protozoan density decrease;

N. Feed feeding and management of 29-40-day-old larvae: artificial feeding is used to maintain the density of copepod larvae in the nursery pond at 3×10 ³ to 5×10 ³ ind/l, and rotifers and protozoa are allowed to Density reduction;

O. The start of catching the corrugated lip fish: start catching when the full length of the corrugated lip fish reaches 1.3-1.5cm at the age of 40 days, first drain the water to reduce the water level of the nursery pond to 0.8m, choose the side with more fish, and use a cloth net Surround the 1/4 area of the nursery pond, carefully catch the corrugated lip fish, transport it to the cement pond for classification, and temporarily raise it for sale or transfer to the next stage of cultivation.

The beneficial effects of the present invention are: the present invention is applied to the technical field of aquaculture, and what the present invention provides is to select a nursery pond, filter the seawater poured into the nursery pond, effectively control the composition of the initial plankton in the water body of the nursery pond, and reduce the ripple The fertilized eggs of the lip fish are cultivated in the incubator to prevent the larvae from sinking to the bottom and die when they do not have the ability to swim actively, and to improve the survival rate of the larvae. According to the different developmental stages of the larvae, they are fed with suitable bait organisms, and at the same time control The unfavorable amount of plankton reaches the method of cultivating the fertilized eggs of the corrugated lip fish into juveniles in batches. The method is scientific, reasonable and efficient.

detailed description

The conception and technical effects of the present invention will be clearly and completely described below in conjunction with the embodiments, so as to fully understand the purpose, features and effects of the present invention. Apparently, the described embodiments are only some of the embodiments of the present invention, rather than all of them. Based on the embodiments of the present invention, other embodiments obtained by those skilled in the art without creative efforts belong to The protection scope of the present invention.

A kind of artificial breeding method of corrugated lip fish provided by the present invention comprises the following steps:

A. Selection of nursery ponds: Select irrigation ponds, convenient drainage, an area of 2 to 5 acres, a flat bottom, a pond depth of more than 2.5m, a water storage depth of more than 2m, a water temperature of 27 to 31.5°C during seedling cultivation, and access to clean seawater. The pond is used as a nursery pond, and one aerator is set per mu of water area in the nursery pond, and a circle of aerated stones is set at 1m from the edge of the nursery pond, and the distance between the connected aerated stones is 1m, and the aerated stones are connected to the aerator. As a preferred embodiment, the selected nursery pond area is 4.5 mu, and the aerator is an impeller type aerator, and the seedling pond is covered with a sunshade net with a light blocking rate of 80%.

B. Disinfection of nursery ponds: Manually remove sludge, enteromorpha and other sundries at the bottom of the nursery ponds, expose the nursery ponds to the sun for 3 to 4 days, and irrigate to make the water level of the nursery ponds reach 10 to 20 cm. Sprinkle 10-20kg of bleaching powder on the water area of the pond for disinfection. After confirming that all fish, crustaceans and molluscs in the nursery pond are dead, drain the water in the nursery pond, and let the nursery pond dry in the sun for 1-2 days . As a preferred embodiment, remove the sundries at the bottom of the seedling pond and let the seedling pond air for 4d under the sun, after the water intake, the water area per mu of the seedling pond is sprinkled with 20kg of bleaching powder, after discharging the water in the seedling pond, let The nursery ponds were dried in the sun for 2 days.

C, irrigation of nursery ponds: before purchasing fertilized eggs, pour water into the nursery ponds to make the water level depth of the nursery ponds reach 1.5-1.8m. As a preferred embodiment, the water level depths of the nursery ponds should reach 1.8m. The seawater poured into the nursery pond has been filtered with a filter bag made of 200-mesh silk net in advance to retain the micro plankton in the water and filter out small plankton and larger plankton. The micro plankton in the nursery pond mainly includes Single-celled algae, protozoa, etc., small plankton mainly include rotifers, copepod larvae, etc. If the seawater poured into the nursery pond is not filtered through a 200-mesh filter bag, when there are many rotifers and copepod larvae in the nursery pond, the number of single-celled algae and protozoa will grow slowly, resulting in the lack of open bait for the corrugated lip fish.

D. Cultivate plankton: Sprinkle 30kg of bio-organic fertilizer particles per mu of water area in the nursery pond, start the aerator and the aerator of the nursery pond to promote uniform fertilization, and after 4 to 5 days of cultivation water quality, check the plankton in the water body of the nursery pond Biological situation. As a preferred embodiment, bio-organic fertilizer granules are required to meet the NY884-2004 ministerial standard (①The number of effective viable bacteria is ≥0.2 billion/g; ②The organic matter content is ≥25%; ③Moisture content≤15.0%; ④The pH value is 5.5-8.5; ⑤ The number of fecal coliforms ≤ 100/g; ⑥ The death rate of roundworm eggs ≥ 95%); while the plankton in the water body reaches a transparency of 37cm, diatoms 1.47×10 ⁶ , green algae 1.265×10 ⁶ , and golden algae 0.275× 10 ⁶ , the total of dinoflagellates, cyanobacteria, and cryptophytes is 0.825×10 ⁶ , protozoa 0.816×10 ⁶ , shellfish larvae 50×10 ³ , rotifers 0.5×10 ³ , copepod larvae 0.5×10 ³ are better.

E. Set up the incubator: the incubator is made of colored striped cloth, in a square shape, with a size of 4m×3m×1m or 6m×3m×1m. The incubator is set in the nursery pond through a fixed frame, so that the upper edge of the incubator is high The water level of the nursery pond is 0.1-0.15cm. In the hatching box, one aerated stone is evenly arranged per square meter. The aerated stone is connected to the aerator and is covered with a sunshade net with a shading rate of 90% above the incubator. Avoid direct sunlight. On the day when fertilized eggs are purchased, clean seawater is directly extracted from the sea area. The water temperature is required to be 27-29°C. The seawater is filtered through a filter bag made of 200-mesh silk mesh and poured into the incubator until the water level of the incubator is reached. When the depth reaches 0.85-0.9m, turn on the inflator of the incubator to continuously inflate the water body of the incubator.

F. Incubation of fertilized eggs: Put the purchased fertilized eggs together with the packaging bag into the incubator for 0.5 to 1 hour until the water temperature in the packaging bag is consistent with that of the incubator, then unpack the bag and let the fertilized eggs enter the incubator to hatch , the hatching density of fertilized eggs is 200×10 ³ to 300×10 ³ grains/m ³ , under the condition of aeration, the fertilized eggs roll in the water body, counting from the time of fertilization, and the fertilized eggs hatch into larvae after 15 to 16 hours. After hatching, they were kept in the incubator for 3 days. As a preferred embodiment, the hatching density of fertilized eggs in the incubator is 200×10 ³ grains/m ³ , the water temperature in the incubator is 29°C, the larvae hatch after 16 hours of embryo development, and the larvae are cultivated in the incubator for 3 days. The organs of the newly hatched larvae are not fully developed, their mobility is poor, they cannot actively swim, and they only move occasionally in the water body. On the 4th day in the incubator (larvae are 3 days old), the total length of the larvae is 3.0mm, their mobility is enhanced, and they can actively swim. Swimming, and feeding movements appear.

G, the larvae are put into the nursery pond: when the larvae are 4 days old after they leave the film, turn off the aerator in the nursery pond, turn on the inflator in the nursery pond for uninterrupted inflation, untie the incubator from the fixed frame, and let the incubator four The edge part sinks below the level of the nursery pond, and the aerated stone in the hatch box continues to inflate, allowing the larvae to slowly swim into the nursery pond under the action of the water flow. After 2 to 3 hours, all the larvae in the hatch box enter the nursery pond, and remove the hatch. box. As a preferred embodiment, before the larvae are placed in the nursery pond, the water quality indicators of the nursery pond are required to reach a transparency of 35 cm, diatoms 1.29×10 ⁶ /l, green algae 1.22×10 ⁶ ind/l, and golden algae 0.41×10 ⁶ ind, dinoflagellates, cyanobacteria, cryptophytes, and yellow algae total 0.66×10 ⁶ ind/l, protozoa 0.815×10 ⁶ ind/l, shellfish larvae 62.5×10 ³ ind/l, rotifers 0.687×10 ³ ind/l l, 0.417×10 ³ ind/l for copepod larvae is better.

H. Water quality management in nursery ponds: take transparency as an indicator, and keep the transparency of the nursery pond at 35-40cm. When the transparency is too high, extract seawater rich in unicellular algae from other fish ponds or shrimp ponds for adjustment. When the transparency is too low , before the larvae are 15 days old, they can be regulated by adding clean seawater, and after the larvae are 15 days old, they can be regulated by changing the water.

1, the management of aeration machine: start all aeration machines when raising water in the nursery pond, close the aeration machine before the larvae are put into the nursery pond, and when the larvae are 10 days old, open half of the aerators, When the larvae were 15 days old, all aerators were turned on until the nursery was finished.

J. Feed feeding and management of larvae at 4 to 5 days old: artificially feeding, mainly using protozoa cultivated in nursery ponds as larvae bait, and keeping the density of protozoa in the water body of nursery ponds at 0.1×10 ⁶ to 1× 10 ⁶ ind/l, control the density of rotifers to no more than 1×10 ³ ind/l, and the density of copepod larvae to no more than 0.5×10 ³ ind/l, so as not to reduce the density of unicellular algae and protozoa in nursery ponds , when the density of protozoa is found to be insufficient, shellfish fertilized eggs are put into the nursery pond as a supplement to the insufficient density of protozoa, so that the total density of bait organisms can meet the requirements. As a preferred embodiment, the shellfish fertilized eggs are preferably oyster fertilized eggs.

K. Feeding and management of larvae 6 to 13 days old: feeding rotifers into the nursery ponds artificially, keeping the density of rotifers at 3×10 ³ to 4×10 ³ ind/l, and maintaining the density of protozoa 0.1×10 ⁶ ～1×10 ⁶ ind/l, when the density of protozoa is insufficient, the fertilized eggs of shellfish are put into the nursery pond as a supplement, so that the total density of bait organisms can meet the requirements.

L. Feed feeding and management of larvae 14-23 days old: artificially feeding, keeping the density of rotifers at 5×10 ³ ～6×10 ³ ind/l, increasing the input of copepod larvae, requiring copepods The density of larvae is 3×10 ³ ～5×10 ³ ind/l, and the density of protozoa is allowed to decrease.

M. Feed feeding and management of larvae aged 24-28 days: larvae begin to grow scales during this period, with a total length of 7-8mm, and their living habits change from planktonic to benthic. Maintain good water quality and sufficient bait to ensure Successfully complete metamorphosis, maintain the density of rotifers at 5×10 ³ to 6×10 ³ ind/l by artificial feeding, increase the input of copepod larvae, and require the density of copepod larvae to be 3×10 ³ to 5×10 ³ ind/l, let the protozoan density decrease.

N. Feed feeding and management of 29-40-day-old larvae: artificial feeding is used to maintain the density of copepod larvae in the nursery pond at 3×10 ³ to 5×10 ³ ind/l, and rotifers and protozoa are allowed to Density decreases.

O. The start of catching the corrugated lip fish: start catching when the full length of the corrugated lip fish reaches 1.3-1.5cm at the age of 40 days, first drain the water to reduce the water level of the nursery pond to 0.8m, choose the side with more fish, and use a cloth net Surround the 1/4 area of the nursery pond, carefully catch the corrugated lip fish, transport it to the cement pond for classification, and temporarily raise it for sale or transfer to the next stage of cultivation. Since the water source of the nursery pond is directly taken from the sea, although the water body of the nursery pond is filtered through a 200-mesh filter bag, it cannot completely filter out the nauplius of crabs. The latter grows and develops with the larvae in the nursery pond. It is easy to be caught by crabs, so it should be caught as soon as possible, and because the corrugated lip fish has already grown scales, it can withstand the stimulation of catching.

When transporting fertilized eggs, it is necessary to calculate the departure time to ensure that the larvae will not hatch during transportation. If the transportation time is long and the method of fertilized egg transportation cannot reach the destination before the larvae come out of the membrane, the larvae should be transported instead. After all the larvae come out of the film, the seedlings can be harvested, packaged and transported.

The preferred embodiments of the present invention have been described in detail above, but the present invention is not limited to the described embodiments, and those skilled in the art can also make various equivalent modifications or replacements without departing from the spirit of the present invention. Equivalent modifications or replacements are all included within the scope defined by the claims of the present application.

Claims (1)

1. an artificial raise seedling method for ripple lip fish, is characterized in that, comprises the following steps:

Choosing of A, the pond of growing seedlings: choose pour water, draining facility, area be smooth at the bottom of 2～5 mu, pond, the dark 2.5m in pond above, holdWater depth 2m is above, water temperature is 27～31.5 DEG C between nursery stage, the pond that can obtain clean sea water is as the pond of growing seedlings, nursery pondEvery mu of water area on the pool arranges 1, aerator, apart from edge 1m place, the nursery pond side of a pond, one circle gas charging stone is being set, between the gas charging stone that is connectedApart from being 1m, described gas charging stone is connected in inflator;

The sterilization in B, the pond of growing seedlings: the artificial foreign material of removing the pond bottom of growing seedlings, allow the pond of growing seedlings tan by the sun 3～4d under the sun,The pond water level depth that makes to grow seedlings of pouring water reaches 10～20cm, to every mu of water area in the pond of growing seedlings with the full pond of bleaching powder 10～20kgSplash, for sterilization, confirm to grow seedlings after fish in pond, shell-fish, the whole death of software class, discharge and grow seedlings in pondWater, then allow the pond airing 1～2d under the sun that grows seedlings;

Pouring water of C, the pond of growing seedlings: buying the front 4～5d of embryonated egg, pour water to the pond of growing seedlings, pond water level depth makes to grow seedlingsReach 1.5～1.8m, fill with into the seawater in the pond of growing seedlings and adopted in advance the filter bag that 200 mesh sieve tulles are made to filter, retain waterIn nanoplankton, filtering microplankton;

D, cultivate planktonic organism: to every mu of water area in the pond of growing seedlings biological organic fertilizer particle 30kg that splashes, start aerator andThe grow seedlings inflator in pond, impels fertilising evenly, cultivates after water quality 4～5d, checks the planktonic organism feelings of growing seedlings in pond watersCondition;

E, incubator is set: incubator colour bar cloth is made, and is square, and specification is 4m × 3m × 1m or 6m × 3m × 1m, hatchingCase is arranged on and is grown seedlings in pond by fixed mount, makes the upper edge of incubator exceed the pond water level 0.1～0.15cm that grows seedlings, in hatchingIn case, by every square metre of area, 1 of gas charging stone is evenly set, described gas charging stone is connected in inflator, and uses above incubatorThe sunshade net of 90% shading rate hides, and avoids sunshine shining directly, on the same day of buying embryonated egg, directly extracts clean sea from sea areaWater, water temperature requires 27～29 DEG C, and the filter bag that seawater is made through 200 mesh sieve tulles pours into incubator after filtering, until incubatorWater level depth reaches 0.85～0.9m, opens the inflator of incubator, and incubator water body is done to continual inflation;

The hatching of F, embryonated egg: put the embryonated egg of buying into incubator 0.5～1h together with packaging bag, until the water in packaging bagTemperature is consistent with the water temperature of incubator, takes packaging bag apart, allows embryonated egg enter in incubator and hatches, and the hatching density of embryonated egg is200×10³～300×10³Grain/m³, under venting condition, embryonated egg is rolled in water body, starts timing, embryonated egg from fertilizationAfter 15～16h, hatch prelarva, after prelarva hatches, stay and in incubator, cultivate 3d;

G, prelarva are put into the pond of growing seedlings: after prelarva membrane when 4 age in days, the aerator of cutting out the pond of growing seedlings, opens the pond of growing seedlingsInflator is done uninterrupted inflation, and incubator is untied from fixed mount, appoints four edge parts of incubator to sink to the pond water of growing seedlingsUnder plane, the gas charging stone in incubator continues inflation, appoints prelarva slowly to swim into the pond of growing seedlings under flow action, after 2～3h,Treat that the prelarva in incubator all enters the pond of growing seedlings, and removes incubator;

The water quality management in H, the pond of growing seedlings: taking transparency as index, keep growing seedlings pond transparency 35～40cm, transparency is too highTime, extract the seawater that is rich in unicellular alga from other piscinas or the shrimp-cultivation pool pool and regulated, when transparency is too low, sonBefore fish 15 ages in days, to add clean seawater to be regulated, after prelarva 15 ages in days, regulated by changing water;

The management of I, aerator: start to pour water in the pond of growing seedlings and open whole aerators while cultivating water quality, put into and educate prelarvaSeedling is closed aerator before pond, in the time of prelarva 10 age in days, opens the aerator of half quantity, in the time of prelarva 15 age in days, opens allAerator is until the end of growing seedlings;

Bait feeding and the management of J, prelarva 4～5 ages in days: in the mode of manually throwing something and feeding, mainly utilize the former of pond rearing of growing seedlingsLively thing is as live food, and in the pond waters that keeps growing seedlings, protozoan density is 0.1 × 10⁶～1×10⁶Ind/l, controlsWheel animalcule density no more than 1 × 10³Ind/l, copepod larva density is not more than 0.5 × 10³Ind/l, grows seedlings in pond in order to avoid causeUnicellular alga and protozoic density reduce, and in the time finding that protozoan density is not enough, grow seedlings by shellfish embryonated egg inputPond supplements as protozoan density deficiency, makes food organisms gross density reach requirement;

Bait feeding and the management of K, prelarva 6～13 ages in days: in the mode of manually throwing something and feeding, drop into wheel animalcule to the pond of growing seedlings, keepWheel animalcule density 3 × 10³～4×10³Ind/l, keeps protozoan density 0.1 × 10⁶～1×10⁶Ind/l, protozoan densityWhen not enough, grow seedlings pond as a supplement with shellfish embryonated egg input, make food organisms gross density reach requirement;

Bait feeding and the management of L, prelarva 14～23 ages in days: in the mode of manually throwing something and feeding, keep wheel animalcule density 5 × 10³～6×10³Ind/l, the copepod larva of increasing input, requires copepod larva density 3 × 10³～5×10³Ind/l, the protozoan of leavingDensity reduces;

Bait feeding and the management of M, prelarva 24～28 ages in days: prelarva starts to grow scale during this period, and total length reaches 7～8mm,Life habit transfers the end to dwells by swimming, and keeps good water quality and sufficient bait, ensures to complete smoothly metamorphosis, manually to throw something and feedMode, keep wheel animalcule density 5 × 10³～6×10³Ind/l, the copepod larva of increasing input, requires copepod larva density 3×10³～5×10³Ind/l, the protozoan density of leaving reduces;

Bait feeding and the management of N, prelarva 29～40 ages in days: in the mode of manually throwing something and feeding, keep growing seedlings pond copepod larvaDensity 3 × 10³～5×10³Ind/l, leave wheel animalcule and protozoan density reduce;

The harvesting of O, ripple lip fish: harvesting in the time that ripple lip fish 40 age in days total lengths reach 1.3～1.5cm, first draining makes nursery pondPool water level depth is down to 0.8m, selects the side that the shoal of fish is many, and using arranges net surrounds 1/4 area in the pond of growing seedlings, carefully by rippleLip tattooing fish has been fished for, and transports to cement pit point specification, supports temporarily, prepares to sell or proceeds to next stage and cultivate.