CN103202257A - Total artificial batch breeding method of striped bass - Google Patents
Total artificial batch breeding method of striped bass Download PDFInfo
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- CN103202257A CN103202257A CN2013101602564A CN201310160256A CN103202257A CN 103202257 A CN103202257 A CN 103202257A CN 2013101602564 A CN2013101602564 A CN 2013101602564A CN 201310160256 A CN201310160256 A CN 201310160256A CN 103202257 A CN103202257 A CN 103202257A
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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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Abstract
The invention discloses a total artificial batch breeding method of striped bass. The method comprises the following steps of: after the parent fishes or the standby parent fishes are bred intensively to mature, performing artificial propagation by using an oxytocic, and then performing artificial incubation, fry breeding pool preparation, primary breeding and secondary breeding so that all the fries have the full length being more than 2.0 cm; and then, continuously throwing bait to the fry pool until the fishes grows big. The total artificial batch breeding method of striped bass improves fertility rate and hatchability, and also improves the fry breeding survival rate and increases the annual fry breeding quantity; in addition, the total artificial breeding effect is obviously improved and the annular fry breeding quantity reaches a large-scale breeding level.
Description
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Technical field
The present invention relates to Technique in Fishes raising technology field, particularly relate to grow seedlings the in batches method of striped perch of total man worker.
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Background technology
Characteristics such as the delicacy of striped bass matter is stung between no flesh, and is nutritious, and tool is temperature, eurysalinity extensively, and it is fast to grow are fit to intensive culture.Solve striped perch total man worker seedling growing process in batches, carry out striped perch scale breeding and produce and culture demonstration, for seed and the technical guarantee that a large amount of high-qualitys are provided cultured in the further popularization of striped perch, significant to improving the culturing economic benefit.
Provinces and cities such as China Guangdong, Fujian successively introduce the examination of striped perch and support, and have successively broken through artificial breeding technique, but fertilization rate and incubation rate are all lower; have only about 20%; survival rate of seedling is low, and year amount of growing seedlings generally is no more than 1,000,000 tails, does not reach the large-scale production level.
Summary of the invention
In order to overcome above shortcomings part in the prior art; the object of the present invention is to provide grow seedlings the in batches method of striped perch of a kind of total man worker; there are fertilization rate, incubation rate and the low problem of seed rearing survival rate to solve in the production of striped perch artificial breeding, the support of technology is provided for the artificial scale breeding of striped perch.
In order to reach above-mentioned purpose, the present invention adopts following concrete technical scheme: grow seedlings the in batches method of striped perch of total man worker comprises the steps:
1) parent fish rearing: select the Tu Chi of 3-5 mu, it is 200-300 tail/667 ㎡ that parent population or reserve parent fish are cultivated density, and male and female are than being 1:1-2; Parent population carries out reinforced cultivating, throws something and feeds to contain the self-control soft pellet diet of crude protein about 35%, guarantees balanced in nutrition; Hastened parturition preceding 30-60 days, the 2-3h that washes by water every day is to promote the gonad development of parent;
2) artificial induced spawning: water temperature is higher than 19 ℃, carries out artificial induced spawning, and oxytocic drug adopts the mixture of HCG and LHRH-A, and male and female are than being 2:3-4; Select the good female parent of maturity of fish gonads, namely belly expands obviously that softness, ovary profile are obvious, the individuality of the red and swollen evagination of gonopore, and advanced pedestrian worker hastens parturition, the poor slightly individuality of maturity proceeds reinforced cultivating, accelerate the ripening after, carry out artificial induced spawning again; Select the good male of maturity, take not inject or reduce the injected dose of oxytocic drug, prevent the sexual gland degeneration;
3) artificial incubation: fertilized egg collection is moved into the hatching pail hatching, and every cubic metre of water body is put 500,000 ovum; Hatching process is taked 24h flowing water inflation hatching, and inflow control swims in the water layer middle and upper part at 80% ovum; Keep 24h special messenger on duty, be responsible for variations such as monitoring current, water temperature, water quality, often scrub screen pack and in time remove impurity and the dead ovum of conglomeration;
4) prepare in training seedling pond: area is advisable with the rectangle Tu Chi of 1000-2000 ㎡; Before hastening parturition 5-7 days with quicklime thoroughly to Tu Chi sterilization, before hastening parturition 1-2 days through 100 mesh sieve thin,tough silk filtered water inlets to about the 60cm, the following fertile natural bait of cultivating, consumption are the ferment composite fertilizer of muck/667 ㎡+5-10 * 10-6 or urea etc. of 150kg;
5) elementary cultivation: just the membrane prelarva carries out earlier elementary cultivation in former incubator, in the time of water temperature 16-19 ℃, the prelarva yolk sac absorbs and finishes, throw something and feed 4-6 every day, it is main incubating artemia nauplii at the beginning of throwing something and feeding, be auxilliary with wheel animalcule, yolk particle, each feeding volume is to show a small surplus before throwing something and feeding next time to be as the criterion; Every day normal tracing observation fish body ingest, variations such as vigor, current, water temperature, water quality, in time remove impurity such as dead seedling, Ying Qin scrubs screen pack, guarantees that draining is unimpeded;
6) secondary cultivation: when treating that 10/mL appears in the long wheel animalcule to about the 1.0cm and in the above-mentioned native pond of getting ready in advance of prelarva, in time prelarva is moved in this training seedling pond and carry out secondary cultivation; Every day at the upper and lower noon slurry that soya bean is worn into of respectively splashing, the soya bean consumption is 1.5-2.0kg/667 ㎡; Total length reaches 2.0cm when above, mixes the bulk hanging platform with eel feed and tames and dociles bait, and throw something and feed 3-4 every day, and each feeding volume is to spend to eat up in 1 hour; Along with growing up of fish body, annotated about new water 5cm, until peak level in per 3 days; Sooner or later adhere to patrolling the pool every day, situations such as tracing observation fish body is ingested, vigor.
The present invention's advantage compared with prior art is:
1, improve fertilization rate and incubation rate: adopt conventional method to hasten parturition, the parent population of maturity difference after hastening parturition, though can spawning and fertilization because most maturation of ovum degree are not enough, hasten parturition fertilization rate and the incubation rate of parent population of integral body is low, average has only about 20%; This method takes first maturation to hasten parturition earlier, and its fertilization rate, incubation rate reach more than 60%.
2, improve the seed rearing survival rate: according to a conventional method, its cultivating survival rate is low, as 2000 the opening prelarva is directly trained the seedling pond down and cultivates, because too early lower storage reservoir, a little less than the prelarva energy, not foot phenomenon appears in natural bait easily, the survival rate of cultivating 2-5cm only 28.4%.After seed rearing adopted this method in 2003 and 2004, cultivate the above survival rate of 4cm and reach more than 60%.
3, improve year amount of growing seedlings: grew seedlings routinely in 2000,102 groups of the parent populations of hastening parturition lay eggs 1,260 ten thousand, hatch spray totally 130.6 ten thousand tails, and prelarva 69.1 ten thousand tails are cultivated on the following pool, and the seed of cultivating 2-5cm is 19.6 ten thousand tails only; After taking this method in 2002 and 2003; fertilization rate and incubation rate reach more than 60%, cultivate the above survival rate of 4cm and reach more than 60%, and 2002 and the amount of growing seedlings in 2003 reach 3,310,000 tails and 3,240,000 tails respectively; artificial seedling rearing's effect significantly improves, and year amount of growing seedlings reaches the scale breeding level.
Embodiment
It is bright further to understand basis by the embodiment of the invention given below, but protection of the present invention is not limited thereto.
Embodiment 1:
1) parent fish rearing condition: the Tu Chi of 3-5 mu is adopted in the parent fish rearing pond.At the beginning of annual 4 months or hastened parturition preceding about 5 days, do the pool clear pond sterilization with the quicklime of concentration 100kg/667 ㎡; Water filling after splashing 2 days, the depth of water are soaked and are put parent population or reserve parent fish in a suitable place to breed after 7 days greater than 1.5m, 200-300 tail/667 ㎡, and male and female are than being 1:1-2.
2) parent fish rearing: between the parent population feeding period, throwing something and feeding contains the self-control soft pellet diet of crude protein about 35%, every day 1-2 time, i.e. and 7:30-8:30,16:00-17:00, each feeding volume is by the 1%-2% of fish body gross weight; Under the normal condition, changed water 2-3 time in every month, change about water 10cm at every turn; Hastened parturition preceding 30-60 days, washed by water every day 2-3 hour, to promote the gonad development of parent.
3) artificial induced spawning: in annual April, water temperature stability carries out artificial induced spawning more than 19 ℃, and oxytocic drug is the mixture of HCG and LHRH-A, and male and female are than being 2:3-4, and spawning pond is circular chinese carp spawning inducing pool.Select the good female parent of maturity of fish gonads, be that belly expands obviously that softness, ovary profile are obvious, the individuality of the red and swollen evagination of gonopore, artificial induced spawning in advance, the poor slightly individuality of maturity proceeds reinforced cultivating, accelerate the ripening after, carry out artificial induced spawning again, select the good male of maturity, take not inject or reduce the injected dose of oxytocic drug, prevent the sexual gland degeneration.
4) postpartum, parent population was handled: postpartum, parent population moved in the small-sized cement pond about 200 ㎡, and drug disinfection is handled.With the potassium permanganate sterilization, concentration is 2g/ cubic meter water body earlier, and soak time is 24 hours, sterilization every other day once, be used in conjunction 2 times after, the povidone iodine sterilization that re-uses 1g/ cubic meter water body was changed water after 24 hours, after the fish body is stable, retract in the above-mentioned ready parent fish rearing pond.
5) artificial incubation: fertilized egg is collected, move into the hatching pail hatching with volumetric method counting back, every cubic metre of water body is put 500,000 ovum.Hatching process is taked the inflation hatching of 24h flowing water, and it is good that inflow control swims in the water layer middle and upper part at 80% ovum; Keep 24h special messenger on duty, be responsible for variations such as monitoring current, water temperature, water quality, often scrub screen pack and in time remove impurity and the dead ovum of conglomeration.
6) prepare in training seedling pond: area should not be too big, is advisable with the rectangle Tu Chi of 1000-2000 ㎡; Before hastening parturition 5-7 days with the quicklime sterilization of thoroughly cleaning up the pond, consumption is with the sterilization in parent fish rearing pond, before hastening parturition 1-2 days through 100 mesh sieve thin,tough silk filtered water inlets to about the 60cm, the following fertile natural bait of cultivating, consumption are the ferment composite fertilizer of muck/667 ㎡+5-10 * 10-6 or urea etc. of 150kg.
7) elementary cultivation: newly hatched larvae carries out earlier elementary cultivation in former incubator, in the time of water temperature 16-19 ℃, membrane prelarva yolk sac after about 120h absorbs and finishes, throw something and feed 4-6 every day, it is main incubating artemia nauplii at the beginning of throwing something and feeding, be auxilliary with wheel animalcule, yolk particle, each feeding volume is to show a small surplus before throwing something and feeding next time to be as the criterion; Every day frequent tracing observation fish body ingest, variations such as vigor, current, water temperature, water quality, in time remove impurity such as dead seedling, Ying Qin scrubs screen pack, guarantees that draining is unimpeded, prevents that spilling water from escaping seedling.
8) secondary cultivation: treat that (10/mL) time, in time prelarva is moved in this training seedling pond and carry out secondary cultivation on peak appears in the long wheel animalcule to about the 1.0cm and in the above-mentioned preprepared native pond of prelarva; Every day at the upper and lower noon slurry that soya bean is worn into of respectively splashing, the soya bean consumption is 1.5-2.0kg/667 ㎡.General through the cultivation more than 20 days, total length reaches 2.0cm when above, mixes the bulk hanging platform with eel feed and tames and dociles bait, and throw something and feed 3-4 every day, and feeding volume is to spend to eat up in the 1h at every turn; Along with growing up of fish body, annotated about new water 5cm, until peak level in per 3 days; Sooner or later adhere to patrolling the pool every day, situations such as tracing observation fish body is ingested, vigor are pinpointed the problems and are in time adopted an effective measure, and take precautions against in possible trouble.
Above-mentioned only is a specific embodiment of the present invention, but design concept of the present invention is not limited thereto, and allly utilizes this design that the present invention is carried out the change of unsubstantiality, all should belong to the behavior of invading protection domain of the present invention.
Claims (1)
1. total man worker's method of striped perch of growing seedlings in batches is characterized in that: comprise the steps:
1) parent fish rearing: select the Tu Chi of 3-5 mu, it is 200-300 tail/667 ㎡ that parent population or reserve parent fish are cultivated density, and male and female are than raising together with for 1:1-2; Parent population carries out reinforced cultivating, throws something and feeds to contain the self-control soft pellet diet of crude protein about 35%, guarantees balanced in nutrition; Hastened parturition preceding 30-60 days, the 2-3h that washes by water every day is to promote the gonad development of parent;
2) artificial induced spawning: water temperature is higher than 19 ℃, carries out artificial induced spawning, and oxytocic drug adopts the mixture of HCG and LHRH-A, and male and female are than raising together with for 2:3-4; Select the good female parent of maturity of fish gonads, advanced pedestrian worker hastens parturition, the poor slightly individuality of maturity proceeds reinforced cultivating, accelerate the ripening after, carry out artificial induced spawning again; Select the good male of maturity, take not inject or reduce the injected dose of oxytocic drug, prevent the sexual gland degeneration;
3) artificial incubation: fertilized egg collection is moved into the hatching pail hatching, and every cubic metre of water body is put 500,000 ovum; Hatching process is taked 24h flowing water inflation hatching, and inflow control swims in the water layer middle and upper part at 80% ovum; Often scrub screen pack and in time remove impurity and the dead ovum of conglomeration;
4) prepare in training seedling pond: the preparation area is that the rectangle Tu Chi of 1000-2000 ㎡ is advisable; Before hastening parturition 5-7 days with quicklime thoroughly to Tu Chi sterilization, before hastening parturition 1-2 days through 100 mesh sieve thin,tough silk filtered water inlets to about the 60cm, the following fertile natural bait of cultivating, consumption are ferment composite fertilizer or the urea of muck/667 ㎡+5-10 * 10-6 of 150kg;
5) elementary cultivation: just the membrane prelarva carries out earlier elementary cultivation in former incubator, in the time of water temperature 16-19 ℃, the prelarva yolk sac absorbs and finishes, throw something and feed 4-6 every day, it is main incubating artemia nauplii at the beginning of throwing something and feeding, be auxilliary with wheel animalcule, yolk particle, each feeding volume is to show a small surplus before throwing something and feeding next time to be as the criterion; Ying Qin scrubs screen pack, guarantees that draining is unimpeded;
6) secondary cultivation: when treating that 10/mL appears in the long wheel animalcule to about the 1.0cm and in the above-mentioned native pond of getting ready in advance of prelarva, in time prelarva is moved in this training seedling pond and carry out secondary cultivation; Every day at the upper and lower noon slurry that soya bean is worn into of respectively splashing, the soya bean consumption is 1.5-2.0kg/667 ㎡; Total length reaches 2.0cm when above, mixes the bulk hanging platform with eel feed and tames and dociles bait, and throw something and feed 3-4 every day, and each feeding volume is to spend to eat up in 1 hour; Along with growing up of fish body, annotated about new water 5cm, until peak level in per 3 days.
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| CN105830972A (en) * | 2016-03-30 | 2016-08-10 | 邵侠 | Weever fry high survival rate seedling method |
| CN105994039A (en) * | 2016-05-26 | 2016-10-12 | 中国长江三峡集团公司中华鲟研究所 | Intensive culture method for improving rhinogobio ventralis larva culture survival rate |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103430894A (en) * | 2013-09-12 | 2013-12-11 | 中国水产科学研究院黄海水产研究所 | Method for cultivating anarrhichthys ocellatus larvas |
| CN105830972A (en) * | 2016-03-30 | 2016-08-10 | 邵侠 | Weever fry high survival rate seedling method |
| CN105994039A (en) * | 2016-05-26 | 2016-10-12 | 中国长江三峡集团公司中华鲟研究所 | Intensive culture method for improving rhinogobio ventralis larva culture survival rate |
| CN105994039B (en) * | 2016-05-26 | 2018-09-28 | 中国长江三峡集团公司中华鲟研究所 | A kind of intensive culture method improving long Qi Wen Minnow seed rearing survival rates |
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Application publication date: 20130717 |