CN111955388B - Method for breeding larval and juvenile pseudosciaena crocea in indoor cement pond - Google Patents
Method for breeding larval and juvenile pseudosciaena crocea in indoor cement pond Download PDFInfo
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- CN111955388B CN111955388B CN202010993735.4A CN202010993735A CN111955388B CN 111955388 B CN111955388 B CN 111955388B CN 202010993735 A CN202010993735 A CN 202010993735A CN 111955388 B CN111955388 B CN 111955388B
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; CARE OF BIRDS, FISHES, INSECTS; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K61/00—Culture of aquatic animals
- A01K61/10—Culture of aquatic animals of fish
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- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23K—FODDER
- A23K10/00—Animal feeding-stuffs
- A23K10/20—Animal feeding-stuffs from material of animal origin
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- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23K—FODDER
- A23K50/00—Feeding-stuffs specially adapted for particular animals
- A23K50/80—Feeding-stuffs specially adapted for particular animals for aquatic animals, e.g. fish, crustaceans or molluscs
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/80—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management
- Y02A40/81—Aquaculture, e.g. of fish
Abstract
The invention relates to the technical field of scatophagus argus breeding, and provides a method for breeding larvae and young fishes in a cement pond in a scatophagus argus room. Establishing a bait sequence and a feeding method for larval and juvenile scatophagus argus, and solving the technical problem of starter opening of scatophagus argus fries; the technical parameters of the water environment for cultivating the pseudolarix parva larvae and the juvenile fish are determined, the temperature-control and salt-adjusting technology is adopted, the growth efficiency and the cultivation survival rate of the pseudolarix parva larvae are improved, and the blank of the field of artificial cultivation of pseudolarix parva offspring seeds is filled.
Description
Technical Field
The invention belongs to the technical field of pseudosciaena crocea breeding, and particularly relates to a pseudosciaena crocea indoor cement pond larval and juvenile fish breeding method.
Background
Scatophagus argus (Scatophagus argus) also known as Scopalaena formosanus belonging to Perciformes (Perciformes), Lysimachia (Scatophagae), Lysimachia (Scatophagus). The scatophagus argus lives at the junction of salt and fresh water at the mouth of a river, belongs to estuary fishes, is native to Indonesia, Thailand, Philippines and other places, has wide-temperature and wide-salt properties, and can be cultured in seawater, salt and fresh water. The pseudosciaena crocea is flat and disc-shaped, has bright and colorful body colors, delicious meat quality and double values of appreciation and eating, and becomes a new species for artificial culture in coastal areas in south China in recent years.
At present, the pseudosciaena crocea fries are mainly derived from wild fish fries caught by sea, and the natural resource quantity of the pseudosciaena crocea is gradually reduced along with the deterioration of sea environment and excessive catching. Artificial breeding of the scatophagus argus has been reported sporadically, but the fingerling breeding technology of the scatophagus argus has not been broken through.
Disclosure of Invention
The invention aims to solve the problems and provide a method for cultivating the larval and juvenile fishes in a cement pond in a scatophagus argus room, which reduces the fry cultivating cost and improves the growth efficiency and the cultivating survival rate of the larval and juvenile fishes.
The invention provides a method for breeding larval and juvenile pseudosciaena parva in a cement pond in a pseudosciaena parva room, which comprises the following steps:
(1) seedling distribution: the fry for initial hatching is distributed in indoor cement pond with water level of 1/4, distribution density of 7500-10000 tails/m31.2-1.4 air stone/m2The dissolved oxygen is kept above 6 mg/L;
(2) controlling water temperature: when the fry are 1-20 days old, the water temperature is controlled at 29 plus or minus 1 ℃; after 21-30 days old, the water temperature is maintained at 26 +/-1 ℃;
(3) salinity regulation and control: the water for cultivating the seedlings is prepared by mixing concentrated seawater, local natural seawater and local river water. The salinity of the fry is 25 when the fry is 1-20 days old; after 20 days of age, starting to carry out salt reduction cultivation, carrying out salt reduction for 1 time every other day, carrying out salt reduction treatment for 2 hours each time, wherein the salinity reduction rate is from-1.5/h to-2/h until the salinity is 5;
(4) illumination: the illumination intensity is 2000-3000 lx;
(5) sewage suction: when the accumulated temperature is 203-;
(8) water changing: supplementing 1/4 chlorella water with the same temperature and salt every day after seedling distribution, and reaching full water level after 3 days with transparency of 25-35 cm; changing water 1/2 on the sewage suction day, changing water 1/3-1/2 every other day, scrubbing 1/3-1/2 parts of the upper opening of the pond wall by potassium permanganate solution when changing water, and gradually reducing the mesh number of water changing frames along with the increase of the day age of the fry;
(9) turning over a vat to cultivate: the fry can be turned over for more than 15 days, and the specific time is determined according to the ingestion, death condition, residual bait of the fry and the occurrence of enemy organism hydranth or jellyfish in the culture pond; when the jar is turned over, the jar is firstly put into a 60-mesh water changing frame for pumping water, and when the water level is reduced to 35cm, 6 meshes of water are used0-mesh silk net is pulled, the lower net is 1-2cm away from the bottom of the pool, the pulling speed is 4-6cm/s, and after the net is pulled, the fry with water is transferred to a pre-prepared pool with the same temperature and the same salt; when the hydroid or the jellyfish are found in the culture pond, the number of the hydroid or the jellyfish is 2-3/m2Firstly, spraying formaldehyde diluted solution in the whole pool, and turning over the tank after killing insects and absorbing dirt;
(8) feeding baits:
opening the hatch when the fry is hatched for 3-4 days;
3-6 days old, sieving the rotifer by a 100-mesh bolting silk, feeding for six times a day, and maintaining the density of the fry rearing pond to be 4-6/mL; meanwhile, the steamed egg yolk is kneaded by a 100-mesh bolting silk and fed in an auxiliary way, and the feeding amount is 0.8-1g/m each time3Feeding twice a day, wherein the feeding time in the morning and afternoon is respectively before the feeding of the rotifers;
feeding rotifers sieved by a 80-mesh silk net for 7-10 days, and feeding the rotifers three times respectively in the morning and afternoon, wherein the density is 3-5/mL;
feeding the fairy shrimp nauplii after being sieved by a 80-mesh silk net at the age of 11-20 days, wherein the fairy shrimp nauplii are fed once in the morning and at the noon, and the density is 1-2/mL; the rotifer is screened by a 60-mesh silk screen and then fed, and the rotifer is fed twice in the morning and afternoon, wherein the density is 3-5/mL;
feeding live baits of the fairy shrimp, which are sieved by a 60-mesh silk net, for 21-29 days old, and feeding once in the morning and at noon respectively, wherein the density is 2-3 per mL; feeding copepods and cladocerans sieved by a 40-60-mesh silk screen for 4 times/d twice in the morning and afternoon, wherein the density is 3-5 per mL;
after 30 days of age, the eel is kneaded into long strips and hung in water to attract fry clusters to eat.
Preferably, in the method for cultivating the larval fish in the cement pond in the scatophagus argus room, in the step (1), the area of the cement pond is 16-20m2。
Preferably, in the method for cultivating the larval and young pseudosciaena parva in the indoor cement pond, in the step (3), the Baume degree of the concentrated seawater is 11-12, the salinity of local natural seawater is 7-10, and the salinity of local river water is 0.5-2.
Preferably, in the method for cultivating the young pseudosciaena parva in the cement pond, the initial mesh number of the dirt suction frame in the step (5) is 80 meshes, the dirt suction frame is changed to 60 meshes when the fry is 8-20 days old, and the dirt suction frame is changed to 40 meshes after 20 days old.
Preferably, in the method for cultivating the young pseudosciaena parva in the cement pond in the room, in the step (6), when water is changed, a potassium permanganate solution with the concentration of 25ppm is adopted to scrub the position 1/3-1/2 on the upper opening of the pond wall; the water changing frame before 10 days old is 80 meshes, the water changing frame after 10-25 days old is 60 meshes, and the water changing frame after 25 days old is 40 meshes.
Preferably, in the method for cultivating the larval fish in the indoor cement pond for the scatophagus argus, the cylinder turning time in the step (7) is as follows: when the fry is not good in ingestion, the number of dead fry is doubled or the number of fairy shrimp nauplii in the residual bait is 0.1-0.2 per mL, the fry needs to be turned over.
When the hydroid or the jellyfish are found in the culture pond, the number of the hydroid or the jellyfish is 2-3/m2Immediately diluting with 25-30ppm formaldehyde solution for 20 times, sprinkling, adding air, soaking for 1.5-2 hr, stopping air, standing for 7-9min, sucking out most hydranth or jellyfish, and turning over.
Preferably, in the method for cultivating the larval fish in the cement pond in the scatophagus argus room, in the step (8), the feeding time of the rotifer after 3-6 days old and 100-mesh bolting silk is 9:00, 10:00, 11:00 in the morning and 14:00, 15:00, 16:00 in the afternoon; the egg yolk feeding time is 7:30 in the morning and 13:30 in the afternoon. The feeding time of the rotifers after 7-10 days old and sieved by a 80-mesh silk net is 9:00, 10:00 and 11:00 in the morning and 14:00, 15:00 and 16:00 in the afternoon. Feeding fairy shrimp nauplii which are 11-20 days old and sieved by a 80-mesh silk screen at 7:30 a.m. and 13:30 a.m.; the feeding time of the rotifers after the 60-mesh silk screen is sieved is 9:30 and 11:00 in the morning and 14:30 and 16:00 in the afternoon. Feeding live foeniculus formosanus baits which are 21-29 days old and sieved by a 60-mesh silk net at 7:30 a.m. and 13:30 a.m.; feeding copepods and cladocerans sieved by a 40-60-mesh silk screen at the feeding time of 9:30 and 11:00 in the morning and 14:30 and 16:00 in the afternoon. After feeding is started at 30 days old, the eel is kneaded into long strips, adhered to bamboo sticks with the length of 8-10cm, hung in water, and attracted to fry clusters to feed.
Action and Effect of the invention
The invention solves the blank of the indoor large-scale larval and juvenile fish cultivation technology of the scatophagus argus, and has the following outstanding characteristics: (1) the method solves the problem of the cultivation of the pseudosciaena crocea larvae, provides a pseudosciaena crocea indoor cement pond larvae cultivation technology, and fills the blank of the field of artificial cultivation of pseudosciaena crocea larvae; (2) establishing a bait sequence and a feeding method for larval and juvenile scatophagus argus, and solving the technical problem of starter opening of scatophagus argus fries; (3) the water environment technical parameters for the larval and juvenile fish cultivation of the scatophagus argus are determined, and the temperature-control and salt-regulating technology is adopted, so that the growth efficiency and the cultivation survival rate of the larval and juvenile fish are improved.
Detailed Description
The present invention will be described in detail with reference to examples. The following examples should not be construed as limiting the scope of the invention.
The method for breeding the larval fish in the indoor cement pond of the scatophagus argus in the embodiment comprises the following steps:
(1) seedling distribution: the newly hatched larva adopts indoor cement pond for laying fry, the area of the cement pond is 16-20m2The seedling distribution water level is 1/4 of full pool, the seedling distribution density is 7500-10000 tails/m31.2-1.4 air stone/m2The dissolved oxygen is kept above 6 mg/L.
(2) Controlling water temperature: when the fry are 1-20 days old, the water temperature is controlled at 29 plus or minus 1 ℃; after 21-30 days of age, the water temperature is maintained at 26 +/-1 ℃.
(3) Salinity regulation and control: the water for seedling cultivation is prepared by mixing concentrated seawater (Baume degree is 11-12), local natural seawater (salinity is 7-10) and local river water (salinity is 0.5-2). The salinity of the fry is 25 when the fry is 1-20 days old; and (3) beginning salt reduction cultivation after 20 days of age, reducing salt for 1 time every other day, and reducing the salinity at a rate of-1.5/h to-2/h for 2h each time until the salinity is 5.
(4) Illumination: the illumination intensity is 2000-3000 lx.
(5) Sewage suction: when the accumulated temperature is 203-. Removing air stone before dirt suction, standing the water in the culture pond for 7-9min, and sucking dirt on the bottom of the culture pond by a siphon method, wherein the dirt sucking frame is 80 meshes, the dirt sucking frame is changed into 60 meshes when the fry is 8-20 days old, and the dirt sucking frame is changed into 40 meshes after the fry is 20 days old.
(6) Water changing: 1/4 of chlorella water with the same temperature and salt is supplemented every day after seedling distribution, and the water level is full after 3 days, and the transparency is 25-35 cm. Changing water 1/2 on the soil pick-up day, changing water 1/3-1/2 every other day, and scrubbing 1/3-1/2 parts of the upper opening of the pool wall with 25ppm potassium permanganate solution when changing water. The water changing frame before 10 days old is 80 meshes, the water changing frame after 10-25 days old is 60 meshes, and the water changing frame after 25 days old is 40 meshes.
(7) Turning over a vat to cultivate: the fry can be turned over for more than 15 days, and the specific time can be determined according to the ingestion, death condition, residual bait of the fry and the occurrence of enemy organism hydranth or jellyfish in the culture pond. When the feeding of the fry is not good, the number of dead fry is doubled or the number of fairy shrimp nauplii in the residual bait is 0.1-0.2 per mL, the fry needs to be turned over; when the hydroids or the jellyfishes are found in the breeding pond to reach 2-3/m2Immediately diluting 20 times with 25-30ppm formaldehyde solution (with concentration of 37.0-40.0%), sprinkling into the whole pond, sprinkling formaldehyde, increasing aeration amount, soaking for 1.5-2 hr, stopping aeration, standing for 7-9min, sucking most of hydranth or jellyfish out, placing into a 60-mesh water changing frame with oolong pipe, pumping water, lowering water level to about 35cm, pulling with 60-mesh silk net at speed of 4-6cm/s, and transferring the fry with water to a pre-prepared water pond with same temperature and salt with white porcelain basin.
(8) Feeding baits:
the hatch is opened when the fry is hatched for 4 days.
3-6 days old, sieving the rotifer by a 100-mesh bolting silk screen, feeding for 9:00, 10:00 and 11:00 in the morning and 14:00, 15:00 and 16:00 in the afternoon, and maintaining the density of the fry rearing pond at 4-6/mL; meanwhile, the steamed egg yolk is kneaded by a 100-mesh bolting silk and fed in an auxiliary way, and the feeding amount is 0.8-1g/m each time3And feeding more offspring seed colony areas, wherein the feeding time is 7:30 in the morning and 13:30 in the afternoon.
Feeding rotifers after being sieved by a 80-mesh silk net for 6 times/d at the age of 7-10 days, wherein the feeding time is 9:00, 10:00 and 11:00 in the morning and 14:00, 15:00 and 16:00 in the afternoon, and the density is 3-5 rotifers/mL;
feeding the fairy shrimp nauplii after being sieved by a 80-mesh silk net for 2 times/d at the age of 11-20 days, wherein the feeding time is 7:30 in the morning and 13:30 in the afternoon, and the density is 1-2/mL; sieving by a 60-mesh silk net, feeding for 4 times/d, wherein the feeding time is 9:30 and 11:00 in the morning and 14:30 and 16:00 in the afternoon, and the density is 3-5 per mL;
feeding live baits of the fairy shrimp sieved by a 60-mesh silk net for 2 times/d at 21-29 days, wherein the feeding time is 7:30 in the morning and 13:30 in the afternoon, and the density is 2-3 per mL; sieving copepods and cladocerans with a 40-60-mesh silk screen for 4 times/d, feeding at 9:30 am, 11:00 am and 14:30 pm and 16:00 pm, and feeding at a density of 3-5 per mL;
when the fries are 30 days old, the fries begin to eat, the eel is kneaded into long strips, the long strips are adhered to bamboo sticks with the length of 8-10cm, the bamboo sticks are hung in water, and the fries can be gathered to eat.
Specific application examples are as follows:
by the method, breeding of the larval and juvenile scatophagus argus is carried out in a workshop No. 3 of scientific research base of aquatic product research institute in Shanghai city from 6 months 6 days to 4 months 6 months 2018, 18 ten thousand of newly hatched larval scatophagus argus are selected, and after 15 days of breeding, 11.5 thousand of early larval and juvenile scatophagus argus with the total length of 0.6cm are obtained, and the survival rate is 63.9%; and continuously breeding the fry to obtain 8.5 thousands of fries of 30 days old with the total length of 1.3cm and the body color conversion period, and the survival rate is 73.9 percent.
Culturing larval and juvenile scatophagus argus in workshop No. 4 of Shanghai scientific research base in aquatic product research institute in 7/19/2018/8/10/8/4, selecting 16-thousand-fish newly-hatched larval fish, performing experimental sampling for 4 times in 15 days of culturing period, sampling 2.5-thousand fish for each time, sampling 10-thousand fish fries in total, and finally obtaining 4.3-thousand fish fries of early juvenile fish with the total length of 0.5cm, wherein the experimental sampling number is about 6.4-thousand fish after the survival rate of the larval and juvenile fish culturing in 2017 years is reduced, the total number of the early juvenile fish is about 10.7-thousand fish, and the survival rate is about 66.9%; and (5) continuously breeding the fry to finally obtain 3.3 thousands of fries of 23 days old with the total length of 1.2cm and the body color conversion period, and the survival rate is 76.7 percent.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are given by way of illustration of the principles of the present invention, and that various changes and modifications may be made without departing from the spirit and scope of the invention as defined by the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (7)
1. A method for breeding larval and young pseudosciaena crocea in a cement pond in a pseudosciaena crocea room is characterized by comprising the following steps:
(1) seedling distribution: the fry for initial hatching is distributed in indoor cement pond with water level of 1/4, distribution density of 7500-10000 tails/m31.2-1.4 air stone/m2The dissolved oxygen is kept above 6 mg/L;
(2) controlling water temperature: when the fry are 1-20 days old, the water temperature is controlled at 29 plus or minus 1 ℃; after 21-30 days old, the water temperature is maintained at 26 +/-1 ℃;
(3) salinity regulation and control: the water for fry culture is prepared from concentrated seawater, local natural seawater and local river water, and the salinity of the fry is 25 when the fry is 1-20 days old; beginning salt reduction cultivation after 20 days of age, reducing salt for 1 time every other day, and reducing salt for 2 hours each time, wherein the salinity reduction rate is from-1.5/h to-2/h until the salinity is 5;
(4) illumination: the illumination intensity is 2000-3000 lx;
(5) sewage suction: when the accumulated temperature is 203-;
(6) water changing: supplementing 1/4 chlorella water with the same temperature and salt every day after seedling distribution, and reaching full water level after 3 days with transparency of 25-35 cm; changing water 1/2 on the sewage suction day, changing water 1/3-1/2 every other day, scrubbing 1/3-1/2 parts of the upper opening of the pool wall by potassium permanganate solution when changing water, and gradually reducing the number of water changing frames along with the increase of the day age of the fry;
(7) turning over a vat to cultivate: the fry can be turned over for more than 15 days, and the specific time is determined according to the ingestion, death condition, residual bait of the fry and the occurrence of enemy organism hydranth or jellyfish in the culture pond; when the tank is turned over, the water is pumped in a 60-mesh water changing frame, when the water level is reduced to 35cm, a 60-mesh silk net is used for drawing the net, the foot line is 1-2cm away from the bottom of the tank, the net drawing speed is 4-6cm/s, and after the net is drawn, the fry with water is transferred to a pre-prepared fryIn a pool with the same temperature and the same salt; when the hydroid or the jellyfish are found in the culture pond, the number of the hydroid or the jellyfish is 2-3/m2Firstly, spraying formaldehyde diluted solution in the whole pool, killing insects and absorbing dirt, and turning over the tank;
(8) feeding baits:
opening the hatch when the fry is hatched for 3-4 days;
3-6 days old, sieving the rotifer by a 100-mesh bolting silk, feeding for six times a day, and maintaining the density of the fry rearing pond to be 4-6/mL; meanwhile, the boiled egg yolk is kneaded by a 100-mesh bolting silk and fed with the aid, and the feeding amount is 0.8-1g/m each time3Feeding twice a day, wherein the feeding time in the morning and afternoon is respectively before the feeding of the rotifers;
feeding rotifers which are 7-10 days old and sieved by a 80-mesh silk net for three times respectively in the morning and afternoon, wherein the density is 3-5/mL;
feeding the fairy shrimp nauplii after being sieved by a 80-mesh silk net at the age of 11-20 days, wherein the fairy shrimp nauplii are fed once in the morning and at the noon, and the density is 1-2/mL; the rotifer is screened by a 60-mesh silk screen and then fed, and the rotifer is fed twice in the morning and afternoon, wherein the density is 3-5/mL;
feeding live baits of the fairy shrimp, which are sieved by a 60-mesh silk net, for 21-29 days old, and feeding once in the morning and at noon respectively, wherein the density is 2-3 per mL; feeding copepods and cladocerans sieved by a 40-60-mesh silk screen for 4 times/d twice in the morning and afternoon, wherein the density is 3-5 per mL;
after 30 days of age, the eel is kneaded into long strips and hung in water to attract fry clusters to eat.
2. The method for rearing the larvae of pseudosciaena parva in a cement pond according to claim 1, wherein:
wherein in the step (1), the area of the cement pool is 16-20m2。
3. The method for rearing the larvae of pseudosciaena parva in a cement pond according to claim 2, wherein:
in the step (3), the baume degree of the concentrated seawater is 11-12, the salinity of local natural seawater is 7-10, and the salinity of local river water is 0.5-2.
4. The method for rearing young scatophagus argus in an indoor cement pond according to claim 2, wherein:
wherein in the step (5), the initial mesh number of the sewage suction frame is 80 meshes, the sewage suction frame is changed to 60 meshes when the fry is 8-20 days old, and the sewage suction frame is changed to 40 meshes after 20 days old.
5. The method for rearing the larvae of pseudosciaena parva in a cement pond according to claim 2, wherein:
wherein, in the step (6), when water is changed, a potassium permanganate solution with the concentration of 25ppm is adopted to scrub 1/3-1/2 parts of the upper opening of the pool wall; the water changing frame before 10 days old is 80 meshes, the water changing frame after 10-25 days old is 60 meshes, and the water changing frame after 25 days old is 40 meshes.
6. The method for rearing the larvae of pseudosciaena parva in a cement pond according to claim 5, wherein:
in the step (7), the cylinder overturning time is as follows: when the feeding of the fry is not good, the number of dead fry is doubled or the number of fairy shrimp nauplii in the residual bait is 0.1-0.2 per mL, the fry needs to be turned over;
when the hydroid or the jellyfish are found in the culture pond, the number of the hydroid or the jellyfish is 2-3/m2Immediately diluting with 25-30ppm formaldehyde solution for 20 times, sprinkling, adding air, soaking for 1.5-2 hr, stopping air, standing for 7-9min, sucking out most hydranth or jellyfish, and turning over.
7. The method for rearing the larvae of pseudosciaena parva in a cement pond according to claim 1, wherein:
wherein, in the step (8),
feeding rotifers of 3-6 days old after sieving with 100-mesh bolting silk at 9:00, 10:00 and 11:00 in the morning and 14:00, 15:00 and 16:00 in the afternoon; the feeding time of the egg yolk is 7:30 in the morning and 13:30 in the afternoon;
feeding rotifers of 7-10 days old after sieving with 80-mesh silk net at 9:00 am, 10:00 am and 11:00 pm and at 14:00 pm, 15:00 and 16:00 pm;
feeding the fairy shrimp nauplii which are 11-20 days old and sieved by a 80-mesh silk screen at 7:30 a.m. and 13:30 a.m.; feeding rotifers sieved by a 60-mesh silk net at 9:30 and 11:00 in the morning and 14:30 and 16:00 in the afternoon;
feeding live foeniculus formosanus baits which are 21-29 days old and sieved by a 60-mesh silk net at 7:30 a.m. and 13:30 a.m.; feeding copepods and cladocerans sieved by a 40-60-mesh silk screen at feeding time of 9:30 in the morning and 11:00 in the afternoon and at feeding time of 14:30 in the afternoon and at feeding time of 16:00 in the afternoon;
after feeding is started at 30 days old, the eel is kneaded into long strips, adhered to bamboo sticks with the length of 8-10cm, hung in water, and attracted to fish fry clusters to feed.
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| CN100539833C (en) * | 2007-07-11 | 2009-09-16 | 中国水产科学研究院珠江水产研究所 | Scale breeding method of jade perch |
| CN102696510B (en) * | 2012-05-16 | 2014-10-29 | 中国水产科学研究院东海水产研究所 | Method for culturing pampus argenteus larval and young fishes with running water |
| CN103636546B (en) * | 2013-12-18 | 2018-06-05 | 上海市水产研究所 | Method for cultivating scatophagus argus in indoor cement pool |
| CN108323458B (en) * | 2018-05-09 | 2020-04-17 | 上海市水产研究所 | Indoor high-density breeding method for current-year fingerling of scatophagus argus |
| CN108967278A (en) * | 2018-08-10 | 2018-12-11 | 深圳大学 | A kind of artificial fecundation method of Scatophagus argus (Linnaeus) |
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