CN102919186A - Artificial breeding method for sillago sihama - Google Patents

Artificial breeding method for sillago sihama Download PDF

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Publication number
CN102919186A
CN102919186A CN2012105152069A CN201210515206A CN102919186A CN 102919186 A CN102919186 A CN 102919186A CN 2012105152069 A CN2012105152069 A CN 2012105152069A CN 201210515206 A CN201210515206 A CN 201210515206A CN 102919186 A CN102919186 A CN 102919186A
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day
something
water
bait
feed
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CN102919186B (en
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杜涛
黄洋
黄海立
窦黑铁
黄建盛
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Zhuhai De Yang aquaculture Co., Ltd.
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Guangdong Ocean University
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A40/00Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
    • Y02A40/80Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management
    • Y02A40/81Aquaculture, e.g. of fish

Abstract

The invention relates to an artificial breeding method for sillago sihama, belonging to the technical field of artificial breeding of fishes. The method taking more than 100g of adult sillago sihama as parent fishes comprises the following steps of: carrying out antenatal nutrient enrichment and parent fish environmental control on the parent fish to promote the parent fishes to naturally lay eggs so as to obtain germ cells, carrying out artificially-regulated incubation and artificially-regulated larvae and young fish cultivation on the obtained germ cells, and carrying out nutrient enrichment and feeding on series of bait in the period of opening and seedling cultivating. According to the method, the enriched cultivation of the wild sillago sihama parent fish is solved, the nature spawning of the wild sillago sihama parent fish is promoted, and the artificial breeding technology of the germ cell incubation, the seedlings and the parent fish is artificially regulated, so that the condition can be created for the large-scale cultivation of the sillago sihama; and the new variety can be increased for the artificial culture and proliferation of marine fishes, and the artificial breeding method plays a very important role in the natural resource recovery and industrial development of sillago sihama.

Description

The artificial breeding method of a kind of Duo Lin Xi
Technical field
The present invention relates to a kind of artificial breeding method of seawater fish, be specifically related to the artificial breeding method of a kind of Duo Lin Xi, belong to the artificial breeding technology field of fish.
Background technology
Duo Lin Xi Sillago sihama Forsk á l is under the jurisdiction of Perciformes Perciformes, Anabantoidei Percoidei, the perch Superfamily Percoidea, Xi Sillaginidae, Xi of section belongs to Sillago.In Australia, India, Indonesia, Philippine and Japan distribution is arranged, also there is distribution in the coastal waters at China's Bohai and Yellow Seas, the East Sea and the South Sea, and body length can reach 300mm.Duo Lin Xi is commonly called as sand borer, ship fourth fish, the wheat head, the fishing season of fishing for take spring, two seasons of summer are best fishing period, it is the important economic fish of China coast, once in the China coastal seas fishing operation, occupied considerable position, but because overfishing in recent years, individuality becomes younger, colony's littleization that become, and output reduces year by year.
Duo Lin Xi finished product fish specification is little, and aquaculture management is comparatively easy, and the cultivation survival rate is high and breeding way is various, and better economic benefit has very wide cultivation prospect.Prawn is as the principal item of pond mariculture, exist a large amount of benthons and plankton Duo Lin Xi less demanding to the soft or hard degree of feed, color, taste etc. in the breeding process, the zooplanktons such as the dead shrimp in the edible prawn pond, residual bait, copepoda and cladocera; many squamas Xi and prawn are raised together with and be conducive to the pond water quality regulation and control, reduce the prawn incidence of disease, more efficiently utilize the space, pond, improve unit output and benefit, Duo Lin Xi and prawn Polyculture merit our study and inquire into very much.Up to now, there are no the report about Duo Lin Xi parent fish rearing and artificial breeding related fields.
Summary of the invention
The object of the present invention is to provide the artificial breeding method of Duo Lin Xi, solve wild Duo Lin Xi parent population reinforced cultivating, impel its natural spawning, incubating oosperm and artificial breeding technique young, postlarva, thus create conditions for the large-scale farming of Duo Lin Xi.
In order to address the above problem, the technical solution used in the present invention is as follows:
The artificial breeding method of a kind of Duo Lin Xi comprises the steps:
(1) selects the above Duo Lin Xi adult fish of 100g as parent population, it is carried out prenatal nutrition by force and the parent population environment conditioning, impel its natural spawning, obtain fertilized egg;
Describedly Duo Lin Xi parent population is carried out fortification refer to: take chilled squid meat, oyster meat, clam worm as bait, add the V that accounts for bait weight 4~5 ‰ CWith 2 ‰ V E, day throws something and feeds 2 times; Described parent population environment conditioning refers to: intensity of illumination 50~700Lux, and light application time is the natural lighting time, 26~32 ℃ of water temperatures, salinity 26~33, pH value 8.0~8.5, day 2 full doses of quantity of exchanged water;
(2) artificial regulatory incubating oosperm;
Described artificial regulatory incubating oosperm refers to: 28~32 ℃ of hatching water temperatures, and salinity 28~31, pH value 8.0~8.5, more than the DO5mg/L, total ammonia nitrogen [NH 4 +]≤0.1mg/L in time removes heavy ovum between the incubation period, rate of water exchange is 200%~300%;
(3) artificial regulatory son, postlarva are cultivated;
Described artificial regulatory is young, postlarva is cultivated and refers to: 27~33 ℃ of water temperatures, salinity 26~33, pH value 8.0~8.5, intensity of illumination 600~1000Lux; Aeration quantity is by 30L/m per hour 3Aeration quantity increase to gradually 60L/m 3, quantity of exchanged water is increased to 200% gradually by the quantity of exchanged water of initial every day 10%; 3d adds chlorella to cultivating in the water body after the prelarva hatching, makes concentration reach 3~5 * 10 5Individual/ml, until till the wheel animalcule that stops to throw something and feed; The 10th day beginning every day or every other day morning soil pick-up once, absorb dirt at the bottom of the pond, residual bait, behind the manufactured feed of throwing something and feeding every day sooner or later each soil pick-up once, to keep growing seedlings water cleaning;
(4) opening and seedling fostering phase series bait fortification and throw something and feed;
The fortification of described opening and seedling fostering phase series bait and throwing something and feeding refers to: the 2nd day initial feeding after prelarva hatches, 3~5/mL of protozoa and 2~3/mL to 6 of the S type wheel animalcule age in days end of throwing something and feeding; 5~15 ages in days throw something and feed 2~3/mL of medium-sized wheel animalcule and 0.2~0.5/mL of copepoda nauplius; 10~20 ages in days, 0.5~1/mL of artemia nauplii that throws something and feeds; 15~30 ages in days, 0.2~0.5/mL of copepoda adult that throws something and feeds; 25 ages in days begin the artifical compound feed of throwing something and feeding; Biological feed is thrown something and fed 2 times every day, and manufactured feed is thrown something and fed 4~6 times every day, and wheel animalcule adds emulsification cod-liver oil with the high concentration chlorella and strengthens 8h, and artemia nauplii is then strengthened 8h with emulsification cod-liver oil separately.
The present invention is by solving wild Duo Lin Xi parent population reinforced cultivating, impel its natural spawning, artificial regulatory incubating oosperm and artificial breeding technique young, postlarva, thus create conditions for the large-scale farming of Duo Lin Xi.The present invention is that the seawater fish artificial increasing cultivation has increased new varieties, and extremely important effect has been played in the recovery of Duo Lin Xi natural resources, the industrialized development of Duo Lin Xi.
Embodiment
Below by example the present invention is described in further details, these examples only are used for illustrating the present invention, do not limit the scope of the invention.
Embodiment 1
One, method
1, parent population catches and tames
3~April in 2012 fished for from the Naozhou island marine site.Should adopt Fixed nets device when fishing for, in time collect, in time transportation is avoided injury.Enter domestication pool after transporting indoor disinfection back, take simulated ecological and living bait abductive approach (noting the conditions such as peace and quiet, light, the depth of water, water temperature, flowing water, suitable living bait) to tame, the living bait until can actively ingest, body colour is normal, behind the wound healing, side's meaning domestication is finished.To May select 98 tails healthy, be that individuality more than the 100g is as parent population without the body weight of hindering, body surface is complete, vigor is good;
2, tank interior parent population reinforced cultivating
Bait is take new scallop meat, clam worm, shrimp etc. as main, in bait, add simultaneously hardening agent (composition is multivitamin, fish oil etc.), impel female, male parent population further ripe, daily ration of feeding is 5%~8% of fish body weight, and the bait throwing in time is in about 8: 00 mornings and about afternoon 17:00; 28~31 ℃ of water temperatures of control, salinity 26~31, pH value 8.2~8.5, DO value 5.0~7.0mg/L, day quantity of exchanged water 100%~200%, the low light level, inflation;
3, adopt ovum, hatching
The naturally fertilized egg that originates in the pond is collected with 80 mesh sieve tulle case spilling waters.The fertilized egg of collecting is placed on inflation hatching in the 0.5t cone end black glass steel water tank through repeatedly washing ovum, remove the bad ovum that sinks to the bottom with impurity, 28~32 ℃ of hatching water temperatures, and salinity 28~31, pH value 8.2~8.5, more than the DO5mg/L, total ammonia nitrogen [NH 4 +]≤0.1 mg/L in time removes heavy ovum, embryo's incubation of membrane behind 14~16h between the incubation period.Prelarva is stopped the supple of gas or steam after hatching, and opens bottom valve and gets rid of the dirt that falls to the cone bottom and thoroughly change water, then prelarva is with water to move in the nursery pond and is cultivated;
4, indoor culture seedling
(1) tolerance and light regulation and control: every 2m in the nursery pond 2The oxygenation of 1 gas stone of cloth, each developmental stage of aeration quantity is different, and faint inflation alevin stage later on along with fry grows up, increases tolerance gradually.Direct sunlight is avoided in the nursery pond top, keeps sufficient diffused light, intensity of illumination 600~1000Lux;
(2) regulating and controlling water quality: 27~31 ℃ of water temperatures, salinity 24~29, dissolved oxygen 5.2~7.4 mg/L.Add first 1m deep-sea water when nursery pond begins, fill it up with after adding the dark fresh seawater 5d of 10cm rear every day, begin later on to change water, once a day, quantity of exchanged water increases to 2/5 gradually from 1/10, to postlarva phase quantity of exchanged water be 4/5.Throwing something and feeding, quantity of exchanged water reaches 200% behind the manufactured feed, changes at twice water every day.Dirt at the bottom of the pond, residual bait are absorbed in beginning in the 10th day morning, the young postlarva phase as the case may be every other day or a couple of days soil pick-up once.After young stage is thrown something and fed manufactured feed every day the soil pick-up secondary; In addition, 3d adds chlorella to cultivating in the water body after the prelarva hatching, makes concentration reach 3~5 * 10 5Individual/ml, until till the wheel animalcule that stops to throw something and feed;
(3) selection of bait series: under the condition of about 29 ℃ of water temperatures, the 2nd day initial feeding after prelarva hatches.According to the requirement of young postlarva different developmental phases to food nutrition and palatability, adopt different food species to cooperate intersection to throw something and feed.Because bore is little during Duo Lin Xi prelarva opening, Burden-Swimming Ability of KM is poor, and we adopt the small-sized wheel animalcule that is fit to its bore and protozoa as its open-mouthed bait, throws something and feeds continuously to the hatching about the 6th day.Threw something and fed since the 5th day medium-sized wheel animalcule and copepoda nauplius to 15 age in days finishes, 10~20 ages in days artemia nauplii of throwing something and feeding, 15~30 ages in days copepoda adult of throwing something and feeding, and 25 ages in days begin the artifical compound feed of throwing something and feeding.Every day, biological feed was thrown something and fed 2 times, and manufactured feed is thrown something and fed 4~6 times.Wheel animalcule adds emulsification cod-liver oil with the high concentration chlorella strengthens more than the 8h, and artemia nauplii is then strengthened more than the 8h with emulsification cod-liver oil separately;
(4) bait feeding amount: the day feeding volume of various bait is looked son, young, the density of juvenile fish and the situation of ingesting and is taken the circumstances into consideration increase and decrease.Generally speaking, protozoa 3~5/mL of density in cultivating the pond; 2~3/mL of wheel animalcule; 0.5~1/mL of artemia nauplii; 0.2~0.5/mL of copepoda; Manufactured feed is thrown something and fed 4~6 times every day, and the size of its particle changes larger particle into gradually with the bore increase of fish;
Two, result
1, Gunther parent fish spawning and incubating oosperm
Parent population is from total egg laying amount 67 * 10 on 27-June 27 May 4Grain, average fertilization rate 74.3%, average incubation rate 81.8%;
2, young postlarva and juvenile fish are cultivated
June 19 collected 6.7 * 10 4The grain ovum, June 27 collected 8.1 * 10 4The grain ovum, two batches of prelarvas are gone through cultivation in 35 days, cultivate altogether the fry 2.8 * 10 of average length 3.5cm 4Tail, survival rate of seedling 24.5%.
Embodiment 2
One, method
1, parent population catches and tames
3~April in 2012 fished for from the Naozhou island marine site.Should adopt Fixed nets device when fishing for, in time collect, in time transportation is avoided injury.Enter domestication pool after transporting indoor disinfection back, take simulated ecological and living bait abductive approach (noting the conditions such as peace and quiet, light, the depth of water, water temperature, flowing water, suitable living bait) to tame, the living bait until can actively ingest, body colour is normal, behind the wound healing, side's meaning domestication is finished.To May select 98 tails healthy, be that individuality about 100g is as parent population without the body weight of hindering, body surface is complete, vigor is good;
2, tank interior parent population reinforced cultivating
Bait is take new scallop meat, clam worm, shrimp etc. as main, in bait, add simultaneously hardening agent (composition is multivitamin, fish oil etc.), impel female, male parent population further ripe, daily ration of feeding is 5%~8% of fish body weight, and the bait throwing in time is in about 8: 00 mornings and about afternoon 17:00; 28~31 ℃ of water temperatures of control, salinity 26~31, pH value 8.2~8.5, DO value 5.0~7.0mg/L, day quantity of exchanged water 100%~200%, the low light level, inflation;
3, adopt ovum, hatching
The naturally fertilized egg that originates in the pond is collected with 80 mesh sieve tulle case spilling waters.The fertilized egg of collecting is placed on inflation hatching in the 0.5t cone end black glass steel water tank through repeatedly washing ovum, remove the bad ovum that sinks to the bottom with impurity, 29~32 ℃ of hatching water temperatures, and salinity 27~31, pH value 8.2~8.5, more than the DO5mg/L, total ammonia nitrogen [NH 4 +]≤0.1 mg/L in time removes heavy ovum, embryo's incubation of membrane behind 14~16h between the incubation period.Prelarva is stopped the supple of gas or steam after hatching, and opens bottom valve and gets rid of the dirt that falls to the cone bottom and thoroughly change water, then prelarva is with water to move in the nursery pond and is cultivated;
4, indoor culture seedling
(1) tolerance and light regulation and control: every 2m in the nursery pond 2The oxygenation of 1 gas stone of cloth, each developmental stage of aeration quantity is different, and faint inflation alevin stage later on along with fry grows up, increases tolerance gradually.Direct sunlight is avoided in the nursery pond top, keeps sufficient diffused light, intensity of illumination 600~1000Lux;
(2) regulating and controlling water quality: 27.5~31.7 ℃ of water temperatures, salinity 23~28, dissolved oxygen 5.0~7.5 mg/L.Add first 1m deep-sea water when nursery pond begins, fill it up with after adding the dark fresh seawater 5d of 10cm rear every day, begin later on to change water, once a day, quantity of exchanged water increases to 2/5 gradually from 1/10, to postlarva phase quantity of exchanged water be 4/5.Throwing something and feeding, quantity of exchanged water reaches 200% behind the manufactured feed, changes at twice water every day.Dirt at the bottom of the pond, residual bait are absorbed in beginning in the 10th day morning, the young postlarva phase as the case may be every other day or a couple of days soil pick-up once.After young stage is thrown something and fed manufactured feed every day the soil pick-up secondary; In addition, 3d adds chlorella to cultivating in the water body after the prelarva hatching, makes concentration reach 3~5 * 10 5Individual/ml, until till the wheel animalcule that stops to throw something and feed;
(3) selection of bait series: under the condition of about 29 ℃ of water temperatures, the 2nd day initial feeding after prelarva hatches.According to the requirement of young postlarva different developmental phases to food nutrition and palatability, adopt different food species to cooperate intersection to throw something and feed.Because bore is little during Duo Lin Xi prelarva opening, Burden-Swimming Ability of KM is poor, and we adopt the small-sized wheel animalcule that is fit to its bore and protozoa as its open-mouthed bait, throws something and feeds continuously to the hatching about the 6th day.Threw something and fed since the 5th day medium-sized wheel animalcule and copepoda nauplius to 15 age in days finishes, 10~20 ages in days artemia nauplii of throwing something and feeding, 15~30 ages in days copepoda adult of throwing something and feeding, and 25 ages in days begin the artifical compound feed of throwing something and feeding.Every day, biological feed was thrown something and fed 2 times, and manufactured feed is thrown something and fed 4~6 times.Wheel animalcule adds emulsification cod-liver oil with the high concentration chlorella strengthens more than the 8h, and artemia nauplii is then strengthened more than the 8h with emulsification cod-liver oil separately;
(4) bait feeding amount: the day feeding volume of various bait is looked son, young, the density of juvenile fish and the situation of ingesting and is taken the circumstances into consideration increase and decrease.Generally speaking, protozoa 3~5/mL of density in cultivating the pond; 2~3/mL of wheel animalcule; 0.5~1/mL of artemia nauplii; 0.2~0.5/mL of copepoda; Manufactured feed is thrown something and fed 4~6 times every day, and the size of its particle changes larger particle into gradually with the bore increase of fish;
Two, result
1, Gunther parent fish spawning and incubating oosperm
Parent population egg laying amount 10.2 * 10 on June 30 4Grain, fertilization rate 89.5%, average incubation rate 97.2%;
2, young postlarva and juvenile fish are cultivated
This batch prelarva is gone through cultivation in 30 days, cultivates altogether the fry 2.3 * 10 of average length 3.0cm 4Tail, survival rate of seedling 25.8%.
Embodiment 3
One, method
1, parent population catches and tames
3~April in 2012 fished for from the Naozhou island marine site.Should adopt Fixed nets device when fishing for, in time collect, in time transportation is avoided injury.Enter domestication pool after transporting indoor disinfection back, take simulated ecological and living bait abductive approach (noting the conditions such as peace and quiet, light, the depth of water, water temperature, flowing water, suitable living bait) to tame, the living bait until can actively ingest, body colour is normal, behind the wound healing, side's meaning domestication is finished.To May select 98 tails healthy, be that individuality about 100g is as parent population without the body weight of hindering, body surface is complete, vigor is good;
2, tank interior parent population reinforced cultivating
Bait is take new scallop meat, clam worm, shrimp etc. as main, in bait, add simultaneously hardening agent (composition is multivitamin, fish oil etc.), impel female, male parent population further ripe, daily ration of feeding is 5%~8% of fish body weight, and the bait throwing in time is in about 8: 00 mornings and about afternoon 17:00; 28~31 ℃ of water temperatures of control, salinity 26~31, pH value 8.2~8.5, DO value 5.0~7.0mg/L, day quantity of exchanged water 100%~200%, the low light level, inflation;
3, adopt ovum, hatching
The naturally fertilized egg that originates in the pond is collected with 80 mesh sieve tulle case spilling waters.The fertilized egg of collecting is placed on inflation hatching in the 0.5t cone end black glass steel water tank through repeatedly washing ovum, remove the bad ovum that sinks to the bottom with impurity, 29~32 ℃ of hatching water temperatures, and salinity 27~31, pH value 8.2~8.5, more than the DO5mg/L, total ammonia nitrogen [NH 4 +]≤0.1 mg/L in time removes heavy ovum, embryo's incubation of membrane behind 14~16h between the incubation period.Prelarva is stopped the supple of gas or steam after hatching, and opens bottom valve and gets rid of the dirt that falls to the cone bottom and thoroughly change water, then prelarva is with water to move in the nursery pond and is cultivated;
4, indoor culture seedling
(1) tolerance and light regulation and control: every 2m in the nursery pond 2The oxygenation of 1 gas stone of cloth, each developmental stage of aeration quantity is different, and faint inflation alevin stage later on along with fry grows up, increases tolerance gradually.Direct sunlight is avoided in the nursery pond top, keeps sufficient diffused light, intensity of illumination 600~1000Lux;
(2) regulating and controlling water quality: 27.0~31.7 ℃ of water temperatures, salinity 23~32, dissolved oxygen 5.2~7.5 mg/L.Add first 1m deep-sea water when nursery pond begins, fill it up with after adding the dark fresh seawater 5d of 10cm rear every day, begin later on to change water, once a day, quantity of exchanged water increases to 2/5 gradually from 1/10, to postlarva phase quantity of exchanged water be 4/5.Throwing something and feeding, quantity of exchanged water reaches 200% behind the manufactured feed, changes at twice water every day.Dirt at the bottom of the pond, residual bait are absorbed in beginning in the 10th day morning, the young postlarva phase as the case may be every other day or a couple of days soil pick-up once.After young stage is thrown something and fed manufactured feed every day the soil pick-up secondary.In addition, 3d adds chlorella to cultivating in the water body after the prelarva hatching, makes concentration reach 3~5 * 10 5Individual/ml, until till the wheel animalcule that stops to throw something and feed;
(3) selection of bait series: under the condition of about 29 ℃ of water temperatures, the 2nd day initial feeding after prelarva hatches.According to the requirement of young postlarva different developmental phases to food nutrition and palatability, adopt different food species to cooperate intersection to throw something and feed.Because bore is little during Duo Lin Xi prelarva opening, Burden-Swimming Ability of KM is poor, and we adopt the small-sized wheel animalcule that is fit to its bore and protozoa as its open-mouthed bait, throws something and feeds continuously to the hatching about the 6th day.Threw something and fed since the 5th day medium-sized wheel animalcule and copepoda nauplius to 15 age in days finishes, 10~20 ages in days artemia nauplii of throwing something and feeding, 15~30 ages in days copepoda adult of throwing something and feeding, and 25 ages in days begin the artifical compound feed of throwing something and feeding.Every day, biological feed was thrown something and fed 2 times, and manufactured feed is thrown something and fed 4~6 times.Wheel animalcule adds emulsification cod-liver oil with the high concentration chlorella strengthens more than the 8h, and artemia nauplii is then strengthened more than the 8h with emulsification cod-liver oil separately;
(4) bait feeding amount: the day feeding volume of various bait is looked son, young, the density of juvenile fish and the situation of ingesting and is taken the circumstances into consideration increase and decrease.Generally speaking, protozoa 3~5/mL of density in cultivating the pond; 2~3/mL of wheel animalcule; 0.5~1/mL of artemia nauplii; 0.2~0.5/mL of copepoda; Manufactured feed is thrown something and fed 4~6 times every day, and the size of its particle changes larger particle into gradually with the bore increase of fish;
Two, result
1, Gunther parent fish spawning and incubating oosperm
Parent population total egg laying amount 6.2 * 10 on July 5 4Grain, average fertilization rate 82.8%, average incubation rate 83.2%;
2, young postlarva and juvenile fish are cultivated
This batch prelarva is gone through cultivation in 94 days, cultivates altogether the Duo Lin Xi 1.0 * 10 of total length 3.5 ~ 7.5cm 4Tail, survival rate 23.3%.

Claims (1)

1. the artificial breeding method of squama Xi more than a kind is characterized in that: comprise the steps:
(1) selects the above Duo Lin Xi adult fish of 100g as parent population, it is carried out prenatal nutrition strengthen and the parent population environment conditioning, impel its natural spawning, obtain fertilized egg;
Describedly Duo Lin Xi parent population is carried out fortification refer to: take chilled squid meat, oyster meat, clam worm as bait, add the V that accounts for bait weight 4~5 ‰ CWith 2 ‰ V E, day throws something and feeds 2 times; Described parent population environment conditioning refers to: intensity of illumination 50~700Lux, and light application time is the natural lighting time, 26~32 ℃ of water temperatures, salinity 26~33, pH value 8.0~8.5, day 2 full doses of quantity of exchanged water;
(2) artificial regulatory incubating oosperm;
Described artificial regulatory incubating oosperm refers to: 28~32 ℃ of hatching water temperatures, and salinity 28~31, pH value 8.0~8.5, more than the DO5mg/L, total ammonia nitrogen [NH 4 +]≤0.1mg/L in time removes heavy ovum between the incubation period, rate of water exchange is 200%~300%;
(3) artificial regulatory son, postlarva are cultivated;
Described artificial regulatory is young, postlarva is cultivated and refers to: 27~33 ℃ of water temperatures, salinity 26~33, pH value 8.0~8.5, intensity of illumination 600~1000Lux; Aeration quantity is by 30L/m per hour 3Aeration quantity increase to gradually 60L/m 3, quantity of exchanged water is increased to 200% gradually by the quantity of exchanged water of initial every day 10%; 3d adds chlorella to cultivating in the water body after the prelarva hatching, makes concentration reach 3~5 * 10 5Individual/ml, until till the wheel animalcule that stops to throw something and feed; The 10th day beginning every day or every other day morning soil pick-up once, absorb dirt at the bottom of the pond, residual bait, behind the manufactured feed of throwing something and feeding every day sooner or later each soil pick-up once, to keep growing seedlings water cleaning;
(4) opening and seedling fostering phase series bait fortification and throw something and feed;
The fortification of described opening and seedling fostering phase series bait and throwing something and feeding refers to: the 2nd day initial feeding after prelarva hatches, 3~5/mL of protozoa and 2~3/mL to 6 of the S type wheel animalcule age in days end of throwing something and feeding; 5~15 ages in days throw something and feed 2~3/mL of medium-sized wheel animalcule and 0.2~0.5/mL of copepoda nauplius; 10~20 ages in days, 0.5~1/mL of artemia nauplii that throws something and feeds; 15~30 ages in days, 0.2~0.5/mL of copepoda adult that throws something and feeds; 25 ages in days begin the artifical compound feed of throwing something and feeding; Biological feed is thrown something and fed 2 times every day, and manufactured feed is thrown something and fed 4~6 times every day, and wheel animalcule adds emulsification cod-liver oil with the high concentration chlorella and strengthens 8h, and artemia nauplii is then strengthened 8h with emulsification cod-liver oil separately.
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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104823898A (en) * 2015-06-09 2015-08-12 广东海洋大学 Sillago sihama fry mouth opening bait culturing, selecting and feeding method
CN104839070A (en) * 2015-06-09 2015-08-19 广东海洋大学 Method and facility for outdoor large-scale cultivation of Sillago sihama parent fishes
CN104839069A (en) * 2015-06-09 2015-08-19 广东海洋大学 Method for acquiring batched Sillago sihama parent fishes
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CN104823898A (en) * 2015-06-09 2015-08-12 广东海洋大学 Sillago sihama fry mouth opening bait culturing, selecting and feeding method
CN104839070A (en) * 2015-06-09 2015-08-19 广东海洋大学 Method and facility for outdoor large-scale cultivation of Sillago sihama parent fishes
CN104839069A (en) * 2015-06-09 2015-08-19 广东海洋大学 Method for acquiring batched Sillago sihama parent fishes
CN104872026A (en) * 2015-06-09 2015-09-02 广东海洋大学 Method of prawn and Sillago sihama polyculture in higher-place pond

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